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 failover_while_hang( self, server ):
# timestamp before hang
ts_before = util.get_timestamp_of_pgs( server )
self.assertNotEqual( ts_before, -1, 'failed to get a timestamp of pgs(%d), ts_before:%d' % (server['id'], ts_before) )
# hang
util.log('pgs(id:%d, ip:%s, port:%d) is going to hang.' % (server['id'], server['ip'], server['smr_mgmt_port']))
smr = smr_mgmt.SMR( server['id'] )
ret = smr.connect( server['ip'], server['smr_mgmt_port'] )
self.assertEqual( ret, 0, 'failed to connect to master. %s:%d' % (server['ip'], server['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( 4 )
# check state F
max_try = 20
expected = 'F'
for i in range( 0, max_try):
state = util.get_smr_state( server, self.leader_cm )
if expected == state:
break;
time.sleep( 1 )
self.assertEquals( expected , state,
'server%d - state:%s, expected:%s' % (server['id'], state, expected) )
util.log( 'succeeded : pgs%d state changed to F.' % server['id'] )
# shutdown
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.assertEquals( 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):
state = util.get_smr_state( server, self.leader_cm )
if expected == state:
break;
time.sleep( 1 )
self.assertEquals( expected , state,
'server%d - state:%s, expected:%s' % (server['id'], state, expected) )
util.log( 'succeeded : pgs%d state changed to F.' % server['id'] )
# 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.assertEquals( 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.assertEquals( ret, 0, 'failed to connect to redis' )
# check state N
max_try = 20
expected = 'N'
for i in range( 0, max_try):
state = util.get_smr_state( server, self.leader_cm )
if expected == state:
break;
time.sleep( 1 )
self.assertEquals( expected , state,
'server%d - state:%s, expected:%s' % (server['id'], state, expected) )
util.log( 'succeeded : pgs%d state changed to N.' % server['id'] )
# wait for rejoin as a slave
success = False
for i in range( 20 ):
role = util.get_role_of_server( server )
if role == c.ROLE_SLAVE:
ts_after = util.get_timestamp_of_pgs( server )
if ts_after != -1 and ts_before != ts_after:
success = True
break
time.sleep( 1 )
self.assertEqual( success, True, 'failed to rejoin as a slave' )
util.log( 'succeeded : pgs%d joined as a slave.' % server['id'] )
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_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 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 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 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 = 1
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 = 1
ok = self.__check_quorum(m, expected)
self.assertTrue(ok, 'rollback quorum fail. expected:%s' % (expected))
# Get new timestamp
new_timestamps = {}
for s in self.cluster['servers']:
ts = util.get_timestamp_of_pgs( s )
new_timestamps[s['id']] = ts
# Compare old timestamps and new timestamps
for s in self.cluster['servers']:
old_ts = old_timestamps[s['id']]
new_ts = new_timestamps[s['id']]
if master in hanging_servers and len(running_servers) != 0:
self.assertNotEqual(old_ts, new_ts, 'Timestamp of a hanging server has not changed. %d->%d' % (old_ts, new_ts))
else:
self.assertEqual(old_ts, new_ts, 'Timestamp of a running server has changed. %d->%d' % (old_ts, new_ts))
# 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_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' )
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 quorum
expected = 1
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_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)
target_server = util.get_server_by_role(self.cluster['servers'], 'slave')
self.assertNotEquals(target_server, None, 'Get slave fail.')
target = target_server['id']
for i in range(30):
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):
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 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]]
s = util.get_server_by_role(servers, 'slave')
target = s['id']
for i in range(30):
print ''
util.log("(2 copy) Loop:%d, target pgs:%d" % (i, target))
# 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 failover_while_hang(self, server):
# timestamp before hang
ts_before = util.get_timestamp_of_pgs(server)
self.assertNotEqual(
ts_before, -1,
'failed to get a timestamp of pgs(%d), ts_before:%d' %
(server['id'], ts_before))
# hang
util.log('pgs(id:%d, ip:%s, port:%d) is going to hang.' %
(server['id'], server['ip'], server['smr_mgmt_port']))
smr = smr_mgmt.SMR(server['id'])
ret = smr.connect(server['ip'], server['smr_mgmt_port'])
self.assertEqual(
ret, 0, 'failed to connect to master. %s:%d' %
(server['ip'], server['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(4)
# check state F
max_try = 20
expected = 'F'
for i in range(0, max_try):
state = util.get_smr_state(server, self.leader_cm)
if expected == state:
break
time.sleep(1)
self.assertEquals(
expected, state, 'server%d - state:%s, expected:%s' %
(server['id'], state, expected))
util.log('succeeded : pgs%d state changed to F.' % server['id'])
# shutdown
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.assertEquals(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):
state = util.get_smr_state(server, self.leader_cm)
if expected == state:
break
time.sleep(1)
self.assertEquals(
expected, state, 'server%d - state:%s, expected:%s' %
(server['id'], state, expected))
util.log('succeeded : pgs%d state changed to F.' % server['id'])
# 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.assertEquals(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.assertEquals(ret, 0, 'failed to connect to redis')
# check state N
max_try = 20
expected = 'N'
for i in range(0, max_try):
state = util.get_smr_state(server, self.leader_cm)
if expected == state:
break
time.sleep(1)
self.assertEquals(
expected, state, 'server%d - state:%s, expected:%s' %
(server['id'], state, expected))
util.log('succeeded : pgs%d state changed to N.' % server['id'])
# wait for rejoin as a slave
success = False
for i in range(20):
role = util.get_role_of_server(server)
if role == c.ROLE_SLAVE:
ts_after = util.get_timestamp_of_pgs(server)
if ts_after != -1 and ts_before != ts_after:
success = True
break
time.sleep(1)
self.assertEqual(success, True, 'failed to rejoin as a slave')
util.log('succeeded : pgs%d joined as a slave.' % server['id'])
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_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 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)
# timestamp before hang
ts_before = util.get_timestamp_of_pgs(s1)
self.assertNotEqual(
ts_before, -1,
'failed to get a timestamp of pgs(%d), ts_before:%d' %
(s1['id'], ts_before))
# hang
util.log('pgs(id:%d, ip:%s, port:%d) is going to hang.' %
(s1['id'], s1['ip'], s1['smr_mgmt_port']))
smr = smr_mgmt.SMR(s1['id'])
ret = smr.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.write('fi delay sleep 1 6000\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(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_before != ts_after:
success = True
break
time.sleep(1)
self.assertEqual(success, True, 'failed to rejoin as a slave')
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))
# check new values
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']))
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