def unblock_network(cluster, mgmt_ip, mgmt_port, final_state):
# Unblock
if util.iptables_drop('D', '127.0.0.100') == False:
util.log('delete a bloking role to iptables fail.')
return False
# Check cluster state
for i in range(3):
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state)
time.sleep(1)
return True
def unblock_network(cluster, mgmt_ip, mgmt_port, final_state):
# Unblock
out = util.sudo('iptables -D OUTPUT -d 127.0.0.100 -j DROP')
if out.succeeded == False:
util.log('delete a bloking role to iptables fail. output:%s' % out)
return False
# Check cluster state
for i in range(3):
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state)
time.sleep(1)
return True
def block_network(cluster, mgmt_ip, mgmt_port):
# Block
if util.iptables_drop('A', '127.0.0.100') == False:
util.log('add a bloking role to iptables fail.')
return False
for i in range(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
for i in range(2):
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port)
time.sleep(1)
return True
def block_network(cluster, mgmt_ip, mgmt_port):
# Block
out = util.sudo('iptables -A OUTPUT -d 127.0.0.100 -j DROP')
if out.succeeded == False:
util.log('add a bloking role to iptables fail. output:%s' % out)
return False
for i in range(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
for i in range(2):
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port)
time.sleep(1)
return True
def __check_cluster_state(self):
leader_cm = classify_cm(self.__servers)['leader'][0]
for cluster in self.__cmi['cluster']:
ret = util. await (30)(lambda x: x, lambda: util.check_cluster(
cluster['clusterName'].encode('ascii'), leader_cm['ip'],
leader_cm['port'], None, True))
if ret == False:
return False
return True
def __check_cluster_state(self):
leader_cm = classify_cm(self.__servers)['leader'][0]
for cluster in self.__cmi['cluster']:
ret = util.await(30)(
lambda x: x,
lambda : util.check_cluster(cluster['clusterName'].encode('ascii'), leader_cm['ip'], leader_cm['port'], None, True))
if ret == False:
return False
return True
def slave_failover_while_hang( self ):
util.print_frame()
# get gateway info
ip, port = util.get_rand_gateway( self.cluster )
gw = gateway_mgmt.Gateway( self.cluster['servers'][0]['id'] )
ret = gw.connect( ip, port )
self.assertEqual( ret, 0, 'failed to connect to gateway, %s:%d' % (ip, port) )
# set values
for i in range( 0, 10000 ):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
gw.write( cmd )
res = gw.read_until( '\r\n' )
self.assertEqual( res, '+OK\r\n', 'failed to set values. cmd:%s, res:%s' % (cmd, res) )
# get master, slave1, slave2
if len(self.cluster['servers']) == 3:
m, s1, s2 = util.get_mss( self.cluster )
self.assertNotEqual( m, None, 'master is None.' )
self.assertNotEqual( s1, None, 'slave1 is None.' )
self.assertNotEqual( s2, None, 'slave2 is None.' )
else:
m, s1 = util.get_mss( self.cluster )
self.assertNotEqual( m, None, 'master is None.' )
self.assertNotEqual( s1, None, 'slave1 is None.' )
util.log( 'server state before hang' )
util.log_server_state( self.cluster )
self.failover_while_hang( s1 )
util.log( 'server state transition after hang' )
util.log_server_state( self.cluster )
redis1 = redis_mgmt.Redis( s1['id'] )
ret = redis1.connect( s1['ip'], s1['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis(%s:%d).' % (s1['ip'], s1['redis_port']) )
# set new values
for i in range( 10000, 20000 ):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
redis1.write( cmd )
res = redis1.read_until( '\r\n' )
self.assertEqual( res, '+OK\r\n', 'failed to set values to redis1. cmd:%s, res:%s' % (cmd[:-2], res) )
if len(self.cluster['servers']) == 3:
redis2 = redis_mgmt.Redis( s2['id'] )
ret = redis2.connect( s2['ip'], s2['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis(%s:%d).' % (s2['ip'], s2['redis_port']) )
# check new values
for i in range( 10000, 20000 ):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis2.write( cmd )
redis2.read_until( '\r\n' )
res = redis2.read_until( '\r\n' )
self.assertEqual( res, '%d\r\n' % i, 'failed to get values from redis2. %s != %d' % (res, i) )
util.log( 'succeeded : check values with set/get operations with pgs%d and pgs%d.' % (s1['id'], s2['id']) )
redis0 = redis_mgmt.Redis( m['id'] )
ret = redis0.connect( m['ip'], m['redis_port'] )
self.assertEquals( ret, 0, 'failed to connect to redis(%s:%d).' % (m['ip'], m['redis_port']) )
# check new values
for i in range( 10000, 20000 ):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis0.write( cmd )
redis0.read_until( '\r\n' )
res = redis0.read_until( '\r\n' )
self.assertEqual( res, '%d\r\n' % i, 'failed to get values from redis2. %s != %d' % (res[:-2], i) )
# check consistency
self.assertEqual(util.check_cluster(self.cluster['cluster_name'], self.mgmt_ip, self.mgmt_port), True, 'role consistency fail')
return 0
def master_and_slave_hang( self ):
# get gateway info
ip, port = util.get_rand_gateway( self.cluster )
gw = gateway_mgmt.Gateway( self.cluster['servers'][0]['id'] )
ret = gw.connect( ip, port )
self.assertEqual( ret, 0, 'failed to connect to gateway, %s:%d' % (ip, port) )
# set values
for i in range( 0, 10000 ):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
gw.write( cmd )
res = gw.read_until( '\r\n' )
self.assertEqual( res, '+OK\r\n', 'failed to set values. cmd:%s, res:%s' % (cmd, res) )
# get master, slave1, slave2
if len(self.cluster['servers']) == 3:
m, s1, s2 = util.get_mss( self.cluster )
self.assertNotEqual( m, None, 'master is None.' )
self.assertNotEqual( s1, None, 'slave1 is None.' )
self.assertNotEqual( s2, None, 'slave2 is None.' )
else:
m, s1 = util.get_mss( self.cluster )
self.assertNotEqual( m, None, 'master is None.' )
self.assertNotEqual( s1, None, 'slave1 is None.' )
util.log( 'server state before hang' )
util.log_server_state( self.cluster )
# hang
smr_master = smr_mgmt.SMR( m['id'] )
ret = smr_master.connect( m['ip'], m['smr_mgmt_port'] )
self.assertEqual( ret, 0, 'failed to connect to master. %s:%d' % (m['ip'], m['smr_mgmt_port']) )
smr_slave = smr_mgmt.SMR( s1['id'] )
ret = smr_slave.connect( s1['ip'], s1['smr_mgmt_port'] )
self.assertEqual( ret, 0, 'failed to connect to master. %s:%d' % (s1['ip'], s1['smr_mgmt_port']) )
smr_master.write( 'fi delay sleep 1 10000\r\n' )
reply = smr_master.read_until( '\r\n', 1 )
if reply != None and reply.find('-ERR not supported') != -1:
self.assertEqual( 0, 1, 'make sure that smr has compiled with gcov option.' )
smr_slave.write( 'fi delay sleep 1 10000\r\n' )
util.log( 'server state transition after hang' )
util.log_server_state( self.cluster )
time.sleep( 5 )
if len(self.cluster['servers']) == 3:
# wait for forced master election
success = True
for i in range( 15 ):
state = []
util.check_cluster(self.cluster['cluster_name'], self.leader_cm['ip'], self.leader_cm['cm_port'], state)
s2_state = filter(lambda s: s['pgs_id'] == s2['id'], state)[0]
role = s2_state['active_role']
if role != 'M':
success = False
break
time.sleep( 1 )
util.log( '' )
util.log( 'It expects that pgs2 is a master. PG.COPY: 3, PG.Q: 2' )
util.log( '' )
util.log_server_state( self.cluster )
self.assertEqual( success, True, 'failed to check copy-quorum' )
ok = False
for i in xrange(10):
ok = util.check_cluster(self.cluster['cluster_name'], self.leader_cm['ip'], self.leader_cm['cm_port'])
if ok:
break
self.assertTrue( ok, 'Cluster state is not normal!' )
redis2 = redis_mgmt.Redis( s2['id'] )
ret = redis2.connect( s2['ip'], s2['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis(%s:%d).' % (s2['ip'], s2['redis_port']) )
# set new values
for i in range( 10000, 20000 ):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
redis2.write( cmd )
res = redis2.read_until( '\r\n' )
self.assertEqual( res, '+OK\r\n', 'failed to set values to redis1. cmd:%s, res:%s' % (cmd[:-2], res) )
util.log( 'server state transition after hang' )
util.log_server_state( self.cluster )
redis0 = redis_mgmt.Redis( m['id'] )
ret = redis0.connect( m['ip'], m['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis0(%s:%d).' % (m['ip'], m['redis_port']) )
redis1 = redis_mgmt.Redis( s1['id'] )
ret = redis1.connect( s1['ip'], s1['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis1(%s:%d).' % (s1['ip'], s1['redis_port']) )
if len(self.cluster['servers']) != 3:
# set new values
for i in range( 10000, 20000 ):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
redis0.write( cmd )
res = redis0.read_until( '\r\n' )
self.assertEqual( res, '+OK\r\n', 'failed to set values to redis0. cmd:%s, res:%s' % (cmd[:-2], res) )
# check new values (m)
for i in range( 10000, 20000 ):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis0.write( cmd )
redis0.read_until( '\r\n' )
res = redis0.read_until( '\r\n' )
self.assertEqual( res, '%d\r\n' % i, 'failed to get values from redis(id:%d). %s != %d' % (m['id'], res, i) )
# check new values (s1)
for i in range( 10000, 20000 ):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis1.write( cmd )
redis1.read_until( '\r\n' )
res = redis1.read_until( '\r\n' )
self.assertEqual( res, '%d\r\n' % i, 'failed to get values from redis(id:%d). %s != %d' % (s1['id'], res[:-2], i) )
# check consistency
self.assertEqual(util.check_cluster(self.cluster['cluster_name'], self.mgmt_ip, self.mgmt_port), True, 'role consistency fail')
return 0
def test_all_pgs_hang( self ):
util.print_frame()
self.setup_test_cluster( self.cluster_3copy )
# get gateway info
ip, port = util.get_rand_gateway( self.cluster )
gw = gateway_mgmt.Gateway( self.cluster['servers'][0]['id'] )
ret = gw.connect( ip, port )
self.assertEqual( ret, 0, 'failed to connect to gateway, %s:%d' % (ip, port) )
# set values
for i in range( 0, 10000 ):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
gw.write( cmd )
res = gw.read_until( '\r\n' )
self.assertEqual( res, '+OK\r\n', 'failed to set values. cmd:%s, res:%s' % (cmd, res) )
# get master, slave1, slave2
m, s1, s2 = util.get_mss( self.cluster )
self.assertNotEqual( m, None, 'master is None.' )
self.assertNotEqual( s1, None, 'slave1 is None.' )
self.assertNotEqual( s2, None, 'slave2 is None.' )
util.log( 'server state before hang' )
util.log_server_state( self.cluster )
# hang
smr_master = smr_mgmt.SMR( m['id'] )
ret = smr_master.connect( m['ip'], m['smr_mgmt_port'] )
self.assertEqual( ret, 0, 'failed to connect to master. %s:%d' % (m['ip'], m['smr_mgmt_port']) )
smr_slave1 = smr_mgmt.SMR( s1['id'] )
ret = smr_slave1.connect( s1['ip'], s1['smr_mgmt_port'] )
self.assertEqual( ret, 0, 'failed to connect to master. %s:%d' % (s1['ip'], s1['smr_mgmt_port']) )
smr_slave2 = smr_mgmt.SMR( s2['id'] )
ret = smr_slave2.connect( s2['ip'], s2['smr_mgmt_port'] )
self.assertEqual( ret, 0, 'failed to connect to master. %s:%d' % (s2['ip'], s2['smr_mgmt_port']) )
m_ts = util.get_timestamp_of_pgs( m )
s1_ts = util.get_timestamp_of_pgs( s1 )
s2_ts = util.get_timestamp_of_pgs( s2 )
smr_master.write( 'fi delay sleep 1 8000\r\n' )
reply = smr_master.read_until( '\r\n', 1 )
if reply != None and reply.find('-ERR not supported') != -1:
self.assertEqual( 0, 1, 'make sure that smr has compiled with gcov option.' )
smr_slave1.write( 'fi delay sleep 1 8000\r\n' )
smr_slave2.write( 'fi delay sleep 1 8000\r\n' )
time.sleep( 10 )
# check consistency
ok = False
for try_cnt in xrange(20):
ok = util.check_cluster(self.cluster['cluster_name'], self.mgmt_ip, self.mgmt_port)
if ok:
break
time.sleep(0.5)
self.assertTrue(ok, 'Unstable cluster state')
util.log( 'server state transition after hang' )
util.log_server_state( self.cluster )
redis0 = redis_mgmt.Redis( m['id'] )
ret = redis0.connect( m['ip'], m['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis(%s:%d).' % (m['ip'], m['redis_port']) )
# set values
for i in range( 10000, 20000 ):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
redis0 .write( cmd )
res = redis0.read_until( '\r\n' )
self.assertEqual( res, '+OK\r\n', 'failed to set values. cmd:%s, res:%s' % (cmd, res) )
redis1 = redis_mgmt.Redis( s1['id'] )
ret = redis1.connect( s1['ip'], s1['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis(%s:%d).' % (s1['ip'], s1['redis_port']) )
redis2 = redis_mgmt.Redis( s2['id'] )
ret = redis2.connect( s2['ip'], s2['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis(%s:%d).' % (s2['ip'], s2['redis_port']) )
# check new values (m)
for i in range( 10000, 20000 ):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis0.write( cmd )
redis0.read_until( '\r\n' )
res = redis0.read_until( '\r\n' )
self.assertEqual( res, '%d\r\n' % i, 'failed to get values from redis(id:%d). %s != %d' % (m['id'], res, i) )
# check new values (s1)
for i in range( 10000, 20000 ):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis1.write( cmd )
redis1.read_until( '\r\n' )
res = redis1.read_until( '\r\n' )
self.assertEqual( res, '%d\r\n' % i, 'failed to get values from redis(id:%d). %s != %d' % (s1['id'], res[:-2], i) )
# check new values (s2)
for i in range( 10000, 20000 ):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis2.write( cmd )
redis2.read_until( '\r\n' )
res = redis2.read_until( '\r\n' )
self.assertEqual( res, '%d\r\n' % i, 'failed to get values from redis(id:%d). %s != %d' % (s2['id'], res[:-2], i) )
# check consistency
ok = False
for try_cnt in range(0, 10):
ok = util.check_cluster(self.cluster['cluster_name'], self.mgmt_ip, self.mgmt_port)
print ok
if ok:
break
time.sleep(1)
self.assertEqual(ok, True, 'role consistency fail')
return 0
def test_1_mgmt_is_isolated(self):
util.print_frame()
util.iptables_print_list()
cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_1', config.clusters)[0]
util.log(util.json_to_str(cluster))
# MGMT
mgmt_ip = cluster['servers'][0]['real_ip']
mgmt_port = cluster['servers'][0]['cm_port']
# Create cluster
conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster )
self.assertIsNotNone(conf_checker, 'failed to initialize cluster')
# Print initial state of cluster
util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
initial_state = []
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')
# Set SMR option (slave_idle_timeout)
util.log('\n\n\n ### Set SMR option ###')
for s in cluster['servers']:
t = telnet.Telnet('SMR%d' % s['id'])
self.assertEqual(t.connect(s['ip'], s['smr_mgmt_port']), 0,
'Failed to connect to smr. ADDR=%s:%d' % (s['ip'], s['smr_mgmt_port']))
cmd = 'confset slave_idle_timeout_msec 18000'
util.log('[%s:%d] >> %s' % (s['ip'], s['smr_mgmt_port'], cmd))
t.write('confset slave_idle_timeout_msec 18000\r\n')
reply = t.read_until('\r\n').strip()
util.log('[%s:%d] << %s' % (s['ip'], s['smr_mgmt_port'], reply))
self.assertEqual(reply, '+OK', 'Failed to set slave_idle_timeout, REPLY=%s' % reply)
# Network isolation test
for cnt in range(5):
# Block network
util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % cnt)
for s in cluster['servers']:
"""Loopback Address Range (Reference : RFC3330)
127.0.0.0/8 - This block is assigned for use as the Internet host
loopback address. A datagram sent by a higher level protocol to an
address anywhere within this block should loop back inside the host.
This is ordinarily implemented using only 127.0.0.1/32 for loopback,
but no addresses within this block should ever appear on any network
anywhere [RFC1700, page 5].
"""
self.assertTrue(util.iptables_drop('A', '127.0.0.100', s['smr_mgmt_port']), 'add a bloking role to iptables fail.')
for i in range(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
ok = False
for i in range(7):
isolated_states = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
time.sleep(1)
state_transition_done = True
for s in isolated_states:
if s['ip'] != '127.0.0.100':
continue
if s['active_role'] != '?' or s['mgmt_role'] != 'N':
state_transition_done = False
if state_transition_done :
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state transition')
# Unblock network
util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % cnt)
for s in cluster['servers']:
self.assertTrue(util.iptables_drop('D', '127.0.0.100', s['smr_mgmt_port']), 'delete a bloking role to iptables fail.')
# Check cluster state
ok = False
for i in range(7):
final_state = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True)
all_green = True
for s in final_state:
if is_pgs_normal(s) == False:
all_green = False
if all_green:
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state consistency')
# Check state
self.assertNotEqual(initial_state, None, 'initial_state is None')
self.assertNotEqual(final_state, None, 'final_state is None')
self.assertTrue(conf_checker.final_check())
# Shutdown cluster
default_cluster.finalize(cluster)
def role_change_with_hanging_pgs(self, hanging_servers, running_servers,
target_id, master):
util.log('hanging_servers:%s' % hanging_servers)
util.log('running_servers:%s' % running_servers)
util.log('target_id:%s' % target_id)
# Initial data
util.put_some_data(self.cluster, 3, 10)
util.log("States (before role change)")
util.log_server_state(self.cluster)
# Get old timestamp
old_timestamps = {}
for s in self.cluster['servers']:
ts = util.get_timestamp_of_pgs(s)
old_timestamps[s['id']] = ts
# hang
for s in hanging_servers:
smr = smr_mgmt.SMR(s['id'])
ret = smr.connect(s['ip'], s['smr_mgmt_port'])
self.assertEqual(
ret, 0, 'failed to connect to master. %s:%d' %
(s['ip'], s['smr_mgmt_port']))
util.log("PGS '%d' hang" % s['id'])
smr.write('fi delay sleep 1 13000\r\n')
reply = smr.read_until('\r\n', 1)
if reply != None and reply.find('-ERR not supported') != -1:
self.assertEqual(
0, 1, 'make sure that smr has compiled with gcov option.')
smr.disconnect()
# Role change
master_id = util.role_change(self.leader_cm,
self.cluster['cluster_name'], target_id)
self.assertEqual(master_id, -1,
'We expected that role_change failed, but success')
# Check rollback - check quorum
if master not in hanging_servers:
expected = 2
ok = self.__check_quorum(master, expected)
self.assertTrue(ok,
'rollback quorum fail. expected:%s' % (expected))
# Check rollback - get new timestamp
new_timestamps_in_hang = {}
for s in running_servers:
ts = util.get_timestamp_of_pgs(s)
new_timestamps_in_hang[s['id']] = ts
# Check rollback - compare old timestamps and new timestamps
for s in running_servers:
old_ts = old_timestamps[s['id']]
new_ts = new_timestamps_in_hang[s['id']]
self.assertEqual(
old_ts, new_ts,
'Timestamp of a running server has changed. %d->%d' %
(old_ts, new_ts))
time.sleep(16)
util.log("States (after role change)")
util.log_server_state(self.cluster)
self.load_gen_list = {}
# Start load generator
for i in range(self.max_load_generator):
ip, port = util.get_rand_gateway(self.cluster)
load_gen = load_generator.LoadGenerator(i, ip, port)
load_gen.start()
self.load_gen_list[i] = load_gen
# Check quorum
if master in hanging_servers:
m, s1, s2 = util.get_mss(self.cluster)
self.assertNotEqual(m, None, 'master is None.')
self.assertNotEqual(s1, None, 'slave1 is None.')
self.assertNotEqual(s2, None, 'slave2 is None.')
expected = 2
ok = self.__check_quorum(m, expected)
self.assertTrue(ok,
'rollback quorum fail. expected:%s' % (expected))
# Check cluster state
normal_state = False
for i in xrange(20):
normal_state = util.check_cluster(self.cluster['cluster_name'],
self.leader_cm['ip'],
self.leader_cm['cm_port'],
check_quorum=True)
if normal_state:
break
time.sleep(0.5)
self.assertTrue(normal_state, "Unstable cluster state")
# Cheeck Consistency
for i in range(self.max_load_generator):
self.load_gen_list[i].quit()
for i in range(self.max_load_generator):
self.load_gen_list[i].join()
self.assertTrue(self.load_gen_list[i].isConsistent(),
'Inconsistent after migration')
self.load_gen_list.pop(i, None)
def test_5_mgmt_is_isolated_with_master_failover(self):
util.print_frame()
out = util.sudo('iptables -L')
util.log('====================================================================')
util.log('out : %s' % out)
util.log('out.return_code : %d' % out.return_code)
util.log('out.stderr : %s' % out.stderr)
util.log('out.succeeded : %s' % out.succeeded)
# Add forwarding role (127.0.0.100 -> 127.0.0.1)
out = util.sudo('iptables -t nat -A OUTPUT -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -A PREROUTING -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_1', config.clusters)[0]
util.log(util.json_to_str(cluster))
self.leader_cm = cluster['servers'][0]
# MGMT
mgmt_ip = cluster['servers'][0]['real_ip']
mgmt_port = cluster['servers'][0]['cm_port']
# Create cluster
ret = default_cluster.initialize_starting_up_smr_before_redis( cluster )
self.assertEqual(0, ret, 'failed to TestMaintenance.initialize')
# Print initial state of cluster
util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
initial_state = []
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')
# Network isolation test
for loop_cnt in range(3):
master, slave1, slave2 = util.get_mss(cluster)
self.assertNotEquals(master, None, 'there is no master')
self.assertNotEquals(slave1, None, 'there is no slave1')
self.assertNotEquals(slave2, None, 'there is no slave2')
# Block network
util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % loop_cnt)
out = util.sudo('iptables -A OUTPUT -d 127.0.0.100 -j DROP')
self.assertTrue(out.succeeded, 'add a bloking role to iptables fail. output:%s' % out)
for i in range(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
ok = False
for i in range(10):
isolated_states = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
time.sleep(1)
state_transition_done = True
for s in isolated_states:
if s['ip'] != '127.0.0.100':
continue
if s['active_role'] != '?' or s['mgmt_role'] != 'N':
state_transition_done = False
if state_transition_done :
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state transition')
# Shutdown master
util.log( 'shutdown pgs%d while hanging.' % master['id'] )
ret = testbase.request_to_shutdown_smr( master )
self.assertEqual( ret, 0, 'failed to shutdown smr. id:%d' % master['id'] )
ret = testbase.request_to_shutdown_redis( master )
self.assertEqual( ret, 0, 'failed to shutdown redis. id:%d' % master['id'] )
# Check state F
max_try = 20
expected = 'F'
for i in range( 0, max_try):
util.log('MGMT_IP:%s, MGMT_PORT:%d' % (mgmt_ip, mgmt_port))
state = util._get_smr_state( master['id'], cluster['cluster_name'], mgmt_ip, mgmt_port )
if expected == state:
break;
time.sleep( 1 )
self.assertEqual( expected , state,
'master%d - state:%s, expected:%s' % (master['id'], state, expected) )
util.log( 'succeeded : pgs%d state changed to F.' % master['id'] )
# Unblock network
util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % loop_cnt)
out = util.sudo('iptables -D OUTPUT -d 127.0.0.100 -j DROP')
self.assertTrue(out.succeeded, 'delete a bloking role to iptables fail. output:%s' % out)
# Check cluster state
ok = False
for i in range(7):
final_state = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True)
state_consistency = True
for s in final_state:
if s['pgs_id'] == master['id']:
continue
if s['active_role'] != s['mgmt_role']:
state_consistency = False
if state_consistency:
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state consistency')
# Recovery
util.log( 'restart pgs%d.' % master['id'] )
ret = testbase.request_to_start_smr( master )
self.assertEqual( ret, 0, 'failed to start smr. id:%d' % master['id'] )
ret = testbase.request_to_start_redis( master )
self.assertEqual( ret, 0, 'failed to start redis. id:%d' % master['id'] )
wait_count = 20
ret = testbase.wait_until_finished_to_set_up_role( master, wait_count )
self.assertEqual( ret, 0, 'failed to role change. smr_id:%d' % (master['id']) )
redis = redis_mgmt.Redis( master['id'] )
ret = redis.connect( master['ip'], master['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis' )
ok = False
for i in xrange(5):
ok = util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, check_quorum=True)
if ok:
break
else:
time.sleep(1)
self.assertTrue(ok, 'failed to check cluster state')
# Check state
self.assertNotEqual(initial_state, None, 'initial_state is None')
self.assertNotEqual(final_state, None, 'final_state is None')
initial_state = sorted(initial_state, key=lambda x: int(x['pgs_id']))
final_state = sorted(final_state, key=lambda x: int(x['pgs_id']))
for i in range(0, 3):
msg = 'ts (%d)%d -> (%d)%d' % (initial_state[i]['pgs_id'], initial_state[i]['active_ts'], final_state[i]['pgs_id'], final_state[i]['active_ts'])
util.log(msg)
self.assertNotEqual(initial_state[i]['active_ts'], final_state[i]['active_ts'], msg)
for i in range(3, 6):
msg = 'ts (%d)%d -> (%d)%d' % (initial_state[i]['pgs_id'], initial_state[i]['active_ts'], final_state[i]['pgs_id'], final_state[i]['active_ts'])
util.log(msg)
self.assertEqual(initial_state[i]['active_ts'], final_state[i]['active_ts'], msg)
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, check_quorum=True), 'failed to check cluster state')
# Shutdown cluster
ret = default_cluster.finalize( cluster )
self.assertEqual(ret, 0, 'failed to TestMaintenance.finalize')
# Delete forwarding role (127.0.0.100 -> 127.0.0.1)
out = util.sudo('iptables -t nat -D OUTPUT -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -D PREROUTING -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
def test_6_repeat_isolation_and_no_opinion_linepay(self):
util.print_frame()
util.iptables_print_list()
# Add forwarding role
self.assertTrue(util.iptables_redirect('A', '127.0.0.100', '127.0.0.1'), 'add a forwarding role to iptables fail.')
self.assertTrue(util.iptables_redirect('A', '127.0.0.101', '127.0.0.1'), 'add a forwarding role to iptables fail.')
self.assertTrue(util.iptables_redirect('A', '127.0.0.102', '127.0.0.1'), 'add a forwarding role to iptables fail.')
cluster_name = 'no_opinion'
cluster = filter(lambda x: x['cluster_name'] == cluster_name, config.clusters)[0]
util.log(util.json_to_str(cluster))
self.leader_cm = cluster['servers'][0]
# MGMT
mgmt_ip = cluster['servers'][0]['real_ip']
mgmt_port = cluster['servers'][0]['cm_port']
# Create cluster
conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster )
self.assertIsNotNone(conf_checker, 'failed to initialize cluster')
# Print initial state of cluster
util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
initial_state = []
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')
# Network isolation test
loop_cnt = 0
while (loop_cnt < 20):
loop_cnt += 1
# Block network
util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % loop_cnt)
self.assertTrue(util.iptables_drop('A', '127.0.0.102'), 'add a bloking role to iptables fail.')
for i in range(1):
util.log('waiting... %d' % (i + 1))
time.sleep(0.1)
self.assertTrue(util.iptables_drop('A', '127.0.0.100'), 'add a bloking role to iptables fail.')
for i in range(3):
util.log('waiting... %d' % (i + 1))
time.sleep(1.2)
self.assertTrue(util.iptables_drop('A', '127.0.0.101'), 'add a bloking role to iptables fail.')
for i in range(1):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Unblock network
util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % loop_cnt)
self.assertTrue(util.iptables_drop('D', '127.0.0.102'), 'delete a bloking role to iptables fail.')
for i in range(0):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
self.assertTrue(util.iptables_drop('D', '127.0.0.100'), 'delete a bloking role to iptables fail.')
for i in range(0):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
self.assertTrue(util.iptables_drop('D', '127.0.0.101'), 'delete a bloking role to iptables fail.')
for i in range(3):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Print state of cluster
util.log('\n ### STATE OF CLUSTER ### ')
cluster_state = False
for i in range(10):
cluster_state = util.check_cluster(cluster_name, mgmt_ip, mgmt_port, initial_state, check_quorum=True)
if cluster_state == True:
break
else:
time.sleep(1)
self.assertTrue(cluster_state, 'failed to check cluster state')
all_in_f = True
for s in cluster['servers']:
if checkLastState(mgmt_ip, s['cm_port'], cluster_name, 0, 'F') == False:
all_in_f = False
break
self.assertFalse(all_in_f, 'PGS0`s last state remains in F')
# Delete forwarding role
self.assertTrue(util.iptables_redirect('D', '127.0.0.100', '127.0.0.1'), 'delete a forwarding role to iptables fail.')
self.assertTrue(util.iptables_redirect('D', '127.0.0.101', '127.0.0.1'), 'delete a forwarding role to iptables fail.')
self.assertTrue(util.iptables_redirect('D', '127.0.0.102', '127.0.0.1'), 'delete a forwarding role to iptables fail.')
self.assertTrue(conf_checker.final_check())
# Shutdown cluster
default_cluster.finalize(cluster)
def test_2_some_pgs_is_isolated(self):
util.print_frame()
util.iptables_print_list()
# Add forwarding role (127.0.0.100 -> 127.0.0.1)
self.assertTrue(util.iptables_redirect('A', '127.0.0.100', '127.0.0.1'), 'add a forwarding role to iptables fail.')
cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_2', config.clusters)[0]
util.log(util.json_to_str(cluster))
# MGMT
mgmt_ip = cluster['servers'][0]['real_ip']
mgmt_port = cluster['servers'][0]['cm_port']
# Create cluster
conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster )
self.assertIsNotNone(conf_checker, 'failed to initialize cluster')
# Place master on virtual ip address in order to cause master election.
pg_id = 0
m = util.get_server_by_role_and_pg(cluster['servers'], 'master', pg_id)
s = util.get_server_by_role_and_pg(cluster['servers'], 'slave', pg_id)
if m.has_key('ip') == True and m.has_key('real_ip') == False:
ret = util.role_change(cluster['servers'][0], cluster['cluster_name'], s['id'])
self.assertNotEquals(ret, -1, 'change %d to a master fail' % s['id'])
# Print initial state of cluster
util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
initial_state = []
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')
# Network isolation test
for cnt in range(3):
# Block network
util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % cnt)
self.assertTrue(util.iptables_drop('A', '127.0.0.100'), 'add a bloking role to iptables fail.')
for i in range(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
ok = False
for i in range(7):
isolated_states = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
time.sleep(1)
state_transition_done = True
for s in isolated_states:
if s['pgs_id'] == 1:
continue
if s['active_role'] != '?' or s['mgmt_role'] != 'N':
state_transition_done = False
if state_transition_done :
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state transition')
# Unblock network
util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % cnt)
self.assertTrue(util.iptables_drop('D', '127.0.0.100'), 'delete a bloking role to iptables fail.')
# Check cluster state
ok = False
for i in range(7):
final_state = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True)
state_consistency = True
for s in final_state:
if s['pgs_id'] == 1:
continue
if is_pgs_normal(s) == False:
state_consistency = False
if state_consistency:
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state consistency')
# Check state
self.assertNotEqual(initial_state, None, 'initial_state is None')
self.assertNotEqual(final_state, None, 'final_state is None')
initial_state = sorted(initial_state, key=lambda x: int(x['pgs_id']))
final_state = sorted(final_state, key=lambda x: int(x['pgs_id']))
for i in range(len(final_state)):
msg = 'ts (%d)%d -> (%d)%d' % (initial_state[i]['pgs_id'], initial_state[i]['active_ts'], final_state[i]['pgs_id'], final_state[i]['active_ts'])
util.log(msg)
self.assertNotEqual(initial_state[i]['active_ts'], final_state[i]['active_ts'], msg)
# Delete forwarding role (127.0.0.100 -> 127.0.0.1)
self.assertTrue(util.iptables_redirect('D', '127.0.0.100', '127.0.0.1'), 'delete a forwarding role to iptables fail')
self.assertTrue(conf_checker.final_check())
# Shutdown cluster
default_cluster.finalize(cluster)
def test_7_dirty_network_fi(self):
util.print_frame()
clnts = []
try:
out = util.sudo('iptables -L')
util.log('====================================================================')
util.log('out : %s' % out)
util.log('out.return_code : %d' % out.return_code)
util.log('out.stderr : %s' % out.stderr)
util.log('out.succeeded : %s' % out.succeeded)
# Add forwarding role
out = util.sudo('iptables -t nat -A OUTPUT -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -A PREROUTING -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
cluster_name = 'network_isolation_cluster_1'
cluster = filter(lambda x: x['cluster_name'] == cluster_name, config.clusters)[0]
util.log(util.json_to_str(cluster))
self.leader_cm = cluster['servers'][0]
# MGMT
mgmt_ip = cluster['servers'][0]['real_ip']
mgmt_port = cluster['servers'][0]['cm_port']
# Create cluster
ret = default_cluster.initialize_starting_up_smr_before_redis( cluster,
conf={'cm_context':'applicationContext-fi.xml'})
self.assertEqual(0, ret, 'failed to TestMaintenance.initialize')
# Print initial state of cluster
util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
initial_state = []
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')
# Start crc16 client
for s in cluster['servers']:
c = load_generator_crc16.Crc16Client(s['id'], s['ip'], s['gateway_port'], 3000, verbose=False)
c.start()
clnts.append(c)
# Network isolation test
cmfi = fi_confmaster.ConfmasterWfFi(['ra', 'qa', 'me', 'yj', 'bj', 'mg'],
['lconn', 'slave', 'master', 'setquorum'], [True, False], 1)
for fi in cmfi:
# Block network
util.log('\n\n\n ### BLOCK NETWORK, %s ### ' % str(fi))
ret = block_network(cluster, mgmt_ip, mgmt_port)
self.assertTrue(ret, '[%s] failed to block network.' % str(fi))
for i in xrange(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
ok = False
for i in xrange(10):
isolated_states = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
state_transition_done = True
for s in isolated_states:
if s['ip'] != '127.0.0.100':
continue
if s['active_role'] != '?' or s['mgmt_role'] != 'N':
state_transition_done = False
if state_transition_done:
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state transition')
# Fault injection
try:
self.assertTrue(fi_confmaster.fi_add(fi, 1, mgmt_ip, mgmt_port),
"Confmaster command fail. fi: %s" % str(fi))
except ValueError as e:
self.fail("Confmaster command error. cmd: \"%s\", reply: \"%s\"" % (cmd, reply))
# Unblock network
util.log('\n\n\n ### UNBLOCK NETWORK, %s ### ' % str(fi))
ret = unblock_network(cluster, mgmt_ip, mgmt_port, None)
self.assertTrue(ret, '[%s] failed to unblock network.' % str(fi))
for i in xrange(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
ok = False
for i in xrange(10):
isolated_states = []
ok = util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
if ok:
break
time.sleep(1)
self.assertTrue(ok, '[%s] Fail. unstable cluster.' % str(fi))
check_cluster = False
# 'bj', 'slave'
if fi[0] == 'bj' and fi[1] == 'slave':
m, s1, s2 = util.get_mss(cluster)
ret = util.role_lconn(s1)
self.assertEqual("+OK\r\n", ret, '[%s] role lconn fail.' % str(fi))
check_cluster = True
# 'me', 'lconn'
elif fi[0] == 'me' and fi[1] == 'lconn':
m, s1, s2 = util.get_mss(cluster)
ret = util.role_lconn(m)
self.assertEqual("+OK\r\n", ret, '[%s] role lconn fail.' % str(fi))
check_cluster = True
# 'qa', 'setquorum'
elif fi[0] == 'qa' and fi[1] == 'setquorum':
m, s1, s2 = util.get_mss(cluster)
# shutdown
ret = testbase.request_to_shutdown_smr(s1)
self.assertEqual(0, ret, '[%s] failed to shutdown smr%d' % (str(fi), s1['id']))
ret = testbase.request_to_shutdown_redis(s1)
self.assertEqual(0, ret, '[%s] failed to shutdown redis%d' % (str(fi), s1['id']))
# Check quorum
q = -1
for q_cnt in xrange(20):
q = util.get_quorum(m)
if q == 1:
break
time.sleep(1)
self.assertEquals(1, q, "[%s] check quorum fail." % str(fi))
# Modify quorum
ret = util.cmd_to_smr_addr(m['ip'], m['smr_mgmt_port'], 'setquorum 0\r\n')
self.assertEqual("+OK\r\n", ret, '[%s] "setquorum 0" fail.' % str(fi))
# Check quorum
q = -1
for q_cnt in xrange(20):
q = util.get_quorum(m)
if q == 1:
break
time.sleep(1)
self.assertEquals(1, q, "[%s] check quorum fail." % str(fi))
# recovery
ret = testbase.request_to_start_smr(s1)
self.assertEqual(0, ret, '[%s] failed to start smr' % str(fi))
ret = testbase.request_to_start_redis(s1, max_try=120)
self.assertEqual(0, ret, '[%s] failed to start redis' % str(fi))
ret = testbase.wait_until_finished_to_set_up_role(s1, 11)
self.assertEqual(0, ret, '[%s] failed to role change. smr_id:%d' % (str(fi), s1['id']))
check_cluster = True
# 'setquorum'
elif fi[1] == 'setquorum':
m, s1, s2 = util.get_mss(cluster)
ret = util.cmd_to_smr_addr(s1['ip'], s1['smr_mgmt_port'], 'fi delay sleep 1 8000\r\n', timeout=20)
self.assertEqual("+OK\r\n", ret, '[%s] "fi delay sleep 1 8000" fail. ret: "%s"' % (str(fi), ret))
check_cluster = True
if check_cluster:
# Check cluster state
ok = False
for i in xrange(20):
isolated_states = []
ok = util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
if ok:
break
time.sleep(1)
self.assertTrue(ok, '[%s] Fail. unstable cluster.' % str(fi))
# Check fault injection
ok = False
for i in xrange(10):
count = fi_confmaster.fi_count(fi, mgmt_ip, mgmt_port)
if count == 0:
ok = True
break
time.sleep(0.5)
self.assertTrue(ok, "[%s] fail. failt injection had not been triggered." % str(fi))
# Shutdown cluster
ret = default_cluster.finalize( cluster )
self.assertEqual(ret, 0, '[%s] failed to TestMaintenance.finalize' % str(fi))
# Delete forwarding role
out = util.sudo('iptables -t nat -D OUTPUT -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -D PREROUTING -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
for c in clnts:
self.assertTrue(c.is_consistency(), '[%s] data consistency error!' % str(fi))
finally:
for c in clnts:
c.quit()
for c in clnts:
c.join()
def test_2_some_pgs_is_isolated(self):
util.print_frame()
out = util.sudo('iptables -L')
util.log('====================================================================')
util.log('out : %s' % out)
util.log('out.return_code : %d' % out.return_code)
util.log('out.stderr : %s' % out.stderr)
util.log('out.succeeded : %s' % out.succeeded)
# Add forwarding role (127.0.0.100 -> 127.0.0.1)
out = util.sudo('iptables -t nat -A OUTPUT -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -A PREROUTING -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_2', config.clusters)[0]
util.log(util.json_to_str(cluster))
# MGMT
mgmt_ip = cluster['servers'][0]['real_ip']
mgmt_port = cluster['servers'][0]['cm_port']
# Create cluster
ret = default_cluster.initialize_starting_up_smr_before_redis( cluster )
self.assertEqual(0, ret, 'failed to TestMaintenance.initialize')
# Place master on virtual ip address in order to cause master election.
pg_id = 0
m = util.get_server_by_role_and_pg(cluster['servers'], 'master', pg_id)
s = util.get_server_by_role_and_pg(cluster['servers'], 'slave', pg_id)
if m.has_key('ip') == True and m.has_key('real_ip') == False:
ret = util.role_change(cluster['servers'][0], cluster['cluster_name'], s['id'])
self.assertNotEquals(ret, -1, 'change %d to a master fail' % s['id'])
# Print initial state of cluster
util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
initial_state = []
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')
# Network isolation test
for cnt in range(3):
# Block network
util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % cnt)
out = util.sudo('iptables -A OUTPUT -d 127.0.0.100 -j DROP')
self.assertTrue(out.succeeded, 'add a bloking role to iptables fail. output:%s' % out)
for i in range(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
ok = False
for i in range(7):
isolated_states = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
time.sleep(1)
state_transition_done = True
for s in isolated_states:
if s['pgs_id'] == 1:
continue
if s['active_role'] != '?' or s['mgmt_role'] != 'N':
state_transition_done = False
if state_transition_done :
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state transition')
# Unblock network
util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % cnt)
out = util.sudo('iptables -D OUTPUT -d 127.0.0.100 -j DROP')
self.assertTrue(out.succeeded, 'delete a bloking role to iptables fail. output:%s' % out)
# Check cluster state
ok = False
for i in range(7):
final_state = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True)
state_consistency = True
for s in final_state:
if s['pgs_id'] == 1:
continue
if s['active_role'] != s['mgmt_role']:
state_consistency = False
if state_consistency:
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state consistency')
# Check state
self.assertNotEqual(initial_state, None, 'initial_state is None')
self.assertNotEqual(final_state, None, 'final_state is None')
initial_state = sorted(initial_state, key=lambda x: int(x['pgs_id']))
final_state = sorted(final_state, key=lambda x: int(x['pgs_id']))
for i in range(len(final_state)):
msg = 'ts (%d)%d -> (%d)%d' % (initial_state[i]['pgs_id'], initial_state[i]['active_ts'], final_state[i]['pgs_id'], final_state[i]['active_ts'])
util.log(msg)
self.assertNotEqual(initial_state[i]['active_ts'], final_state[i]['active_ts'], msg)
# Shutdown cluster
ret = default_cluster.finalize( cluster )
self.assertEqual(ret, 0, 'failed to TestMaintenance.finalize')
# Delete forwarding role (127.0.0.100 -> 127.0.0.1)
out = util.sudo('iptables -t nat -D OUTPUT -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -D PREROUTING -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
def test_4_role_change_with_failover(self):
util.print_frame()
loop_cnt = 0
while loop_cnt < 5:
util.log('')
util.log('Loop:%d' % loop_cnt)
util.log("States (before role change)")
util.log_server_state(self.cluster)
target = random.choice(self.cluster['servers'])
# bgsave
ret = util.bgsave(target)
self.assertTrue(ret, 'failed to bgsave. pgs:%d' % target['id'])
# shutdown
util.log('shutdown pgs%d(%s:%d)' % (target['id'], target['ip'], target['smr_base_port']))
ret = testbase.request_to_shutdown_smr( target )
self.assertEqual( ret, 0, 'failed to shutdown smr' )
ret = testbase.request_to_shutdown_redis( target )
self.assertEquals( ret, 0, 'failed to shutdown redis' )
r = ''
expected = 'N'
for fc_cnt in xrange(20):
r = util.get_smr_role_of_cm(target, self.leader_cm)
if r == expected:
break
time.sleep(0.5)
self.assertEquals(r, expected, 'failure detection error.')
running_servers = []
for s in self.cluster['servers']:
if s != target:
running_servers.append(s)
# Get old timestamp
old_timestamps = {}
for s in running_servers:
ts = util.get_timestamp_of_pgs(s)
old_timestamps[s['id']] = ts
# Start load generator
self.load_gen_list = {}
util.log('start load generator')
for i in range(self.max_load_generator):
ip, port = util.get_rand_gateway(self.cluster)
load_gen = load_generator.LoadGenerator(i, ip, port)
load_gen.start()
self.load_gen_list[i] = load_gen
m, s1, s2 = util.get_mss(self.cluster)
self.assertNotEqual(m, None, 'master is None.')
self.assertNotEqual(s1, None, 'slave1 is None.')
# Role change
master_id = util.role_change(self.leader_cm, self.cluster['cluster_name'], s1['id'])
self.assertNotEqual(master_id, -1, 'role_change failed')
util.log("States (after role change)")
util.log_server_state(self.cluster)
# Check - get new timestamp
new_timestamps= {}
for s in running_servers:
ts = util.get_timestamp_of_pgs( s )
new_timestamps[s['id']] = ts
# Check - compare old timestamps and new timestamps
for s in running_servers:
old_ts = old_timestamps[s['id']]
new_ts = new_timestamps[s['id']]
self.assertNotEqual(old_ts, new_ts, 'Timestamp of a running server has not changed. %d->%d' % (old_ts, new_ts))
# Check quorum
m = self.cluster['servers'][master_id]
expected = 1
ok = self.__check_quorum(m, expected)
self.assertTrue(ok, 'unexpected quorum(after role change). expected:%s' % (expected))
# recovery
util.log('recovery pgs%d(%s:%d)' % (target['id'], target['ip'], target['smr_base_port']))
ret = testbase.request_to_start_smr( target )
self.assertEqual( ret, 0, 'failed to start smr' )
util.log('start smr-replicator done')
ret = testbase.request_to_start_redis( target, 60 )
self.assertEqual( ret, 0, 'failed to start redis' )
util.log('start redis-arc done')
ret = testbase.wait_until_finished_to_set_up_role( target, max_try=300)
self.assertEquals( ret, 0, 'failed to role change. smr_id:%d' % (target['id']) )
util.log("States (after recovery)")
util.log_server_state(self.cluster)
# Check cluster state
normal_state = False
for i in xrange(20):
normal_state = util.check_cluster(self.cluster['cluster_name'], self.leader_cm['ip'], self.leader_cm['cm_port'], check_quorum=True)
if normal_state:
break
time.sleep(0.5)
self.assertTrue(normal_state, "Unstable cluster state")
# Check quorum
expected = 2
ok = self.__check_quorum(m, expected)
self.assertTrue(ok, 'unexpected quorum(after recovery). expected:%s' % (expected))
# Cheeck Consistency
util.log('stop load generator')
for i in range(self.max_load_generator):
self.load_gen_list[i].quit()
for i in range(self.max_load_generator):
self.load_gen_list[i].join()
self.assertTrue(self.load_gen_list[i].isConsistent(), 'Inconsistent after migration')
self.load_gen_list.pop(i, None)
loop_cnt += 1
return 0
def role_change_with_hanging_pgs(self, hanging_servers, running_servers, target_id, master):
util.log('hanging_servers:%s' % hanging_servers)
util.log('running_servers:%s' % running_servers)
util.log('target_id:%s' % target_id)
# Initial data
util.put_some_data(self.cluster, 3, 10)
util.log("States (before role change)")
util.log_server_state(self.cluster)
# Get old timestamp
old_timestamps = {}
for s in self.cluster['servers']:
ts = util.get_timestamp_of_pgs(s)
old_timestamps[s['id']] = ts
# hang
for s in hanging_servers:
smr = smr_mgmt.SMR(s['id'])
ret = smr.connect(s['ip'], s['smr_mgmt_port'])
self.assertEqual(ret, 0, 'failed to connect to master. %s:%d' % (s['ip'], s['smr_mgmt_port']))
util.log("PGS '%d' hang" % s['id'])
smr.write('fi delay sleep 1 13000\r\n')
reply = smr.read_until('\r\n', 1)
if reply != None and reply.find('-ERR not supported') != -1:
self.assertEqual(0, 1, 'make sure that smr has compiled with gcov option.')
smr.disconnect()
# Role change
master_id = util.role_change(self.leader_cm, self.cluster['cluster_name'], target_id)
self.assertEqual(master_id, -1, 'We expected that role_change failed, but success')
# Check rollback - check quorum
if master not in hanging_servers:
expected = 2
ok = self.__check_quorum(master, expected)
self.assertTrue(ok, 'rollback quorum fail. expected:%s' % (expected))
# Check rollback - get new timestamp
new_timestamps_in_hang = {}
for s in running_servers:
ts = util.get_timestamp_of_pgs( s )
new_timestamps_in_hang[s['id']] = ts
# Check rollback - compare old timestamps and new timestamps
for s in running_servers:
old_ts = old_timestamps[s['id']]
new_ts = new_timestamps_in_hang[s['id']]
self.assertEqual(old_ts, new_ts, 'Timestamp of a running server has changed. %d->%d' % (old_ts, new_ts))
time.sleep(16)
util.log("States (after role change)")
util.log_server_state( self.cluster )
self.load_gen_list = {}
# Start load generator
for i in range(self.max_load_generator):
ip, port = util.get_rand_gateway(self.cluster)
load_gen = load_generator.LoadGenerator(i, ip, port)
load_gen.start()
self.load_gen_list[i] = load_gen
# Check quorum
if master in hanging_servers:
m, s1, s2 = util.get_mss(self.cluster)
self.assertNotEqual(m, None, 'master is None.')
self.assertNotEqual(s1, None, 'slave1 is None.')
self.assertNotEqual(s2, None, 'slave2 is None.')
expected = 2
ok = self.__check_quorum(m, expected)
self.assertTrue(ok, 'rollback quorum fail. expected:%s' % (expected))
# Check cluster state
normal_state = False
for i in xrange(20):
normal_state = util.check_cluster(self.cluster['cluster_name'], self.leader_cm['ip'], self.leader_cm['cm_port'], check_quorum=True)
if normal_state:
break
time.sleep(0.5)
self.assertTrue(normal_state, "Unstable cluster state")
# Cheeck Consistency
for i in range(self.max_load_generator):
self.load_gen_list[i].quit()
for i in range(self.max_load_generator):
self.load_gen_list[i].join()
self.assertTrue(self.load_gen_list[i].isConsistent(), 'Inconsistent after migration')
self.load_gen_list.pop(i, None)
def test_1_role_change(self):
util.print_frame()
self.load_gen_list = {}
# Start load generator
util.log("Start load_generator")
for i in range(self.max_load_generator):
ip, port = util.get_rand_gateway(self.cluster)
load_gen = load_generator.LoadGenerator(i, ip, port)
load_gen.start()
self.load_gen_list[i] = load_gen
# Loop (smr: 3 copy)
for i in range(30):
target_server = util.get_server_by_role(self.cluster['servers'], 'slave')
self.assertNotEquals(target_server, None, 'Get slave fail.')
target = target_server['id']
print ''
util.log("(3 copy) Loop:%d, target pgs:%d" % (i, target))
# Get old timestamp
util.log_server_state( self.cluster )
old_timestamp_list = []
for s in self.cluster['servers']:
ts = util.get_timestamp_of_pgs( s )
old_timestamp_list.append(ts)
# Role change
master = util.role_change(self.leader_cm, self.cluster['cluster_name'], target)
self.assertNotEqual(master, -1, 'role_change error.')
while target == master:
target = (target + 1) % 3
util.log('Change role success.')
# Wait until role change finished
for s in self.cluster['servers']:
max_try_cnt = 20
ok = False
for try_cnt in range(max_try_cnt):
try:
pong = util.pingpong(s['ip'], s['redis_port'])
if pong != None and pong == '+PONG\r\n':
ok = True
break
except:
pass
time.sleep(0.2)
self.assertTrue(ok, 'redis state error.')
# Get new timestamp
util.log_server_state( self.cluster )
new_timestamp_list = []
for s in self.cluster['servers']:
ts = util.get_timestamp_of_pgs( s )
new_timestamp_list.append(ts)
# Compare old timestamps and new timestamps
for i in range(3):
self.assertNotEqual(old_timestamp_list[i], new_timestamp_list[i],
'Timestamp is not changed. %d->%d' % (old_timestamp_list[i], new_timestamp_list[i]))
# Cheeck Consistency
for load_gen_id, load_gen in self.load_gen_list.items():
self.assertTrue(load_gen.isConsistent(), 'Data inconsistency after role_change')
# Loop (smr: 2 copy)
self.__del_server(self.cluster['servers'][0])
servers = [self.cluster['servers'][1], self.cluster['servers'][2]]
normal_state = False
for i in xrange(20):
normal_state = util.check_cluster(self.cluster['cluster_name'], self.leader_cm['ip'], self.leader_cm['cm_port'], check_quorum=True)
if normal_state:
break
time.sleep(0.5)
self.assertTrue(normal_state, "Unstable cluster state")
for i in range(30):
print ''
util.log("(2 copy) Loop:%d, target pgs:%d" % (i, target))
s = util.get_server_by_role(servers, 'slave')
target = s['id']
# Get old timestamp
util.log_server_state( self.cluster )
old_timestamp_list = []
for s in servers:
ts = util.get_timestamp_of_pgs( s )
old_timestamp_list.append(ts)
# Role change
master = util.role_change(self.leader_cm, self.cluster['cluster_name'], target)
self.assertNotEqual(master, -1, 'role_change error.')
while target == master:
target = (target) % 2 + 1
util.log('Change role success.')
# Wait until role change finished
for s in servers:
max_try_cnt = 20
ok = False
for try_cnt in range(max_try_cnt):
pong = util.pingpong(s['ip'], s['redis_port'])
if pong != None and pong == '+PONG\r\n':
ok = True
break
time.sleep(0.1)
self.assertTrue(ok, 'redis state error.')
# Get new timestamp
util.log_server_state( self.cluster )
new_timestamp_list = []
for s in servers:
ts = util.get_timestamp_of_pgs( s )
new_timestamp_list.append(ts)
# Compare old timestamps and new timestamps
for i in range(2):
self.assertNotEqual(old_timestamp_list[i], new_timestamp_list[i],
'Timestamp is not changed. %d->%d' % (old_timestamp_list[i], new_timestamp_list[i]))
# Cheeck Consistency
for load_gen_id, load_gen in self.load_gen_list.items():
self.assertTrue(load_gen.isConsistent(), 'Data inconsistency after role_change')
def test_6_repeat_isolation_and_no_opinion_linepay(self):
util.print_frame()
out = util.sudo('iptables -L')
util.log('====================================================================')
util.log('out : %s' % out)
util.log('out.return_code : %d' % out.return_code)
util.log('out.stderr : %s' % out.stderr)
util.log('out.succeeded : %s' % out.succeeded)
# Add forwarding role
out = util.sudo('iptables -t nat -A OUTPUT -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -A PREROUTING -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -A OUTPUT -d 127.0.0.101 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -A PREROUTING -d 127.0.0.101 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -A OUTPUT -d 127.0.0.102 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -A PREROUTING -d 127.0.0.102 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
cluster_name = 'no_opinion'
cluster = filter(lambda x: x['cluster_name'] == cluster_name, config.clusters)[0]
util.log(util.json_to_str(cluster))
self.leader_cm = cluster['servers'][0]
# MGMT
mgmt_ip = cluster['servers'][0]['real_ip']
mgmt_port = cluster['servers'][0]['cm_port']
# Create cluster
ret = default_cluster.initialize_starting_up_smr_before_redis( cluster )
self.assertEqual(0, ret, 'failed to TestMaintenance.initialize')
# Print initial state of cluster
util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
initial_state = []
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')
# Network isolation test
loop_cnt = 0
while (loop_cnt < 20):
loop_cnt += 1
# Block network
util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % loop_cnt)
out = util.sudo('iptables -A OUTPUT -d 127.0.0.102 -j DROP')
self.assertTrue(out.succeeded, 'add a bloking role to iptables fail. output:%s' % out)
for i in range(1):
util.log('waiting... %d' % (i + 1))
time.sleep(0.1)
out = util.sudo('iptables -A OUTPUT -d 127.0.0.100 -j DROP')
self.assertTrue(out.succeeded, 'add a bloking role to iptables fail. output:%s' % out)
for i in range(3):
util.log('waiting... %d' % (i + 1))
time.sleep(1.2)
out = util.sudo('iptables -A OUTPUT -d 127.0.0.101 -j DROP')
self.assertTrue(out.succeeded, 'add a bloking role to iptables fail. output:%s' % out)
for i in range(1):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Unblock network
util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % loop_cnt)
out = util.sudo('iptables -D OUTPUT -d 127.0.0.102 -j DROP')
self.assertTrue(out.succeeded, 'delete a bloking role to iptables fail. output:%s' % out)
for i in range(0):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
out = util.sudo('iptables -D OUTPUT -d 127.0.0.100 -j DROP')
self.assertTrue(out.succeeded, 'delete a bloking role to iptables fail. output:%s' % out)
for i in range(0):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
out = util.sudo('iptables -D OUTPUT -d 127.0.0.101 -j DROP')
self.assertTrue(out.succeeded, 'delete a bloking role to iptables fail. output:%s' % out)
for i in range(3):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Print state of cluster
util.log('\n ### STATE OF CLUSTER ### ')
cluster_state = False
for i in range(10):
cluster_state = util.check_cluster(cluster_name, mgmt_ip, mgmt_port, initial_state, check_quorum=True)
if cluster_state == True:
break
else:
time.sleep(1)
self.assertTrue(cluster_state, 'failed to check cluster state')
all_in_f = True
for s in cluster['servers']:
if checkLastState(mgmt_ip, s['cm_port'], cluster_name, 0, 'F') == False:
all_in_f = False
break
self.assertFalse(all_in_f, 'PGS0`s last state remains in F')
# Shutdown cluster
ret = default_cluster.finalize( cluster )
self.assertEqual(ret, 0, 'failed to TestMaintenance.finalize')
# Delete forwarding role
out = util.sudo('iptables -t nat -D OUTPUT -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -D PREROUTING -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -D OUTPUT -d 127.0.0.101 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -D PREROUTING -d 127.0.0.101 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -D OUTPUT -d 127.0.0.102 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
out = util.sudo('iptables -t nat -D PREROUTING -d 127.0.0.102 -p tcp -j DNAT --to-destination 127.0.0.1')
self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
def consistent_after_failover(self):
max = 10000
wait_count = 15
key = 'caf'
# get master, slave1, and slave2
master, slave1, slave2 = self.get_mss()
# set value
ip, port = util.get_rand_gateway(self.cluster)
gw = gateway_mgmt.Gateway(ip)
gw.connect(ip, port)
for i in range(0, max):
cmd = 'set %s%d %d\r\n' % (key, i, i)
gw.write(cmd)
res = gw.read_until('\r\n')
self.assertEquals(res, '+OK\r\n')
time.sleep(5)
# shutdown
servers = [master, slave1, slave2]
for server in servers:
util.log('before shutdown pgs%d' % server['id'])
for s in servers:
self.getseq_log(s)
ret = testbase.request_to_shutdown_smr(server)
self.assertEqual(
ret, 0, 'failed to shutdown smr, server:%d' % server['id'])
ret = testbase.request_to_shutdown_redis(server)
self.assertEquals(ret, 0, 'failed to shutdown redis')
time.sleep(5)
# check state F
for server in servers:
state = self.get_expected_smr_state(server, 'F')
self.assertEquals('F', state,
'server%d - state:%s' % (server['id'], state))
# recovery
for server in servers:
ret = testbase.request_to_start_smr(server)
self.assertEqual(ret, 0,
'failed to start smr, server:%d' % server['id'])
ret = testbase.request_to_start_redis(server, False)
self.assertEqual(ret, 0,
'failed to start redis, server:%d' % server['id'])
util.log('after restart pgs%d' % server['id'])
for s in servers:
self.getseq_log(s)
time.sleep(5)
# wait for master election
for i in xrange(10):
ret = util.check_cluster(self.cluster['cluster_name'],
self.leader_cm['ip'],
self.leader_cm['cm_port'])
if ret:
break
time.sleep(1)
# check state
for server in servers:
ret = testbase.wait_until_finished_to_set_up_role(
server, wait_count)
self.assertEquals(
ret, 0, 'failed to role change. server:%d' % (server['id']))
state = self.get_expected_smr_state(server, 'N')
role = util.get_role_of_server(server)
self.assertEquals(
'N', state,
'server%d - state:%s, role:%s' % (server['id'], state, role))
the_number_of_master = 0
the_number_of_slave = 0
for server in servers:
role = util.get_role_of_server(server)
if role == c.ROLE_MASTER:
the_number_of_master = the_number_of_master + 1
elif role == c.ROLE_SLAVE:
the_number_of_slave = the_number_of_slave + 1
self.assertTrue(
1 == the_number_of_master and 2 == the_number_of_slave,
'failed to set roles, the number of master:%d, the number of slave:%d'
% (the_number_of_master, the_number_of_slave))
# get master, slave1, and slave2
master, slave1, slave2 = self.get_mss()
# connect to a master`s redis and set data
redis = redis_mgmt.Redis(master['id'])
ret = redis.connect(master['ip'], master['redis_port'])
self.assertEquals(
ret, 0, 'failed to connect to redis, server:%d' % master['id'])
for i in range(max, max * 2):
cmd = 'set %s%d %d\r\n' % (key, i, i)
redis.write(cmd)
res = redis.read_until('\r\n')
self.assertEquals(
res, '+OK\r\n',
'failed to get response, server:%d' % master['id'])
redis.disconnect()
# check slaves`s data
slaves = [slave1, slave2]
for slave in slaves:
slave_redis = redis_mgmt.Redis(slave['id'])
ret = slave_redis.connect(slave['ip'], slave['redis_port'])
self.assertEquals(
ret, 0, 'failed to connect to redis, server:%d' % slave['id'])
for i in range(0, max * 2):
cmd = 'get %s%d\r\n' % (key, i)
slave_redis.write(cmd)
trash = slave_redis.read_until('\r\n')
res = slave_redis.read_until('\r\n')
self.assertEquals(
res, '%d\r\n' % i,
'inconsistent, server:%d, expected %d but %s' %
(slave['id'], i, res))
slave_redis.disconnect()
def pgs_add_and_del(self, upgrade_server, type):
util.print_frame()
util.log('[start] add and del pgs%d. type:%s' %
(upgrade_server['id'], type))
util.log_server_state(self.cluster)
# start load generator
load_gen_list = {}
for i in range(len(self.cluster['servers'])):
server = self.cluster['servers'][i]
load_gen = load_generator.LoadGenerator(server['id'], server['ip'],
server['gateway_port'])
load_gen.start()
load_gen_list[i] = load_gen
# detach pgs from cluster
cmd = 'pgs_leave %s %d\r\n' % (upgrade_server['cluster_name'],
upgrade_server['id'])
ret = util.cm_command(self.leader_cm['ip'], self.leader_cm['cm_port'],
cmd)
jobj = json.loads(ret)
self.assertEqual(
jobj['msg'], '+OK',
'failed : cmd="%s", reply="%s"' % (cmd[:-2], ret[:-2]))
util.log('succeeded : cmd="%s", reply="%s"' % (cmd[:-2], ret[:-2]))
# set new values
ip, port = util.get_rand_gateway(self.cluster)
gw = gateway_mgmt.Gateway('0')
gw.connect(ip, port)
for i in range(0, 50):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
gw.write(cmd)
res = gw.read_until('\r\n')
self.assertEqual(
res, '+OK\r\n',
'failed to set values to gw(%s:%d). cmd:%s, res:%s' %
(ip, port, cmd[:-2], res[:-2]))
# attach pgs to cluster
cmd = 'pgs_join %s %d\r\n' % (upgrade_server['cluster_name'],
upgrade_server['id'])
ret = util.cm_command(self.leader_cm['ip'], self.leader_cm['cm_port'],
cmd)
jobj = json.loads(ret)
self.assertEqual(jobj['msg'], '+OK',
'failed : cmd="%s", reply="%s"' % (cmd[:-2], ret))
util.log('succeeded : cmd="%s", reply="%s"' % (cmd[:-2], ret[:-2]))
time.sleep(3)
stable = False
for i in xrange(20):
stable = util.check_cluster(self.cluster['cluster_name'],
self.leader_cm['ip'],
self.leader_cm['cm_port'])
if stable:
break
time.sleep(0.5)
self.assertTrue(stable, 'Unstable cluster')
# check new values
redis = redis_mgmt.Redis(upgrade_server['id'])
ret = redis.connect(upgrade_server['ip'], upgrade_server['redis_port'])
self.assertEquals(
ret, 0, 'failed : connect to smr%d(%s:%d)' %
(upgrade_server['id'], upgrade_server['ip'],
upgrade_server['redis_port']))
for i in range(0, 50):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis.write(cmd)
redis.read_until('\r\n')
res = redis.read_until('\r\n')
self.assertEqual(
res, '%d\r\n' % i,
'failed to get values from redis%d. %s != %d' %
(upgrade_server['id'], res, i))
util.log('succeeded : check values with get operations on pgs%d.' %
(upgrade_server['id']))
# shutdown load generators
for i in range(len(load_gen_list)):
load_gen_list[i].quit()
load_gen_list[i].join()
util.log_server_state(self.cluster)
return 0
def test_3_some_pgs_is_isolated_2copy(self):
util.print_frame()
out = util.sudo('iptables -L')
util.log('====================================================================')
util.log('out : %s' % out)
util.log('out.return_code : %d' % out.return_code)
util.log('out.stderr : %s' % out.stderr)
util.log('out.succeeded : %s' % out.succeeded)
# Add forwarding role (127.0.0.100 -> 127.0.0.1)
self.assertTrue(util.iptables_redirect('A', '127.0.0.100', '127.0.0.1'), 'add a forwarding role to iptables fail.')
cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_1_2copy', config.clusters)[0]
util.log(util.json_to_str(cluster))
# MGMT
mgmt_ip = cluster['servers'][0]['ip']
mgmt_port = cluster['servers'][0]['cm_port']
# Create cluster
conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster )
self.assertIsNotNone(conf_checker, 'failed to initialize cluster')
# Place master on real ip address
for pg_id in [0, 1]:
m = util.get_server_by_role_and_pg(cluster['servers'], 'master', pg_id)
s = util.get_server_by_role_and_pg(cluster['servers'], 'slave', pg_id)
if m.has_key('ip') and m.has_key('real_ip'):
if m['ip'] != m['real_ip']:
ret = util.role_change(cluster['servers'][0], cluster['cluster_name'], s['id'])
self.assertNotEquals(ret, -1, 'change %d to a master fail' % s['id'])
# Print initial state of cluster
util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
initial_state = []
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')
# Network isolation test
for cnt in range(3):
# Block network
util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % cnt)
self.assertTrue(util.iptables_drop('A', '127.0.0.100'), 'add a bloking role to iptables fail.')
for i in range(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
ok = False
for i in range(7):
isolated_states = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
time.sleep(1)
state_transition_done = True
for s in isolated_states:
if s['pgs_id'] == 0 or s['pgs_id'] == 1:
continue
if s['active_role'] != 'M' or s['mgmt_role'] != 'M':
state_transition_done = False
if s['quorum'] != 0:
state_transition_done = False
if state_transition_done:
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state transition')
# Unblock network
util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % cnt)
self.assertTrue(util.iptables_drop('D', '127.0.0.100'), 'delete a bloking role to iptables fail.')
# Check cluster state
ok = False
for i in range(7):
final_state = []
if util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True) == False:
time.sleep(1)
continue
state_consistency = True
for s in final_state:
if s['pgs_id'] == 1:
continue
if is_pgs_normal(s) == False:
state_consistency = False
if state_consistency:
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state consistency')
# Check state
self.assertNotEqual(initial_state, None, 'initial_state is None')
self.assertNotEqual(final_state, None, 'final_state is None')
# Delete forwarding role (127.0.0.100 -> 127.0.0.1)
self.assertTrue(util.iptables_redirect('D', '127.0.0.100', '127.0.0.1'), 'delete a forwarding role to iptables fail.')
self.assertTrue(conf_checker.final_check())
# Shutdown cluster
default_cluster.finalize(cluster)
def master_and_slave_hang(self):
# get gateway info
ip, port = util.get_rand_gateway(self.cluster)
gw = gateway_mgmt.Gateway(self.cluster['servers'][0]['id'])
ret = gw.connect(ip, port)
self.assertEqual(ret, 0,
'failed to connect to gateway, %s:%d' % (ip, port))
# set values
for i in range(0, 10000):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
gw.write(cmd)
res = gw.read_until('\r\n')
self.assertEqual(
res, '+OK\r\n',
'failed to set values. cmd:%s, res:%s' % (cmd, res))
# get master, slave1, slave2
if len(self.cluster['servers']) == 3:
m, s1, s2 = util.get_mss(self.cluster)
self.assertNotEqual(m, None, 'master is None.')
self.assertNotEqual(s1, None, 'slave1 is None.')
self.assertNotEqual(s2, None, 'slave2 is None.')
else:
m, s1 = util.get_mss(self.cluster)
self.assertNotEqual(m, None, 'master is None.')
self.assertNotEqual(s1, None, 'slave1 is None.')
util.log('server state before hang')
util.log_server_state(self.cluster)
# hang
smr_master = smr_mgmt.SMR(m['id'])
ret = smr_master.connect(m['ip'], m['smr_mgmt_port'])
self.assertEqual(
ret, 0, 'failed to connect to master. %s:%d' %
(m['ip'], m['smr_mgmt_port']))
smr_slave = smr_mgmt.SMR(s1['id'])
ret = smr_slave.connect(s1['ip'], s1['smr_mgmt_port'])
self.assertEqual(
ret, 0, 'failed to connect to master. %s:%d' %
(s1['ip'], s1['smr_mgmt_port']))
smr_master.write('fi delay sleep 1 10000\r\n')
reply = smr_master.read_until('\r\n', 1)
if reply != None and reply.find('-ERR not supported') != -1:
self.assertEqual(
0, 1, 'make sure that smr has compiled with gcov option.')
smr_slave.write('fi delay sleep 1 10000\r\n')
util.log('server state transition after hang')
util.log_server_state(self.cluster)
time.sleep(5)
if len(self.cluster['servers']) == 3:
# wait for forced master election
success = True
for i in range(15):
state = []
util.check_cluster(self.cluster['cluster_name'],
self.leader_cm['ip'],
self.leader_cm['cm_port'], state)
s2_state = filter(lambda s: s['pgs_id'] == s2['id'], state)[0]
role = s2_state['active_role']
if role != 'M':
success = False
break
time.sleep(1)
util.log('')
util.log('It expects that pgs2 is a master. PG.COPY: 3, PG.Q: 2')
util.log('')
util.log_server_state(self.cluster)
self.assertEqual(success, True, 'failed to check copy-quorum')
ok = False
for i in xrange(10):
ok = util.check_cluster(self.cluster['cluster_name'],
self.leader_cm['ip'],
self.leader_cm['cm_port'])
if ok:
break
self.assertTrue(ok, 'Cluster state is not normal!')
redis2 = redis_mgmt.Redis(s2['id'])
ret = redis2.connect(s2['ip'], s2['redis_port'])
self.assertEqual(
ret, 0, 'failed to connect to redis(%s:%d).' %
(s2['ip'], s2['redis_port']))
# set new values
for i in range(10000, 20000):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
redis2.write(cmd)
res = redis2.read_until('\r\n')
self.assertEqual(
res, '+OK\r\n',
'failed to set values to redis1. cmd:%s, res:%s' %
(cmd[:-2], res))
util.log('server state transition after hang')
util.log_server_state(self.cluster)
redis0 = redis_mgmt.Redis(m['id'])
ret = redis0.connect(m['ip'], m['redis_port'])
self.assertEqual(
ret, 0,
'failed to connect to redis0(%s:%d).' % (m['ip'], m['redis_port']))
redis1 = redis_mgmt.Redis(s1['id'])
ret = redis1.connect(s1['ip'], s1['redis_port'])
self.assertEqual(
ret, 0, 'failed to connect to redis1(%s:%d).' %
(s1['ip'], s1['redis_port']))
if len(self.cluster['servers']) != 3:
# set new values
for i in range(10000, 20000):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
redis0.write(cmd)
res = redis0.read_until('\r\n')
self.assertEqual(
res, '+OK\r\n',
'failed to set values to redis0. cmd:%s, res:%s' %
(cmd[:-2], res))
# check new values (m)
for i in range(10000, 20000):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis0.write(cmd)
redis0.read_until('\r\n')
res = redis0.read_until('\r\n')
self.assertEqual(
res, '%d\r\n' % i,
'failed to get values from redis(id:%d). %s != %d' %
(m['id'], res, i))
# check new values (s1)
for i in range(10000, 20000):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis1.write(cmd)
redis1.read_until('\r\n')
res = redis1.read_until('\r\n')
self.assertEqual(
res, '%d\r\n' % i,
'failed to get values from redis(id:%d). %s != %d' %
(s1['id'], res[:-2], i))
# check consistency
self.assertEqual(
util.check_cluster(self.cluster['cluster_name'], self.mgmt_ip,
self.mgmt_port), True, 'role consistency fail')
return 0
def test_4_mgmt_is_isolated_with_red_failover(self):
util.print_frame()
util.iptables_print_list()
cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_1', config.clusters)[0]
util.log(util.json_to_str(cluster))
self.leader_cm = cluster['servers'][0]
# MGMT
mgmt_ip = cluster['servers'][0]['real_ip']
mgmt_port = cluster['servers'][0]['cm_port']
# Create cluster
conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster )
self.assertIsNotNone(conf_checker, 'failed to initialize cluster')
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port)
# Master must be the first pgs, cluster['servers'][0].
to_be_master = cluster['servers'][0]
m = util.get_server_by_role_and_pg(cluster['servers'], 'master', to_be_master['pg_id'])
master_id = -1
if m['id'] != to_be_master['id']:
try_cnt = 0
while master_id != to_be_master['id'] and try_cnt < 20:
master_id = util.role_change(cluster['servers'][0], cluster['cluster_name'], to_be_master['id'])
try_cnt += 1
time.sleep(1)
self.assertEquals(master_id, to_be_master['id'], 'change %d to a master fail' % to_be_master['id'])
# Print initial state of cluster
util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
initial_state = []
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')
# Set SMR option (slave_idle_timeout)
util.log('\n\n\n ### Set SMR option ###')
for s in cluster['servers']:
t = telnet.Telnet('SMR%d' % s['id'])
self.assertEqual(t.connect(s['ip'], s['smr_mgmt_port']), 0,
'Failed to connect to smr. ADDR=%s:%d' % (s['ip'], s['smr_mgmt_port']))
cmd = 'confset slave_idle_timeout_msec 18000'
util.log('[%s:%d] >> %s' % (s['ip'], s['smr_mgmt_port'], cmd))
t.write('confset slave_idle_timeout_msec 18000\r\n')
reply = t.read_until('\r\n').strip()
util.log('[%s:%d] << %s' % (s['ip'], s['smr_mgmt_port'], reply))
self.assertEqual(reply, '+OK', 'Failed to set slave_idle_timeout, REPLY=%s' % reply)
# Network isolation test
for loop_cnt in range(3):
# Block network
util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % loop_cnt)
for s in cluster['servers']:
self.assertTrue(util.iptables_drop('A', '127.0.0.100', s['smr_mgmt_port']), 'add a bloking role to iptables fail.')
for i in range(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
ok = False
for i in range(7):
isolated_states = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
time.sleep(1)
state_transition_done = True
for s in isolated_states:
if s['ip'] != '127.0.0.100':
continue
if s['active_role'] != '?' or s['mgmt_role'] != 'N':
state_transition_done = False
if state_transition_done :
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state transition')
pgs_list = util.get_pgs_info_list(mgmt_ip, mgmt_port, cluster)
reds = filter(lambda x: x['color'] == 'RED', pgs_list)
# Shutdown
server = cluster['servers'][random.choice(reds)['pgs_id']]
util.log( 'shutdown pgs%d while hanging.' % server['id'] )
ret = testbase.request_to_shutdown_smr( server )
self.assertEqual( ret, 0, 'failed to shutdown smr. id:%d' % server['id'] )
ret = testbase.request_to_shutdown_redis( server )
self.assertEqual( ret, 0, 'failed to shutdown redis. id:%d' % server['id'] )
# Check state F
max_try = 20
expected = 'F'
for i in range( 0, max_try):
util.log('MGMT_IP:%s, MGMT_PORT:%d' % (mgmt_ip, mgmt_port))
state = util._get_smr_state( server['id'], cluster['cluster_name'], mgmt_ip, mgmt_port )
if expected == state:
break;
time.sleep( 1 )
self.assertEqual( expected , state,
'server%d - state:%s, expected:%s' % (server['id'], state, expected) )
util.log( 'succeeded : pgs%d state changed to F.' % server['id'] )
# Unblock network
for s in cluster['servers']:
self.assertTrue(util.iptables_drop('D', '127.0.0.100', s['smr_mgmt_port']), 'delete a bloking role to iptables fail.')
# Check cluster state
ok = False
for i in range(10):
final_state = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True)
state_consistency = True
for s in final_state:
if s['pgs_id'] == server['id']:
continue
if is_pgs_normal(s) == False:
state_consistency = False
if state_consistency:
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state consistency')
# Recovery
util.log( 'restart pgs%d.' % server['id'] )
ret = testbase.request_to_start_smr( server )
self.assertEqual( ret, 0, 'failed to start smr. id:%d' % server['id'] )
ret = testbase.request_to_start_redis( server )
self.assertEqual( ret, 0, 'failed to start redis. id:%d' % server['id'] )
wait_count = 20
ret = testbase.wait_until_finished_to_set_up_role( server, wait_count )
self.assertEqual( ret, 0, 'failed to role change. smr_id:%d' % (server['id']) )
redis = redis_mgmt.Redis( server['id'] )
ret = redis.connect( server['ip'], server['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis' )
ok = False
for i in xrange(5):
ok = util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, check_quorum=True)
if ok:
break
else:
time.sleep(1)
self.assertTrue(ok, 'failed to check cluster state')
# Reset SMR option (slave_idle_timeout)
t = telnet.Telnet('SMR%d' % server['id'])
self.assertEqual(t.connect(server['ip'], server['smr_mgmt_port']), 0,
'Failed to connect to smr. ADDR=%s:%d' % (server['ip'], server['smr_mgmt_port']))
cmd = 'confset slave_idle_timeout_msec 18000'
util.log('[%s:%d] >> %s' % (server['ip'], server['smr_mgmt_port'], cmd))
t.write('confset slave_idle_timeout_msec 18000\r\n')
reply = t.read_until('\r\n').strip()
util.log('[%s:%d] << %s' % (server['ip'], server['smr_mgmt_port'], reply))
self.assertEqual(reply, '+OK', 'Failed to set slave_idle_timeout, REPLY=%s' % reply)
# Check state
self.assertNotEqual(initial_state, None, 'initial_state is None')
self.assertNotEqual(final_state, None, 'final_state is None')
initial_state = sorted(initial_state, key=lambda x: int(x['pgs_id']))
final_state = sorted(final_state, key=lambda x: int(x['pgs_id']))
for i in range(len(final_state)):
msg = 'ts (%d)%d -> (%d)%d' % (initial_state[i]['pgs_id'], initial_state[i]['active_ts'], final_state[i]['pgs_id'], final_state[i]['active_ts'])
util.log(msg)
if initial_state[i]['pgs_id'] == 1:
self.assertNotEqual(initial_state[i]['active_ts'], final_state[i]['active_ts'], msg)
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, check_quorum=True), 'failed to check cluster state')
self.assertTrue(conf_checker.final_check())
# Shutdown cluster
default_cluster.finalize(cluster)
def test_two_slaves_hang(self):
util.print_frame()
self.setup_test_cluster(self.cluster_3copy)
# get gateway info
ip, port = util.get_rand_gateway(self.cluster)
gw = gateway_mgmt.Gateway(self.cluster['servers'][0]['id'])
ret = gw.connect(ip, port)
self.assertEqual(ret, 0,
'failed to connect to gateway, %s:%d' % (ip, port))
# set values
for i in range(0, 10000):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
gw.write(cmd)
res = gw.read_until('\r\n')
self.assertEqual(
res, '+OK\r\n',
'failed to set values. cmd:%s, res:%s' % (cmd, res))
# get master, slave1, slave2
m, s1, s2 = util.get_mss(self.cluster)
self.assertNotEqual(m, None, 'master is None.')
self.assertNotEqual(s1, None, 'slave1 is None.')
self.assertNotEqual(s2, None, 'slave2 is None.')
util.log('server state before hang')
util.log_server_state(self.cluster)
# timestamp before hang
ts_before1 = util.get_timestamp_of_pgs(s1)
self.assertNotEqual(
ts_before1, -1,
'failed to get a timestamp of pgs(%d), ts_before:%d' %
(s1['id'], ts_before1))
ts_before2 = util.get_timestamp_of_pgs(s2)
self.assertNotEqual(
ts_before2, -1,
'failed to get a timestamp of pgs(%d), ts_before:%d' %
(s2['id'], ts_before2))
# hang
smr1 = smr_mgmt.SMR(s1['id'])
ret = smr1.connect(s1['ip'], s1['smr_mgmt_port'])
self.assertEqual(
ret, 0, 'failed to connect to master. %s:%d' %
(s1['ip'], s1['smr_mgmt_port']))
smr2 = smr_mgmt.SMR(s2['id'])
ret = smr2.connect(s2['ip'], s2['smr_mgmt_port'])
self.assertEqual(
ret, 0, 'failed to connect to master. %s:%d' %
(s1['ip'], s1['smr_mgmt_port']))
smr1.write('fi delay sleep 1 8000\r\n')
reply = smr1.read_until('\r\n', 1)
if reply != None and reply.find('-ERR not supported') != -1:
self.assertEqual(
0, 1, 'make sure that smr has compiled with gcov option.')
smr2.write('fi delay sleep 1 8000\r\n')
time.sleep(7)
success = False
for i in xrange(20):
ret = util.check_cluster(self.cluster['cluster_name'],
self.mgmt_ip,
self.mgmt_port,
check_quorum=True)
if ret:
success = True
break
time.sleep(1)
self.assertEqual(success, True, 'unstable cluster')
# get master, slave1, slave2
m, s1, s2 = util.get_mss(self.cluster)
redis1 = redis_mgmt.Redis(s1['id'])
ret = redis1.connect(s1['ip'], s1['redis_port'])
self.assertEqual(
ret, 0, 'failed to connect to redis(%s:%d).' %
(s1['ip'], s1['redis_port']))
redis2 = redis_mgmt.Redis(s2['id'])
ret = redis2.connect(s2['ip'], s2['redis_port'])
self.assertEqual(
ret, 0, 'failed to connect to redis(%s:%d).' %
(s2['ip'], s2['redis_port']))
# set new values
for i in range(10000, 20000):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
redis1.write(cmd)
res = redis1.read_until('\r\n')
self.assertEqual(
res, '+OK\r\n',
'failed to set values to redis1. cmd:%s, res:%s' %
(cmd[:-2], res))
# check new values
for i in range(10000, 20000):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis2.write(cmd)
redis2.read_until('\r\n')
res = redis2.read_until('\r\n')
self.assertEqual(
res, '%d\r\n' % i,
'failed to get values from redis2. %s != %d' % (res, i))
# check consistency
self.assertEqual(
util.check_cluster(self.cluster['cluster_name'], self.mgmt_ip,
self.mgmt_port), True, 'role consistency fail')
return 0
def test_5_mgmt_is_isolated_with_lconn(self):
util.print_frame()
util.iptables_print_list()
cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_1', config.clusters)[0]
util.log(util.json_to_str(cluster))
self.leader_cm = cluster['servers'][0]
# MGMT
mgmt_ip = cluster['servers'][0]['real_ip']
mgmt_port = cluster['servers'][0]['cm_port']
# Create cluster
conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster )
self.assertIsNotNone(conf_checker, 'failed to initialize cluster')
# Print initial state of cluster
util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
initial_state = []
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')
# Set SMR option (slave_idle_timeout)
util.log('\n\n\n ### Set SMR option ###')
for s in cluster['servers']:
t = telnet.Telnet('SMR%d' % s['id'])
self.assertEqual(t.connect(s['ip'], s['smr_mgmt_port']), 0,
'Failed to connect to smr. ADDR=%s:%d' % (s['ip'], s['smr_mgmt_port']))
cmd = 'confset slave_idle_timeout_msec 18000'
util.log('[%s:%d] >> %s' % (s['ip'], s['smr_mgmt_port'], cmd))
t.write('confset slave_idle_timeout_msec 18000\r\n')
reply = t.read_until('\r\n').strip()
util.log('[%s:%d] << %s' % (s['ip'], s['smr_mgmt_port'], reply))
self.assertEqual(reply, '+OK', 'Failed to set slave_idle_timeout, REPLY=%s' % reply)
# Network isolation test
for loop_cnt in range(3):
# Get master
master = util.get_server_by_role_and_pg( cluster['servers'], 'master', 0 )
first_slave = None
for s in cluster['servers']:
if s == master:
continue
# Skip non-virtual host
if s.has_key('real_ip') == False:
continue
if first_slave == None:
first_slave = s
# 'role lconn'
util.log( 'role lconn pgs%d while hanging.' % s['id'] )
ret = util.role_lconn_addr( s['real_ip'], s['smr_mgmt_port'] )
self.assertEqual( ret, '+OK\r\n', 'role lconn failed. reply="%s"' % (ret[:-2]) )
util.log( 'succeeded : cmd="role lconn", reply="%s"' % (ret[:-2]) )
time.sleep(0.5)
# Block network
util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % loop_cnt)
self.assertTrue(util.iptables_drop('A', '127.0.0.100', first_slave['smr_mgmt_port']), 'add a bloking role to iptables fail.')
for i in range(6):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
ok = False
for i in range(10):
isolated_states = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
time.sleep(1)
state_transition_done = True
for s in isolated_states:
if s['pgs_id'] != first_slave['id']:
continue
if s['active_role'] != '?' or s['mgmt_role'] != 'N':
state_transition_done = False
if state_transition_done :
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state transition')
# Unblock network
self.assertTrue(util.iptables_drop('D', '127.0.0.100', first_slave['smr_mgmt_port']), 'delete a bloking role to iptables fail.')
# Check cluster state
ok = False
for i in range(7):
final_state = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True)
state_consistency = True
for s in final_state:
if s['pgs_id'] == 1:
continue
if is_pgs_normal(s) == False:
state_consistency = False
if state_consistency:
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state consistency')
ok = False
for i in xrange(5):
ok = util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, check_quorum=True)
if ok:
break
else:
time.sleep(1)
self.assertTrue(ok, 'failed to check cluster state')
# Check state
self.assertNotEqual(initial_state, None, 'initial_state is None')
self.assertNotEqual(final_state, None, 'final_state is None')
initial_state = sorted(initial_state, key=lambda x: int(x['pgs_id']))
final_state = sorted(final_state, key=lambda x: int(x['pgs_id']))
for i in range(len(final_state)):
msg = 'ts (%d)%d -> (%d)%d' % (initial_state[i]['pgs_id'], initial_state[i]['active_ts'], final_state[i]['pgs_id'], final_state[i]['active_ts'])
util.log(msg)
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, check_quorum=True), 'failed to check cluster state')
self.assertTrue(conf_checker.final_check())
# Shutdown cluster
default_cluster.finalize(cluster)
def test_all_pgs_hang(self):
util.print_frame()
self.setup_test_cluster(self.cluster_3copy)
# get gateway info
ip, port = util.get_rand_gateway(self.cluster)
gw = gateway_mgmt.Gateway(self.cluster['servers'][0]['id'])
ret = gw.connect(ip, port)
self.assertEqual(ret, 0,
'failed to connect to gateway, %s:%d' % (ip, port))
# set values
for i in range(0, 10000):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
gw.write(cmd)
res = gw.read_until('\r\n')
self.assertEqual(
res, '+OK\r\n',
'failed to set values. cmd:%s, res:%s' % (cmd, res))
# get master, slave1, slave2
m, s1, s2 = util.get_mss(self.cluster)
self.assertNotEqual(m, None, 'master is None.')
self.assertNotEqual(s1, None, 'slave1 is None.')
self.assertNotEqual(s2, None, 'slave2 is None.')
util.log('server state before hang')
util.log_server_state(self.cluster)
# hang
smr_master = smr_mgmt.SMR(m['id'])
ret = smr_master.connect(m['ip'], m['smr_mgmt_port'])
self.assertEqual(
ret, 0, 'failed to connect to master. %s:%d' %
(m['ip'], m['smr_mgmt_port']))
smr_slave1 = smr_mgmt.SMR(s1['id'])
ret = smr_slave1.connect(s1['ip'], s1['smr_mgmt_port'])
self.assertEqual(
ret, 0, 'failed to connect to master. %s:%d' %
(s1['ip'], s1['smr_mgmt_port']))
smr_slave2 = smr_mgmt.SMR(s2['id'])
ret = smr_slave2.connect(s2['ip'], s2['smr_mgmt_port'])
self.assertEqual(
ret, 0, 'failed to connect to master. %s:%d' %
(s2['ip'], s2['smr_mgmt_port']))
m_ts = util.get_timestamp_of_pgs(m)
s1_ts = util.get_timestamp_of_pgs(s1)
s2_ts = util.get_timestamp_of_pgs(s2)
smr_master.write('fi delay sleep 1 8000\r\n')
reply = smr_master.read_until('\r\n', 1)
if reply != None and reply.find('-ERR not supported') != -1:
self.assertEqual(
0, 1, 'make sure that smr has compiled with gcov option.')
smr_slave1.write('fi delay sleep 1 8000\r\n')
smr_slave2.write('fi delay sleep 1 8000\r\n')
time.sleep(10)
# check consistency
ok = False
for try_cnt in xrange(20):
ok = util.check_cluster(self.cluster['cluster_name'], self.mgmt_ip,
self.mgmt_port)
if ok:
break
time.sleep(0.5)
self.assertTrue(ok, 'Unstable cluster state')
util.log('server state transition after hang')
util.log_server_state(self.cluster)
redis0 = redis_mgmt.Redis(m['id'])
ret = redis0.connect(m['ip'], m['redis_port'])
self.assertEqual(
ret, 0,
'failed to connect to redis(%s:%d).' % (m['ip'], m['redis_port']))
# set values
for i in range(10000, 20000):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
redis0.write(cmd)
res = redis0.read_until('\r\n')
self.assertEqual(
res, '+OK\r\n',
'failed to set values. cmd:%s, res:%s' % (cmd, res))
redis1 = redis_mgmt.Redis(s1['id'])
ret = redis1.connect(s1['ip'], s1['redis_port'])
self.assertEqual(
ret, 0, 'failed to connect to redis(%s:%d).' %
(s1['ip'], s1['redis_port']))
redis2 = redis_mgmt.Redis(s2['id'])
ret = redis2.connect(s2['ip'], s2['redis_port'])
self.assertEqual(
ret, 0, 'failed to connect to redis(%s:%d).' %
(s2['ip'], s2['redis_port']))
# check new values (m)
for i in range(10000, 20000):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis0.write(cmd)
redis0.read_until('\r\n')
res = redis0.read_until('\r\n')
self.assertEqual(
res, '%d\r\n' % i,
'failed to get values from redis(id:%d). %s != %d' %
(m['id'], res, i))
# check new values (s1)
for i in range(10000, 20000):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis1.write(cmd)
redis1.read_until('\r\n')
res = redis1.read_until('\r\n')
self.assertEqual(
res, '%d\r\n' % i,
'failed to get values from redis(id:%d). %s != %d' %
(s1['id'], res[:-2], i))
# check new values (s2)
for i in range(10000, 20000):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis2.write(cmd)
redis2.read_until('\r\n')
res = redis2.read_until('\r\n')
self.assertEqual(
res, '%d\r\n' % i,
'failed to get values from redis(id:%d). %s != %d' %
(s2['id'], res[:-2], i))
# check consistency
ok = False
for try_cnt in range(0, 10):
ok = util.check_cluster(self.cluster['cluster_name'], self.mgmt_ip,
self.mgmt_port)
print ok
if ok:
break
time.sleep(1)
self.assertEqual(ok, True, 'role consistency fail')
return 0
def test_7_dirty_network_fi(self):
util.print_frame()
clnts = []
try:
util.iptables_print_list()
# Add forwarding role
self.assertTrue(util.iptables_redirect('A', '127.0.0.100', '127.0.0.1'), 'add a forwarding role to iptables fail.')
cluster_name = 'network_isolation_cluster_1'
cluster = filter(lambda x: x['cluster_name'] == cluster_name, config.clusters)[0]
util.log(util.json_to_str(cluster))
self.leader_cm = cluster['servers'][0]
# MGMT
mgmt_ip = cluster['servers'][0]['real_ip']
mgmt_port = cluster['servers'][0]['cm_port']
# Create cluster
conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster,
conf={'cm_context':'applicationContext-fi.xml'})
self.assertIsNotNone(conf_checker, 'failed to initialize cluster')
# Print initial state of cluster
util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
initial_state = []
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')
# Start crc16 client
for s in cluster['servers']:
c = load_generator_crc16.Crc16Client(s['id'], s['ip'], s['redis_port'], 600, verbose=False)
c.start()
clnts.append(c)
# Network isolation test
cmfi = fi_confmaster.ConfmasterWfFi(['ra', 'me', 'yj', 'bj', 'mg'],
['lconn', 'slave', 'master', 'setquorum'], [True, False], 1)
for fi in cmfi:
# Block network
util.log('\n\n\n ### BLOCK NETWORK, %s ### ' % str(fi))
ret = block_network(cluster, mgmt_ip, mgmt_port)
self.assertTrue(ret, '[%s] failed to block network.' % str(fi))
for i in xrange(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
ok = False
for i in xrange(10):
isolated_states = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
state_transition_done = True
for s in isolated_states:
if s['ip'] != '127.0.0.100':
continue
if s['active_role'] != '?' or s['mgmt_role'] != 'N':
state_transition_done = False
if state_transition_done:
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state transition')
# Fault injection
try:
self.assertTrue(fi_confmaster.fi_add(fi, 1, mgmt_ip, mgmt_port),
"Confmaster command fail. fi: %s" % str(fi))
except ValueError as e:
self.fail("Confmaster command error. cmd: \"%s\", reply: \"%s\"" % (cmd, reply))
# Unblock network
util.log('\n\n\n ### UNBLOCK NETWORK, %s ### ' % str(fi))
ret = unblock_network(cluster, mgmt_ip, mgmt_port, None)
self.assertTrue(ret, '[%s] failed to unblock network.' % str(fi))
for i in xrange(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
ok = False
for i in xrange(10):
isolated_states = []
ok = util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
if ok:
break
time.sleep(1)
self.assertTrue(ok, '[%s] Fail. unstable cluster.' % str(fi))
check_cluster = False
# 'bj', 'slave'
if fi[0] == 'bj' and fi[1] == 'slave':
m, s1, s2 = util.get_mss(cluster)
ret = util.role_lconn(s1)
self.assertEqual("+OK\r\n", ret, '[%s] role lconn fail.' % str(fi))
check_cluster = True
# 'me', 'lconn'
elif fi[0] == 'me':
m, s1, s2 = util.get_mss(cluster)
ret = util.role_lconn(m)
self.assertEqual("+OK\r\n", ret, '[%s] role lconn fail.' % str(fi))
check_cluster = True
# 'setquorum'
elif fi[1] == 'setquorum':
m, s1, s2 = util.get_mss(cluster)
ret = util.cmd_to_smr_addr(s1['ip'], s1['smr_mgmt_port'], 'fi delay sleep 1 8000\r\n', timeout=20)
self.assertEqual("+OK\r\n", ret, '[%s] "fi delay sleep 1 8000" fail. ret: "%s"' % (str(fi), ret))
check_cluster = True
if check_cluster:
# Check cluster state
ok = False
for i in xrange(20):
isolated_states = []
ok = util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
if ok:
break
time.sleep(1)
self.assertTrue(ok, '[%s] Fail. unstable cluster.' % str(fi))
# Check fault injection
ok = False
for i in xrange(10):
count = fi_confmaster.fi_count(fi, mgmt_ip, mgmt_port)
if count == 0:
ok = True
break
time.sleep(0.5)
self.assertTrue(ok, "[%s] fail. failt injection had not been triggered." % str(fi))
for c in clnts:
self.assertTrue(c.is_consistency(), '[%s] data consistency error!' % str(fi))
for c in clnts:
self.assertTrue(c.is_consistency(), '[%s] data consistency error!' % str(fi))
# Go back to initial configuration
cmfi.init()
for fi in cmfi:
try:
self.assertTrue(fi_confmaster.fi_add(fi, 0, mgmt_ip, mgmt_port),
"Confmaster command fail. fi: %s" % str(fi))
except ValueError as e:
self.fail("Confmaster command error. cmd: \"%s\", reply: \"%s\"" % (cmd, reply))
# Wait until workflows done
ret = util.await(60, True)(
lambda cinfo: cinfo['wf'] == 0,
lambda : util.cluster_info(mgmt_ip, mgmt_port, cluster['cluster_name']))
self.assertTrue(ret, 'There are still some workflows.')
self.assertTrue(conf_checker.final_check())
# Shutdown cluster
default_cluster.finalize(cluster)
finally:
for c in clnts:
c.quit()
for c in clnts:
c.join()
# Delete forwarding role
self.assertTrue(util.iptables_redirect('D', '127.0.0.100', '127.0.0.1'), 'add a forwarding role to iptables fail.')
def master_hang(self):
# get gateway info
ip, port = util.get_rand_gateway(self.cluster)
gw = gateway_mgmt.Gateway(self.cluster['servers'][0]['id'])
ret = gw.connect(ip, port)
self.assertEqual(ret, 0,
'failed to connect to gateway, %s:%d' % (ip, port))
# set values
for i in range(0, 10000):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
gw.write(cmd)
res = gw.read_until('\r\n')
self.assertEqual(
res, '+OK\r\n',
'failed to set values. cmd:%s, res:%s' % (cmd, res))
# get master, slave1, slave2
if len(self.cluster['servers']) == 3:
m, s1, s2 = util.get_mss(self.cluster)
self.assertNotEqual(m, None, 'master is None.')
self.assertNotEqual(s1, None, 'slave1 is None.')
self.assertNotEqual(s2, None, 'slave2 is None.')
else:
m, s1 = util.get_mss(self.cluster)
self.assertNotEqual(m, None, 'master is None.')
self.assertNotEqual(s1, None, 'slave1 is None.')
util.log('server state before hang')
util.log_server_state(self.cluster)
# hang
smr = smr_mgmt.SMR(m['id'])
ret = smr.connect(m['ip'], m['smr_mgmt_port'])
self.assertEqual(
ret, 0, 'failed to connect to master. %s:%d' %
(m['ip'], m['smr_mgmt_port']))
smr.write('fi delay sleep 1 10000\r\n')
reply = smr.read_until('\r\n', 1)
if reply != None and reply.find('-ERR not supported') != -1:
self.assertEqual(
0, 1, 'make sure that smr has compiled with gcov option.')
time.sleep(5)
# wait for forced master election
success = False
for i in range(20):
role = util.get_role_of_server(s1)
if role == c.ROLE_MASTER:
success = True
break
if len(self.cluster['servers']) == 3:
role = util.get_role_of_server(s2)
if role == c.ROLE_MASTER:
success = True
break
time.sleep(1)
util.log('server state transition after hang')
util.log_server_state(self.cluster)
self.assertEqual(success, True, 'failed to forced master election')
redis1 = redis_mgmt.Redis(s1['id'])
ret = redis1.connect(s1['ip'], s1['redis_port'])
self.assertEqual(
ret, 0, 'failed to connect to redis(%s:%d).' %
(s1['ip'], s1['redis_port']))
# set new values
for i in range(10000, 20000):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
redis1.write(cmd)
res = redis1.read_until('\r\n')
self.assertEqual(
res, '+OK\r\n',
'failed to set values to redis1. cmd:%s, res:%s' %
(cmd[:-2], res))
if len(self.cluster['servers']) == 3:
redis2 = redis_mgmt.Redis(s2['id'])
ret = redis2.connect(s2['ip'], s2['redis_port'])
self.assertEqual(
ret, 0, 'failed to connect to redis(%s:%d).' %
(s2['ip'], s2['redis_port']))
# check new values
for i in range(10000, 20000):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis2.write(cmd)
redis2.read_until('\r\n')
res = redis2.read_until('\r\n')
self.assertEqual(
res, '%d\r\n' % i,
'failed to get values from redis2. %s != %d' % (res, i))
# check if the haning server recovered and joined as a slave
time.sleep(7)
role = util.get_role_of_server(m)
self.assertEqual(role, c.ROLE_SLAVE, 'failed to join as a slave')
redis0 = redis_mgmt.Redis(m['id'])
ret = redis0.connect(m['ip'], m['redis_port'])
self.assertEquals(
ret, 0,
'failed to connect to redis(%s:%d).' % (m['ip'], m['redis_port']))
util.log('server state transition after hang')
util.log_server_state(self.cluster)
# check new values
for i in range(10000, 20000):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis0.write(cmd)
redis0.read_until('\r\n')
res = redis0.read_until('\r\n')
self.assertEqual(
res, '%d\r\n' % i,
'failed to get values from redis2. %s != %d' % (res[:-2], i))
# check consistency
self.assertEqual(
util.check_cluster(self.cluster['cluster_name'], self.mgmt_ip,
self.mgmt_port), True, 'role consistency fail')
return 0
def test_1_role_change(self):
util.print_frame()
self.load_gen_list = {}
# Start load generator
util.log("Start load_generator")
for i in range(self.max_load_generator):
ip, port = util.get_rand_gateway(self.cluster)
load_gen = load_generator.LoadGenerator(i, ip, port)
load_gen.start()
self.load_gen_list[i] = load_gen
# Loop (smr: 3 copy)
for i in range(30):
target_server = util.get_server_by_role(self.cluster['servers'],
'slave')
self.assertNotEquals(target_server, None, 'Get slave fail.')
target = target_server['id']
print ''
util.log("(3 copy) Loop:%d, target pgs:%d" % (i, target))
# Get old timestamp
util.log_server_state(self.cluster)
old_timestamp_list = []
for s in self.cluster['servers']:
ts = util.get_timestamp_of_pgs(s)
old_timestamp_list.append(ts)
# Role change
master = util.role_change(self.leader_cm,
self.cluster['cluster_name'], target)
self.assertNotEqual(master, -1, 'role_change error.')
while target == master:
target = (target + 1) % 3
util.log('Change role success.')
# Wait until role change finished
for s in self.cluster['servers']:
max_try_cnt = 20
ok = False
for try_cnt in range(max_try_cnt):
try:
pong = util.pingpong(s['ip'], s['redis_port'])
if pong != None and pong == '+PONG\r\n':
ok = True
break
except:
pass
time.sleep(0.2)
self.assertTrue(ok, 'redis state error.')
# Get new timestamp
util.log_server_state(self.cluster)
new_timestamp_list = []
for s in self.cluster['servers']:
ts = util.get_timestamp_of_pgs(s)
new_timestamp_list.append(ts)
# Compare old timestamps and new timestamps
for i in range(3):
self.assertNotEqual(
old_timestamp_list[i], new_timestamp_list[i],
'Timestamp is not changed. %d->%d' %
(old_timestamp_list[i], new_timestamp_list[i]))
# Cheeck Consistency
for load_gen_id, load_gen in self.load_gen_list.items():
self.assertTrue(load_gen.isConsistent(),
'Data inconsistency after role_change')
# Loop (smr: 2 copy)
self.__del_server(self.cluster['servers'][0])
servers = [self.cluster['servers'][1], self.cluster['servers'][2]]
normal_state = False
for i in xrange(20):
normal_state = util.check_cluster(self.cluster['cluster_name'],
self.leader_cm['ip'],
self.leader_cm['cm_port'],
check_quorum=True)
if normal_state:
break
time.sleep(0.5)
self.assertTrue(normal_state, "Unstable cluster state")
for i in range(30):
print ''
util.log("(2 copy) Loop:%d, target pgs:%d" % (i, target))
s = util.get_server_by_role(servers, 'slave')
target = s['id']
# Get old timestamp
util.log_server_state(self.cluster)
old_timestamp_list = []
for s in servers:
ts = util.get_timestamp_of_pgs(s)
old_timestamp_list.append(ts)
# Role change
master = util.role_change(self.leader_cm,
self.cluster['cluster_name'], target)
self.assertNotEqual(master, -1, 'role_change error.')
while target == master:
target = (target) % 2 + 1
util.log('Change role success.')
# Wait until role change finished
for s in servers:
max_try_cnt = 20
ok = False
for try_cnt in range(max_try_cnt):
pong = util.pingpong(s['ip'], s['redis_port'])
if pong != None and pong == '+PONG\r\n':
ok = True
break
time.sleep(0.1)
self.assertTrue(ok, 'redis state error.')
# Get new timestamp
util.log_server_state(self.cluster)
new_timestamp_list = []
for s in servers:
ts = util.get_timestamp_of_pgs(s)
new_timestamp_list.append(ts)
# Compare old timestamps and new timestamps
for i in range(2):
self.assertNotEqual(
old_timestamp_list[i], new_timestamp_list[i],
'Timestamp is not changed. %d->%d' %
(old_timestamp_list[i], new_timestamp_list[i]))
# Cheeck Consistency
for load_gen_id, load_gen in self.load_gen_list.items():
self.assertTrue(load_gen.isConsistent(),
'Data inconsistency after role_change')
# Go back to initial configuration
self.assertTrue(
util.install_pgs(self.cluster,
self.cluster['servers'][0],
self.leader_cm,
rm_ckpt=False), 'failed to recover pgs.')
def master_failover_while_hang(self):
util.print_frame()
# get gateway info
ip, port = util.get_rand_gateway(self.cluster)
gw = gateway_mgmt.Gateway(self.cluster['servers'][0]['id'])
ret = gw.connect(ip, port)
self.assertEqual(ret, 0,
'failed to connect to gateway, %s:%d' % (ip, port))
# set values
for i in range(0, 10000):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
gw.write(cmd)
res = gw.read_until('\r\n')
self.assertEqual(
res, '+OK\r\n',
'failed to set values. cmd:%s, res:%s' % (cmd, res))
# get master, slave1, slave2
if len(self.cluster['servers']) == 3:
m, s1, s2 = util.get_mss(self.cluster)
self.assertNotEqual(m, None, 'master is None.')
self.assertNotEqual(s1, None, 'slave1 is None.')
self.assertNotEqual(s2, None, 'slave2 is None.')
else:
m, s1 = util.get_mss(self.cluster)
self.assertNotEqual(m, None, 'master is None.')
self.assertNotEqual(s1, None, 'slave1 is None.')
util.log('server state before hang')
util.log_server_state(self.cluster)
self.failover_while_hang(m)
util.log('server state transition after hang')
util.log_server_state(self.cluster)
redis1 = redis_mgmt.Redis(m['id'])
ret = redis1.connect(m['ip'], m['redis_port'])
self.assertEqual(
ret, 0,
'failed to connect to redis(%s:%d).' % (m['ip'], m['redis_port']))
# set new values
for i in range(10000, 20000):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
redis1.write(cmd)
res = redis1.read_until('\r\n')
self.assertEqual(
res, '+OK\r\n',
'failed to set values to redis1. cmd:%s, res:%s' %
(cmd[:-2], res))
if len(self.cluster['servers']) == 3:
redis2 = redis_mgmt.Redis(s2['id'])
ret = redis2.connect(s2['ip'], s2['redis_port'])
self.assertEqual(
ret, 0, 'failed to connect to redis(%s:%d).' %
(s2['ip'], s2['redis_port']))
# check new values
for i in range(10000, 20000):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis2.write(cmd)
redis2.read_until('\r\n')
res = redis2.read_until('\r\n')
self.assertEqual(
res, '%d\r\n' % i,
'failed to get values from redis2. %s != %d' % (res, i))
util.log(
'succeeded : check values with set/get operations with pgs%d and pgs%d.'
% (m['id'], s2['id']))
redis0 = redis_mgmt.Redis(m['id'])
ret = redis0.connect(m['ip'], m['redis_port'])
self.assertEquals(
ret, 0,
'failed to connect to redis(%s:%d).' % (m['ip'], m['redis_port']))
# check new values
for i in range(10000, 20000):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis0.write(cmd)
redis0.read_until('\r\n')
res = redis0.read_until('\r\n')
self.assertEqual(
res, '%d\r\n' % i,
'failed to get values from redis2. %s != %d' % (res[:-2], i))
# check consistency
self.assertEqual(
util.check_cluster(self.cluster['cluster_name'], self.mgmt_ip,
self.mgmt_port), True, 'role consistency fail')
return 0
def test_4_role_change_with_failover(self):
util.print_frame()
loop_cnt = 0
while loop_cnt < 5:
util.log('')
util.log('Loop:%d' % loop_cnt)
util.log("States (before role change)")
util.log_server_state(self.cluster)
target = random.choice(self.cluster['servers'])
# bgsave
ret = util.bgsave(target)
self.assertTrue(ret, 'failed to bgsave. pgs:%d' % target['id'])
# shutdown
util.log('shutdown pgs%d(%s:%d)' %
(target['id'], target['ip'], target['smr_base_port']))
ret = testbase.request_to_shutdown_smr(target)
self.assertEqual(ret, 0, 'failed to shutdown smr')
ret = testbase.request_to_shutdown_redis(target)
self.assertEquals(ret, 0, 'failed to shutdown redis')
r = ''
expected = 'N'
for fc_cnt in xrange(20):
r = util.get_smr_role_of_cm(target, self.leader_cm)
if r == expected:
break
time.sleep(0.5)
self.assertEquals(r, expected, 'failure detection error.')
running_servers = []
for s in self.cluster['servers']:
if s != target:
running_servers.append(s)
# Get old timestamp
old_timestamps = {}
for s in running_servers:
ts = util.get_timestamp_of_pgs(s)
old_timestamps[s['id']] = ts
# Start load generator
self.load_gen_list = {}
util.log('start load generator')
for i in range(self.max_load_generator):
ip, port = util.get_rand_gateway(self.cluster)
load_gen = load_generator.LoadGenerator(i, ip, port)
load_gen.start()
self.load_gen_list[i] = load_gen
m, s1, s2 = util.get_mss(self.cluster)
self.assertNotEqual(m, None, 'master is None.')
self.assertNotEqual(s1, None, 'slave1 is None.')
# Role change
master_id = util.role_change(self.leader_cm,
self.cluster['cluster_name'],
s1['id'])
self.assertNotEqual(master_id, -1, 'role_change failed')
util.log("States (after role change)")
util.log_server_state(self.cluster)
# Check - get new timestamp
new_timestamps = {}
for s in running_servers:
ts = util.get_timestamp_of_pgs(s)
new_timestamps[s['id']] = ts
# Check - compare old timestamps and new timestamps
for s in running_servers:
old_ts = old_timestamps[s['id']]
new_ts = new_timestamps[s['id']]
self.assertNotEqual(
old_ts, new_ts,
'Timestamp of a running server has not changed. %d->%d' %
(old_ts, new_ts))
# Check quorum
m = self.cluster['servers'][master_id]
expected = 1
ok = self.__check_quorum(m, expected)
self.assertTrue(
ok, 'unexpected quorum(after role change). expected:%s' %
(expected))
# recovery
util.log('recovery pgs%d(%s:%d)' %
(target['id'], target['ip'], target['smr_base_port']))
ret = testbase.request_to_start_smr(target)
self.assertEqual(ret, 0, 'failed to start smr')
util.log('start smr-replicator done')
ret = testbase.request_to_start_redis(target, 60)
self.assertEqual(ret, 0, 'failed to start redis')
util.log('start redis-arc done')
ret = testbase.wait_until_finished_to_set_up_role(target,
max_try=300)
self.assertEquals(
ret, 0, 'failed to role change. smr_id:%d' % (target['id']))
util.log("States (after recovery)")
util.log_server_state(self.cluster)
# Check cluster state
normal_state = False
for i in xrange(20):
normal_state = util.check_cluster(self.cluster['cluster_name'],
self.leader_cm['ip'],
self.leader_cm['cm_port'],
check_quorum=True)
if normal_state:
break
time.sleep(0.5)
self.assertTrue(normal_state, "Unstable cluster state")
# Check quorum
expected = 2
ok = self.__check_quorum(m, expected)
self.assertTrue(
ok,
'unexpected quorum(after recovery). expected:%s' % (expected))
# Cheeck Consistency
util.log('stop load generator')
for i in range(self.max_load_generator):
self.load_gen_list[i].quit()
for i in range(self.max_load_generator):
self.load_gen_list[i].join()
self.assertTrue(self.load_gen_list[i].isConsistent(),
'Inconsistent after migration')
self.load_gen_list.pop(i, None)
loop_cnt += 1
return 0
def test_large_scale_master_election(self):
util.print_frame()
# initialize cluster information
pgs_id = 10
cluster = {
'cluster_name': 'large_scale',
'keyspace_size': 8192,
'quorum_policy': '0:1',
'slots': [],
'pg_id_list': [],
'servers': []
}
pg_max = 32
pgs_per_pg = 3
for pg_id in range(pg_max):
cluster['pg_id_list'].append(pg_id)
cluster['slots'].append(8192 / pg_max * pg_id)
if pg_id == pg_max - 1:
cluster['slots'].append(8191)
else:
cluster['slots'].append(8192 / pg_max * (pg_id + 1) - 1)
for pgs in range(pgs_per_pg):
smr_base_port = 15000 + pgs_id * 20
smr_mgmt_port = smr_base_port + 3
gateway_port = smr_base_port + 10
redis_port = smr_base_port + 9
server = {}
server['id'] = pgs_id
pgs_id = pgs_id + 1
server['cluster_name'] = cluster['cluster_name']
server['ip'] = self.cluster['servers'][0]['ip']
server['pm_name'] = self.cluster['servers'][0]['pm_name']
server['cm_port'] = None
server['pg_id'] = pg_id
server['smr_base_port'] = smr_base_port
server['smr_mgmt_port'] = smr_mgmt_port
server['gateway_port'] = gateway_port
server['redis_port'] = redis_port
server['zk_port'] = 2181
cluster['servers'].append(server)
# send initialize commands to confmaster
testbase.initialize_cluster(cluster, self.leader_cm)
# set up pgs binaries
try:
for server in cluster['servers']:
id = server['id']
util.log('copy binaries, server_id=%d' % id)
util.copy_smrreplicator(id)
util.copy_gw(id)
util.copy_redis_server(id)
util.copy_cluster_util(id)
except IOError as e:
util.log(e)
util.log('Error: can not find file or read data')
self.assertEqual(0, 1, 'Error: can not find file or read data')
except:
util.log('Error: file open error.')
# cleanup servers`s directories
for server in cluster['servers']:
ret = testbase.cleanup_pgs_log_and_ckpt(cluster['cluster_name'],
server)
self.assertEqual(
ret, 0,
'failed to cleanup_test_environment, id=%d' % server['id'])
# start pgs
for server in cluster['servers']:
ret = testbase.request_to_start_smr(server)
self.assertEqual(
ret, 0, 'failed to request_to_start_smr, id=%d' % server['id'])
for server in cluster['servers']:
ret = testbase.request_to_start_redis(server, check=False)
self.assertEqual(
ret, 0, 'failed to request_to_start_smr, id=%d' % server['id'])
for server in cluster['servers']:
ret = testbase.wait_until_finished_to_set_up_role(server)
self.assertEqual(ret, 0,
'failed to role set up, id=%d' % server['id'])
for i in range(4):
server = cluster['servers'][i]
ret = testbase.request_to_start_gateway(cluster['cluster_name'],
server, self.leader_cm)
self.assertEqual(
ret, 0,
'failed to request_to_start_gateway, id=%d' % server['id'])
clusters = cluster_ls()
self.assertNotEqual(len(clusters), 0, 'There is no clsuter.')
ok = True
for c in clusters:
if not util.check_cluster(str(c),
self.leader_cm['ip'],
self.leader_cm['cm_port'],
check_quorum=True):
ok = False
self.assertEqual(ok, True, 'failed to initlize roles of pgs')
def test_two_slaves_hang( self ):
util.print_frame()
self.setup_test_cluster( self.cluster_3copy )
# get gateway info
ip, port = util.get_rand_gateway( self.cluster )
gw = gateway_mgmt.Gateway( self.cluster['servers'][0]['id'] )
ret = gw.connect( ip, port )
self.assertEqual( ret, 0, 'failed to connect to gateway, %s:%d' % (ip, port) )
# set values
for i in range( 0, 10000 ):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
gw.write( cmd )
res = gw.read_until( '\r\n' )
self.assertEqual( res, '+OK\r\n', 'failed to set values. cmd:%s, res:%s' % (cmd, res) )
# get master, slave1, slave2
m, s1, s2 = util.get_mss( self.cluster )
self.assertNotEqual( m, None, 'master is None.' )
self.assertNotEqual( s1, None, 'slave1 is None.' )
self.assertNotEqual( s2, None, 'slave2 is None.' )
util.log( 'server state before hang' )
util.log_server_state( self.cluster )
# timestamp before hang
ts_before1 = util.get_timestamp_of_pgs( s1 )
self.assertNotEqual( ts_before1, -1, 'failed to get a timestamp of pgs(%d), ts_before:%d' % (s1['id'], ts_before1) )
ts_before2 = util.get_timestamp_of_pgs( s2 )
self.assertNotEqual( ts_before2, -1, 'failed to get a timestamp of pgs(%d), ts_before:%d' % (s2['id'], ts_before2) )
# hang
smr1 = smr_mgmt.SMR( s1['id'] )
ret = smr1.connect( s1['ip'], s1['smr_mgmt_port'] )
self.assertEqual( ret, 0, 'failed to connect to master. %s:%d' % (s1['ip'], s1['smr_mgmt_port']) )
smr2 = smr_mgmt.SMR( s2['id'] )
ret = smr2.connect( s2['ip'], s2['smr_mgmt_port'] )
self.assertEqual( ret, 0, 'failed to connect to master. %s:%d' % (s1['ip'], s1['smr_mgmt_port']) )
smr1.write( 'fi delay sleep 1 8000\r\n' )
reply = smr1.read_until( '\r\n', 1 )
if reply != None and reply.find('-ERR not supported') != -1:
self.assertEqual( 0, 1, 'make sure that smr has compiled with gcov option.' )
smr2.write( 'fi delay sleep 1 8000\r\n' )
time.sleep( 7 )
# wait for rejoin as a slave
success = False
for i in range( 20 ):
role = util.get_role_of_server( s1 )
if role == c.ROLE_SLAVE:
ts_after = util.get_timestamp_of_pgs( s1 )
if ts_after != -1 and ts_before1 == ts_after:
success = True
break
time.sleep( 1 )
self.assertEqual( success, True, 'failed to rejoin as a slave. %s:%d' % (s2['ip'], s2['smr_mgmt_port']) )
success = False
for i in range( 20 ):
role = util.get_role_of_server( s2 )
if role == c.ROLE_SLAVE:
ts_after = util.get_timestamp_of_pgs( s2 )
if ts_after != -1 and ts_before2 == ts_after:
success = True
break
time.sleep( 1 )
self.assertEqual( success, True, 'failed to rejoin as a slave. %s:%d' % (s2['ip'], s2['smr_mgmt_port']) )
util.log( 'server state transition after hang' )
util.log_server_state( self.cluster )
redis1 = redis_mgmt.Redis( s1['id'] )
ret = redis1.connect( s1['ip'], s1['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis(%s:%d).' % (s1['ip'], s1['redis_port']) )
redis2 = redis_mgmt.Redis( s2['id'] )
ret = redis2.connect( s2['ip'], s2['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis(%s:%d).' % (s2['ip'], s2['redis_port']) )
# set new values
for i in range( 10000, 20000 ):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
redis1.write( cmd )
res = redis1.read_until( '\r\n' )
self.assertEqual( res, '+OK\r\n', 'failed to set values to redis1. cmd:%s, res:%s' % (cmd[:-2], res) )
# check new values
for i in range( 10000, 20000 ):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis2.write( cmd )
redis2.read_until( '\r\n' )
res = redis2.read_until( '\r\n' )
self.assertEqual( res, '%d\r\n' % i, 'failed to get values from redis2. %s != %d' % (res, i) )
# check consistency
self.assertEqual(util.check_cluster(self.cluster['cluster_name'], self.mgmt_ip, self.mgmt_port), True, 'role consistency fail')
return 0
def pgs_add_and_del( self, upgrade_server, type ):
util.print_frame()
util.log( '[start] add and del pgs%d. type:%s' % (upgrade_server['id'], type) )
util.log_server_state( self.cluster )
# start load generator
load_gen_list = {}
for i in range( len(self.cluster['servers']) ):
server = self.cluster['servers'][i]
load_gen = load_generator.LoadGenerator(server['id'], server['ip'], server['gateway_port'])
load_gen.start()
load_gen_list[i] = load_gen
# detach pgs from cluster
cmd = 'pgs_leave %s %d\r\n' % (upgrade_server['cluster_name'], upgrade_server['id'])
ret = util.cm_command( self.leader_cm['ip'], self.leader_cm['cm_port'], cmd )
jobj = json.loads(ret)
self.assertEqual( jobj['msg'], '+OK', 'failed : cmd="%s", reply="%s"' % (cmd[:-2], ret[:-2]) )
util.log( 'succeeded : cmd="%s", reply="%s"' % (cmd[:-2], ret[:-2]) )
# set new values
ip, port = util.get_rand_gateway(self.cluster)
gw = gateway_mgmt.Gateway( '0' )
gw.connect( ip, port )
for i in range( 0, 50 ):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
gw.write( cmd )
res = gw.read_until( '\r\n' )
self.assertEqual( res, '+OK\r\n', 'failed to set values to gw(%s:%d). cmd:%s, res:%s' % (ip, port, cmd[:-2], res[:-2]) )
# attach pgs to cluster
cmd = 'pgs_join %s %d\r\n' % (upgrade_server['cluster_name'], upgrade_server['id'])
ret = util.cm_command( self.leader_cm['ip'], self.leader_cm['cm_port'], cmd )
jobj = json.loads(ret)
self.assertEqual( jobj['msg'], '+OK', 'failed : cmd="%s", reply="%s"' % (cmd[:-2], ret) )
util.log( 'succeeded : cmd="%s", reply="%s"' % (cmd[:-2], ret[:-2]) )
time.sleep( 3 )
stable = False
for i in xrange(20):
stable = util.check_cluster(self.cluster['cluster_name'], self.leader_cm['ip'], self.leader_cm['cm_port'])
if stable:
break;
time.sleep(0.5)
self.assertTrue(stable, 'Unstable cluster')
# check new values
redis = redis_mgmt.Redis( upgrade_server['id'] )
ret = redis.connect( upgrade_server['ip'], upgrade_server['redis_port'] )
self.assertEquals( ret, 0, 'failed : connect to smr%d(%s:%d)' % (upgrade_server['id'], upgrade_server['ip'], upgrade_server['redis_port']) )
for i in range( 0, 50 ):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis.write( cmd )
redis.read_until( '\r\n' )
res = redis.read_until( '\r\n' )
self.assertEqual( res, '%d\r\n' % i, 'failed to get values from redis%d. %s != %d' % (upgrade_server['id'], res, i) )
util.log( 'succeeded : check values with get operations on pgs%d.' % (upgrade_server['id']) )
# shutdown load generators
for i in range( len(load_gen_list) ):
load_gen_list[i].quit()
load_gen_list[i].join()
util.log_server_state( self.cluster )
return 0
def master_hang( self ):
# get gateway info
ip, port = util.get_rand_gateway( self.cluster )
gw = gateway_mgmt.Gateway( self.cluster['servers'][0]['id'] )
ret = gw.connect( ip, port )
self.assertEqual( ret, 0, 'failed to connect to gateway, %s:%d' % (ip, port) )
# set values
for i in range( 0, 10000 ):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
gw.write( cmd )
res = gw.read_until( '\r\n' )
self.assertEqual( res, '+OK\r\n', 'failed to set values. cmd:%s, res:%s' % (cmd, res) )
# get master, slave1, slave2
if len(self.cluster['servers']) == 3:
m, s1, s2 = util.get_mss( self.cluster )
self.assertNotEqual( m, None, 'master is None.' )
self.assertNotEqual( s1, None, 'slave1 is None.' )
self.assertNotEqual( s2, None, 'slave2 is None.' )
else:
m, s1 = util.get_mss( self.cluster )
self.assertNotEqual( m, None, 'master is None.' )
self.assertNotEqual( s1, None, 'slave1 is None.' )
util.log( 'server state before hang' )
util.log_server_state( self.cluster )
# hang
smr = smr_mgmt.SMR( m['id'] )
ret = smr.connect( m['ip'], m['smr_mgmt_port'] )
self.assertEqual( ret, 0, 'failed to connect to master. %s:%d' % (m['ip'], m['smr_mgmt_port']) )
smr.write( 'fi delay sleep 1 10000\r\n' )
reply = smr.read_until( '\r\n', 1 )
if reply != None and reply.find('-ERR not supported') != -1:
self.assertEqual( 0, 1, 'make sure that smr has compiled with gcov option.' )
time.sleep( 5 )
# wait for forced master election
success = False
for i in range( 20 ):
role = util.get_role_of_server( s1 )
if role == c.ROLE_MASTER:
success = True
break
if len(self.cluster['servers']) == 3:
role = util.get_role_of_server( s2 )
if role == c.ROLE_MASTER:
success = True
break
time.sleep( 1 )
util.log( 'server state transition after hang' )
util.log_server_state( self.cluster )
self.assertEqual( success, True, 'failed to forced master election' )
redis1 = redis_mgmt.Redis( s1['id'] )
ret = redis1.connect( s1['ip'], s1['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis(%s:%d).' % (s1['ip'], s1['redis_port']) )
# set new values
for i in range( 10000, 20000 ):
cmd = 'set %s%d %d\r\n' % (self.key_base, i, i)
redis1.write( cmd )
res = redis1.read_until( '\r\n' )
self.assertEqual( res, '+OK\r\n', 'failed to set values to redis1. cmd:%s, res:%s' % (cmd[:-2], res) )
if len(self.cluster['servers']) == 3:
redis2 = redis_mgmt.Redis( s2['id'] )
ret = redis2.connect( s2['ip'], s2['redis_port'] )
self.assertEqual( ret, 0, 'failed to connect to redis(%s:%d).' % (s2['ip'], s2['redis_port']) )
# check new values
for i in range( 10000, 20000 ):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis2.write( cmd )
redis2.read_until( '\r\n' )
res = redis2.read_until( '\r\n' )
self.assertEqual( res, '%d\r\n' % i, 'failed to get values from redis2. %s != %d' % (res, i) )
# check if the haning server recovered and joined as a slave
time.sleep( 7 )
role = util.get_role_of_server( m )
self.assertEqual( role, c.ROLE_SLAVE, 'failed to join as a slave' )
redis0 = redis_mgmt.Redis( m['id'] )
ret = redis0.connect( m['ip'], m['redis_port'] )
self.assertEquals( ret, 0, 'failed to connect to redis(%s:%d).' % (m['ip'], m['redis_port']) )
util.log( 'server state transition after hang' )
util.log_server_state( self.cluster )
# check new values
for i in range( 10000, 20000 ):
cmd = 'get %s%d\r\n' % (self.key_base, i)
redis0.write( cmd )
redis0.read_until( '\r\n' )
res = redis0.read_until( '\r\n' )
self.assertEqual( res, '%d\r\n' % i, 'failed to get values from redis2. %s != %d' % (res[:-2], i) )
# check consistency
self.assertEqual(util.check_cluster(self.cluster['cluster_name'], self.mgmt_ip, self.mgmt_port), True, 'role consistency fail')
return 0
def consistent_after_failover( self ):
max = 10000
wait_count = 15
key = 'caf'
# get master, slave1, and slave2
master, slave1, slave2 = self.get_mss()
# set value
ip, port = util.get_rand_gateway( self.cluster )
gw = gateway_mgmt.Gateway( ip )
gw.connect( ip, port )
for i in range( 0, max ):
cmd = 'set %s%d %d\r\n' % (key, i, i)
gw.write( cmd )
res = gw.read_until( '\r\n' )
self.assertEquals( res, '+OK\r\n' )
time.sleep( 5 )
# shutdown
servers = [master, slave1, slave2]
for server in servers:
util.log('before shutdown pgs%d' % server['id'])
for s in servers:
self.getseq_log(s)
ret = testbase.request_to_shutdown_smr( server )
self.assertEqual( ret, 0, 'failed to shutdown smr, server:%d' % server['id'] )
ret = testbase.request_to_shutdown_redis( server )
self.assertEquals( ret, 0, 'failed to shutdown redis' )
time.sleep( 5 )
# check state F
for server in servers:
state = self.get_expected_smr_state( server, 'F' )
self.assertEquals( 'F', state,
'server%d - state:%s' % (server['id'], state) )
# recovery
for server in servers:
ret = testbase.request_to_start_smr( server )
self.assertEqual( ret, 0, 'failed to start smr, server:%d' % server['id'] )
ret = testbase.request_to_start_redis( server, False )
self.assertEqual( ret, 0, 'failed to start redis, server:%d' % server['id'] )
util.log('after restart pgs%d' % server['id'])
for s in servers:
self.getseq_log(s)
time.sleep( 5 )
# wait for master election
for i in xrange(10):
ret = util.check_cluster( self.cluster['cluster_name'], self.leader_cm['ip'], self.leader_cm['cm_port'] )
if ret:
break
time.sleep(1)
# check state
for server in servers:
ret = testbase.wait_until_finished_to_set_up_role( server, wait_count )
self.assertEquals( ret, 0, 'failed to role change. server:%d' % (server['id']) )
state = self.get_expected_smr_state( server, 'N' )
role = util.get_role_of_server( server )
self.assertEquals( 'N', state,
'server%d - state:%s, role:%s' % (server['id'], state, role) )
the_number_of_master = 0
the_number_of_slave = 0
for server in servers:
role = util.get_role_of_server( server )
if role == c.ROLE_MASTER:
the_number_of_master = the_number_of_master + 1
elif role == c.ROLE_SLAVE:
the_number_of_slave = the_number_of_slave + 1
self.assertTrue( 1 == the_number_of_master and 2 == the_number_of_slave,
'failed to set roles, the number of master:%d, the number of slave:%d' %
(the_number_of_master, the_number_of_slave) )
# get master, slave1, and slave2
master, slave1, slave2 = self.get_mss()
# connect to a master`s redis and set data
redis = redis_mgmt.Redis( master['id'] )
ret = redis.connect( master['ip'], master['redis_port'] )
self.assertEquals( ret, 0, 'failed to connect to redis, server:%d' % master['id'] )
for i in range( max, max*2 ):
cmd = 'set %s%d %d\r\n' % (key, i, i)
redis.write( cmd )
res = redis.read_until( '\r\n' )
self.assertEquals( res, '+OK\r\n',
'failed to get response, server:%d' % master['id'] )
redis.disconnect()
# check slaves`s data
slaves = [slave1, slave2]
for slave in slaves:
slave_redis = redis_mgmt.Redis( slave['id'] )
ret = slave_redis .connect( slave['ip'], slave['redis_port'] )
self.assertEquals( ret, 0, 'failed to connect to redis, server:%d' % slave['id'] )
for i in range( 0, max*2 ):
cmd = 'get %s%d\r\n' % (key, i)
slave_redis.write( cmd )
trash = slave_redis.read_until( '\r\n' )
res = slave_redis.read_until( '\r\n' )
self.assertEquals( res, '%d\r\n' % i,
'inconsistent, server:%d, expected %d but %s' % (slave['id'], i, res) )
slave_redis.disconnect()
def test_large_scale_master_election( self ):
util.print_frame()
# initialize cluster information
pgs_id = 10
cluster = {
'cluster_name' : 'large_scale',
'keyspace_size' : 8192,
'quorum_policy' : '0:1',
'slots' : [],
'pg_id_list' : [],
'servers' : []
}
pg_max = 32
pgs_per_pg = 3
for pg_id in range(pg_max):
cluster['pg_id_list'].append(pg_id)
cluster['slots'].append(8192 / pg_max * pg_id)
if pg_id == pg_max - 1:
cluster['slots'].append(8191)
else:
cluster['slots'].append(8192 / pg_max * (pg_id + 1) - 1)
for pgs in range(pgs_per_pg):
smr_base_port = 15000 + pgs_id * 20
smr_mgmt_port = smr_base_port + 3
gateway_port = smr_base_port + 10
redis_port = smr_base_port + 9
server = {}
server['id'] = pgs_id
pgs_id = pgs_id + 1
server['cluster_name'] = cluster['cluster_name']
server['ip'] = self.cluster['servers'][0]['ip']
server['pm_name'] = self.cluster['servers'][0]['pm_name']
server['cm_port'] = None
server['pg_id'] = pg_id
server['smr_base_port'] = smr_base_port
server['smr_mgmt_port'] = smr_mgmt_port
server['gateway_port'] = gateway_port
server['redis_port'] = redis_port
server['zk_port'] = 2181
cluster['servers'].append(server)
# send initialize commands to confmaster
testbase.initialize_cluster(cluster, self.leader_cm)
# set up pgs binaries
try:
for server in cluster['servers']:
id = server['id']
util.log('copy binaries, server_id=%d' % id)
util.copy_smrreplicator( id )
util.copy_gw( id )
util.copy_redis_server( id )
util.copy_cluster_util( id )
except IOError as e:
util.log(e)
util.log('Error: can not find file or read data')
self.assertEqual(0, 1, 'Error: can not find file or read data')
except:
util.log('Error: file open error.')
# cleanup servers`s directories
for server in cluster['servers']:
ret = testbase.cleanup_pgs_log_and_ckpt( cluster['cluster_name'], server )
self.assertEqual(ret, 0, 'failed to cleanup_test_environment, id=%d' % server['id'])
# start pgs
for server in cluster['servers']:
ret = testbase.request_to_start_smr( server )
self.assertEqual(ret, 0, 'failed to request_to_start_smr, id=%d' % server['id'])
for server in cluster['servers']:
ret = testbase.request_to_start_redis( server, check=False )
self.assertEqual(ret, 0, 'failed to request_to_start_smr, id=%d' % server['id'])
for server in cluster['servers']:
ret = testbase.wait_until_finished_to_set_up_role(server)
self.assertEqual(ret, 0, 'failed to role set up, id=%d' % server['id'])
for i in range(4):
server = cluster['servers'][i]
ret = testbase.request_to_start_gateway( cluster['cluster_name'], server, self.leader_cm )
self.assertEqual(ret, 0, 'failed to request_to_start_gateway, id=%d' % server['id'])
clusters = cluster_ls()
self.assertNotEqual(len(clusters), 0, 'There is no clsuter.')
ok = True
for c in clusters:
if not util.check_cluster(str(c), self.leader_cm['ip'], self.leader_cm['cm_port'], check_quorum=True):
ok = False
self.assertEqual(ok, True, 'failed to initlize roles of pgs')
def test_1_mgmt_is_isolated(self):
util.print_frame()
out = util.sudo('iptables -L')
util.log('====================================================================')
util.log('out : %s' % out)
util.log('out.return_code : %d' % out.return_code)
util.log('out.stderr : %s' % out.stderr)
util.log('out.succeeded : %s' % out.succeeded)
cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_1', config.clusters)[0]
util.log(util.json_to_str(cluster))
# MGMT
mgmt_ip = cluster['servers'][0]['real_ip']
mgmt_port = cluster['servers'][0]['cm_port']
# Create cluster
ret = default_cluster.initialize_starting_up_smr_before_redis( cluster )
self.assertEqual(0, ret, 'failed to TestMaintenance.initialize')
# Print initial state of cluster
util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
initial_state = []
self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')
# Set SMR option (slave_idle_timeout)
util.log('\n\n\n ### Set SMR option ###')
for s in cluster['servers']:
t = telnet.Telnet('SMR%d' % s['id'])
self.assertEqual(t.connect(s['ip'], s['smr_mgmt_port']), 0,
'Failed to connect to smr. ADDR=%s:%d' % (s['ip'], s['smr_mgmt_port']))
cmd = 'confset slave_idle_timeout_msec 18000'
util.log('[%s:%d] >> %s' % (s['ip'], s['smr_mgmt_port'], cmd))
t.write('confset slave_idle_timeout_msec 18000\r\n')
reply = t.read_until('\r\n').strip()
util.log('[%s:%d] << %s' % (s['ip'], s['smr_mgmt_port'], reply))
self.assertEqual(reply, '+OK', 'Failed to set slave_idle_timeout, REPLY=%s' % reply)
# Network isolation test
for cnt in range(5):
# Block network
util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % cnt)
for s in cluster['servers']:
out = util.sudo('iptables -A OUTPUT -d 127.0.0.100 -p tcp --dport %d -j DROP' % (s['smr_mgmt_port']))
"""Loopback Address Range (Reference : RFC3330)
127.0.0.0/8 - This block is assigned for use as the Internet host
loopback address. A datagram sent by a higher level protocol to an
address anywhere within this block should loop back inside the host.
This is ordinarily implemented using only 127.0.0.1/32 for loopback,
but no addresses within this block should ever appear on any network
anywhere [RFC1700, page 5].
"""
self.assertTrue(out.succeeded, 'add a bloking role to iptables fail. output:%s' % out)
for i in range(4):
util.log('waiting... %d' % (i + 1))
time.sleep(1)
# Check cluster state
ok = False
for i in range(7):
isolated_states = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
time.sleep(1)
state_transition_done = True
for s in isolated_states:
if s['ip'] != '127.0.0.100':
continue
if s['active_role'] != '?' or s['mgmt_role'] != 'N':
state_transition_done = False
if state_transition_done :
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state transition')
# Unblock network
util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % cnt)
for s in cluster['servers']:
out = util.sudo('iptables -D OUTPUT -d 127.0.0.100 -p tcp --dport %d -j DROP' % (s['smr_mgmt_port']))
self.assertTrue(out.succeeded, 'delete a bloking role to iptables fail. output:%s' % out)
# Check cluster state
ok = False
for i in range(7):
final_state = []
util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True)
state_consistency = True
for s in final_state:
if s['active_role'] != s['mgmt_role']:
state_consistency = False
if state_consistency:
ok = True
break
time.sleep(1)
self.assertTrue(ok, 'Fail, state consistency')
# Check state
self.assertNotEqual(initial_state, None, 'initial_state is None')
self.assertNotEqual(final_state, None, 'final_state is None')
initial_state = sorted(initial_state, key=lambda x: int(x['pgs_id']))
final_state = sorted(final_state, key=lambda x: int(x['pgs_id']))
for i in range(len(final_state)):
msg = 'ts (%d)%d -> (%d)%d' % (initial_state[i]['pgs_id'], initial_state[i]['active_ts'], final_state[i]['pgs_id'], final_state[i]['active_ts'])
util.log(msg)
self.assertEqual(initial_state[i]['active_ts'], final_state[i]['active_ts'], msg)
# Shutdown cluster
ret = default_cluster.finalize( cluster )
self.assertEqual(ret, 0, 'failed to TestMaintenance.finalize')
