def corrupt_cas_is_healed_on_reboot(self):
self.log.info('Start corrupt_cas_is_healed_on_reboot')
KEY_NAME = 'key1'
client = SDKClient([self.cluster.master], 'default')
# set a key
client.memcached(KEY_NAME).set(KEY_NAME, 0, 0,
json.dumps({'value': 'value1'}))
# figure out which node it is on
mc_active = client.memcached(KEY_NAME)
# set the CAS to -2 and then mutate to increment to -1
# and then it should stop there
self._corrupt_max_cas(mc_active, KEY_NAME)
# print 'max cas k2', mc_active.getMeta('k2')[4]
# CAS should be 0 now, do some gets and sets to verify
# that nothing bad happens
# self._restart_memcache('default')
remote = RemoteMachineShellConnection(self.cluster.master)
remote.stop_server()
self.sleep(30, "Wait for server to stop")
remote.start_server()
self.sleep(30, "Wait for server to start")
client = SDKClient([self.cluster.master], 'default')
mc_active = client.memcached(KEY_NAME)
maxCas = mc_active.getMeta(KEY_NAME)[4]
self.assertTrue(maxCas == 0,
'max cas after reboot is {0} != 0'.format(maxCas))
def corrupt_cas_is_healed_on_rebalance_out_in(self):
self.log.info('Start corrupt_cas_is_healed_on_rebalance_out_in')
KEY_NAME = 'key1'
rest = RestConnection(self.master)
client = SDKClient(rest, 'default')
# set a key
client.memcached(KEY_NAME).set(KEY_NAME, 0, 0,
json.dumps({'value': 'value1'}))
# figure out which node it is on
mc_active = client.memcached(KEY_NAME)
mc_replica = client.memcached(KEY_NAME, replica_index=0)
# set the CAS to -2 and then mutate to increment to -1 and
# then it should stop there
self._corrupt_max_cas(mc_active, KEY_NAME)
# CAS should be 0 now, do some gets and sets to verify that
# nothing bad happens
resp = mc_active.get(KEY_NAME)
self.log.info('get for {0} is {1}'.format(KEY_NAME, resp))
# remove that node
self.log.info('Remove the node with -1 max cas')
rebalance = self.cluster.async_rebalance(self.servers[-1:], [],
[self.cluster.master])
rebalance.result()
replica_CAS = mc_replica.getMeta(KEY_NAME)[4]
# add the node back
self.log.info('Add the node back, the max_cas should be healed')
rebalance = self.cluster.async_rebalance(self.servers[-1:],
[self.cluster.master], [])
rebalance.result()
# verify the CAS is good
client = SDKClient(rest, 'default')
mc_active = client.memcached(KEY_NAME)
active_CAS = mc_active.getMeta(KEY_NAME)[4]
self.assertTrue(
replica_CAS == active_CAS,
'cas mismatch active {0} replica {1}'.format(
active_CAS, replica_CAS))
class OpsChangeCasTests(CasBaseTest):
def setUp(self):
super(OpsChangeCasTests, self).setUp()
self.key = "test_cas"
self.expire_time = self.input.param("expire_time", 35)
self.item_flag = self.input.param("item_flag", 0)
self.load_gen = doc_generator(self.key, 0, self.num_items,
doc_size=self.doc_size)
self.node_data = dict()
for node in self.cluster_util.get_kv_nodes():
shell = RemoteMachineShellConnection(node)
cb_stat = Cbstats(shell)
self.node_data[node.ip] = dict()
self.node_data[node.ip]["shell"] = shell
self.node_data[node.ip]["cb_stat"] = Cbstats(shell)
self.node_data[node.ip]["active"] = cb_stat.vbucket_list(
self.bucket,
"active")
self.node_data[node.ip]["replica"] = cb_stat.vbucket_list(
self.bucket,
"replica")
if self.sdk_client_pool:
self.client = self.sdk_client_pool.get_client_for_bucket(
self.bucket)
else:
self.client = SDKClient([self.cluster.master], self.bucket)
def tearDown(self):
# Close opened shell connections
for node_ip in self.node_data.keys():
self.node_data[node_ip]["shell"].disconnect()
# Close SDK client connection
self.client.close()
super(OpsChangeCasTests, self).tearDown()
def test_meta_rebalance_out(self):
KEY_NAME = 'key1'
for i in range(10):
# set a key
value = 'value' + str(i)
self.client.memcached(KEY_NAME).set(KEY_NAME, 0, 0, json.dumps({'value':value}))
vbucket_id = self.client._get_vBucket_id(KEY_NAME)
mc_active = self.client.memcached(KEY_NAME)
mc_replica = self.client.memcached_for_replica_vbucket(vbucket_id)
cas_active = mc_active.getMeta(KEY_NAME)[4]
max_cas = int(mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(KEY_NAME)) + ':max_cas'] )
self.assertTrue(cas_active == max_cas, '[ERROR]Max cas is not 0 it is {0}'.format(cas_active))
# remove that node
self.log.info('Remove the node with active data')
rebalance = self.cluster.async_rebalance(self.servers[-1:],
[],
[self.master])
rebalance.result()
replica_cas = mc_replica.getMeta(KEY_NAME)[4]
get_meta_resp = mc_replica.getMeta(KEY_NAME,
request_extended_meta_data=False)
# Add the node back
self.log.info('Add the node back, the max_cas should be healed')
rebalance = self.cluster.async_rebalance(self.servers[-1:],
[self.master], [])
if rebalance.result is False:
self.log_failure("Node add-back rebalance failed")
# verify the CAS is good
mc_active = self.client.memcached(KEY_NAME)
active_cas = mc_active.getMeta(KEY_NAME)[4]
if replica_cas == active_cas:
self.log_failure("CAS mismatch. Active: %s, Replica: %s"
% (active_cas, replica_cas))
self.validate_test_failure()
def test_meta_failover(self):
KEY_NAME = 'key2'
for i in range(10):
# set a key
value = 'value' + str(i)
client.memcached(KEY_NAME).set(KEY_NAME, 0, 0,json.dumps({'value':value}))
vbucket_id = client._get_vBucket_id(KEY_NAME)
#print 'vbucket_id is {0}'.format(vbucket_id)
mc_active = client.memcached(KEY_NAME)
mc_master = client.memcached_for_vbucket( vbucket_id )
mc_replica = client.memcached_for_replica_vbucket(vbucket_id)
cas_active = mc_active.getMeta(KEY_NAME)[4]
#print 'cas_a {0} '.format(cas_active)
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(client._get_vBucket_id(KEY_NAME)) + ':max_cas'] )
self.assertTrue(cas_active == max_cas, '[ERROR]Max cas is not 0 it is {0}'.format(cas_active))
# failover that node
self.log.info('Failing over node with active data {0}'.format(self.master))
self.cluster.failover(self.servers, [self.master])
self.log.info('Remove the node with active data {0}'.format(self.master))
rebalance = self.cluster.async_rebalance(self.servers[:], [] ,[self.master])
rebalance.result()
self.sleep(60)
replica_CAS = mc_replica.getMeta(KEY_NAME)[4]
#print 'replica CAS {0}'.format(replica_CAS)
# add the node back
self.log.info('Add the node back, the max_cas should be healed')
rebalance = self.cluster.async_rebalance(self.servers[-1:], [self.master], [])
rebalance.result()
# verify the CAS is good
mc_active = client.memcached(KEY_NAME)
active_CAS = mc_active.getMeta(KEY_NAME)[4]
#print 'active cas {0}'.format(active_CAS)
get_meta_resp = mc_active.getMeta(KEY_NAME,request_extended_meta_data=False)
#print 'replica CAS {0}'.format(replica_CAS)
#print 'replica ext meta {0}'.format(get_meta_resp)
self.assertTrue(replica_CAS == active_CAS, 'cas mismatch active: {0} replica {1}'.format(active_CAS,replica_CAS))
self.assertTrue( get_meta_resp[5] == 1, msg='Metadata indicate conflict resolution is not set')
def test_meta_soft_restart(self):
KEY_NAME = 'key2'
for i in range(10):
# set a key
value = 'value' + str(i)
client.memcached(KEY_NAME).set(KEY_NAME, 0, 0,json.dumps({'value':value}))
vbucket_id = client._get_vBucket_id(KEY_NAME)
#print 'vbucket_id is {0}'.format(vbucket_id)
mc_active = client.memcached(KEY_NAME)
mc_master = client.memcached_for_vbucket( vbucket_id )
mc_replica = client.memcached_for_replica_vbucket(vbucket_id)
cas_pre = mc_active.getMeta(KEY_NAME)[4]
#print 'cas_a {0} '.format(cas_pre)
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(client._get_vBucket_id(KEY_NAME)) + ':max_cas'] )
self.assertTrue(cas_pre == max_cas, '[ERROR]Max cas is not 0 it is {0}'.format(cas_pre))
# restart nodes
self._restart_server(self.servers[:])
# verify the CAS is good
mc_active = client.memcached(KEY_NAME)
cas_post = mc_active.getMeta(KEY_NAME)[4]
#print 'post cas {0}'.format(cas_post)
get_meta_resp = mc_active.getMeta(KEY_NAME,request_extended_meta_data=False)
#print 'post CAS {0}'.format(cas_post)
#print 'post ext meta {0}'.format(get_meta_resp)
self.assertTrue(cas_pre == cas_post, 'cas mismatch active: {0} replica {1}'.format(cas_pre, cas_post))
# extended meta is not supported self.assertTrue( get_meta_resp[5] == 1, msg='Metadata indicate conflict resolution is not set')
def test_meta_hard_restart(self):
KEY_NAME = 'key2'
for i in range(10):
# set a key
value = 'value' + str(i)
client.memcached(KEY_NAME).set(KEY_NAME, 0, 0,json.dumps({'value':value}))
vbucket_id = client._get_vBucket_id(KEY_NAME)
#print 'vbucket_id is {0}'.format(vbucket_id)
mc_active = client.memcached(KEY_NAME)
mc_master = client.memcached_for_vbucket( vbucket_id )
mc_replica = client.memcached_for_replica_vbucket(vbucket_id)
cas_pre = mc_active.getMeta(KEY_NAME)[4]
#print 'cas_a {0} '.format(cas_pre)
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(client._get_vBucket_id(KEY_NAME)) + ':max_cas'] )
self.assertTrue(cas_pre == max_cas, '[ERROR]Max cas is not 0 it is {0}'.format(cas_pre))
# reboot nodes
self._reboot_server()
self.sleep(60)
# verify the CAS is good
mc_active = client.memcached(KEY_NAME)
cas_post = mc_active.getMeta(KEY_NAME)[4]
#print 'post cas {0}'.format(cas_post)
get_meta_resp = mc_active.getMeta(KEY_NAME,request_extended_meta_data=False)
#print 'post CAS {0}'.format(cas_post)
#print 'post ext meta {0}'.format(get_meta_resp)
self.assertTrue(cas_pre == cas_post, 'cas mismatch active: {0} replica {1}'.format(cas_pre, cas_post))
# extended meta is not supported self.assertTrue( get_meta_resp[5] == 1, msg='Metadata indicate conflict resolution is not set')
def test_cas_set(self):
"""
Test Incremental sets on cas and max cas values for keys
"""
self._load_ops(self.load_gen, 'update', mutations=20)
self._check_cas(self.load_gen, check_conflict_resolution=False)
self.validate_test_failure()
def test_cas_updates(self):
"""
Test Incremental updates on cas and max cas values for keys
"""
self._load_ops(self.load_gen, 'update', mutations=20)
self._load_ops(self.load_gen, 'replace', mutations=20)
self._check_cas(self.load_gen, check_conflict_resolution=False)
self.validate_test_failure()
def test_cas_deletes(self):
"""
Test Incremental deletes on cas and max cas values for keys
"""
self._load_ops(self.load_gen, 'create')
self._load_ops(self.load_gen, 'replace', mutations=20)
self._check_cas(self.load_gen, check_conflict_resolution=False)
self._load_ops(self.load_gen, 'delete')
self._check_cas(self.load_gen, check_conflict_resolution=False,
docs_deleted=True)
self.validate_test_failure()
''' Test expiry on cas and max cas values for keys
'''
def test_cas_expiry(self):
self._load_ops(self.load_gen, 'create')
self._load_ops(self.load_gen, 'expiry')
self._check_cas(self.load_gen, check_conflict_resolution=False)
self._check_expiry(self.load_gen)
self.validate_test_failure()
def test_cas_touch(self):
"""
Test touch on cas and max cas values for keys
"""
self.log.info('Starting test-touch')
self._load_ops(self.load_gen, 'update', mutations=20)
self._load_ops(self.load_gen, 'touch')
self._check_cas(self.load_gen, check_conflict_resolution=False)
self.validate_test_failure()
def test_cas_getMeta(self):
"""
Test getMeta on cas and max cas values for keys
"""
self.log.info('Starting test-getMeta')
self._load_ops(ops='set', mutations=20)
self._check_cas(check_conflict_resolution=False)
#self._load_ops(ops='add')
self._load_ops(ops='replace',mutations=20)
self._check_cas(check_conflict_resolution=False)
self._load_ops(ops='delete')
self._check_cas(check_conflict_resolution=False)
def test_cas_setMeta_lower(self):
self.log.info(' Starting test-getMeta')
# set some kv
self._load_ops(ops='set', mutations=1)
#self._check_cas(check_conflict_resolution=False)
k=0
while k<10:
key = "{0}{1}".format(self.prefix, k)
k += 1
vbucket_id = self.client._get_vBucket_id(key)
self.log.info('For key {0} the vbucket is {1}'.format( key,vbucket_id ))
#print 'vbucket_id is {0}'.format(vbucket_id)
mc_active = self.client.memcached(key)
mc_master = self.client.memcached_for_vbucket( vbucket_id )
#mc_replica = self.client.memcached_for_replica_vbucket(vbucket_id)
TEST_SEQNO = 123
TEST_CAS = k
rc = mc_active.getMeta(key)
cas = rc[4] + 1
self.log.info('Key {0} retrieved CAS is {1} and will set CAS to {2}'.format(key, rc[4], cas))
rev_seqno = rc[3]
# do a set meta based on the existing CAS
set_with_meta_resp = mc_active.setWithMeta(key, '123456789', 0, 0, 123, cas)
# check what get meta say
rc = mc_active.getMeta(key)
cas_post_meta = rc[4]
self.log.info('Getmeta CAS is {0}'.format(cas_post_meta))
self.assertTrue( cas_post_meta == cas, 'Meta expected {0} actual {1}'.format( cas, cas_post_meta))
# and what stats says
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.log.info('Max CAS for key {0} vbucket is {1}'.format( key, max_cas))
self.assertTrue(cas_post_meta >= max_cas, '[ERROR]Max cas is not higher it is lower than {0}'.format(cas_post_meta))
self.assertTrue(max_cas == cas, '[ERROR]Max cas is not equal to original cas {0}'.format(cas))
# do another mutation and compare
mc_active.set(key, 0, 0,json.dumps({'value':'value3'}))
cas = mc_active.getMeta(key)[4]
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.assertTrue(max_cas == cas, '[ERROR]Max cas is not equal to cas {0}'.format(cas))
# and then mix in a set with meta
set_with_meta_resp = mc_active.setWithMeta(key, '123456789', 0, 0, 225, max_cas+1)
cas_post_meta = mc_active.getMeta(key)[4]
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.assertTrue(cas_post_meta == max_cas, '[ERROR]Max cas is not higher it is lower than {0}'.format(cas_post_meta))
# and one more mutation for good measure
mc_active.set(key, 0, 0,json.dumps({'value':'value3'}))
cas = mc_active.getMeta(key)[4]
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.assertTrue(max_cas == cas, '[ERROR]Max cas is not equal to cas {0}'.format(cas))
def test_cas_setMeta_higher(self):
self.log.info(' Starting test-getMeta')
self._load_ops(ops='set', mutations=20)
self._check_cas(check_conflict_resolution=False)
k=0
while k<10:
key = "{0}{1}".format(self.prefix, k)
k += 1
vbucket_id = self.client._get_vBucket_id(key)
#print 'vbucket_id is {0}'.format(vbucket_id)
mc_active = self.client.memcached(key)
mc_master = self.client.memcached_for_vbucket( vbucket_id )
#mc_replica = self.client.memcached_for_replica_vbucket(vbucket_id)
get_meta_1 = mc_active.getMeta(key,request_extended_meta_data=False)
#print 'cr {0}'.format(get_meta_1)
#print '-'*100
TEST_SEQNO = 123
TEST_CAS = 9966180844186042368
cas = mc_active.getMeta(key)[4]
#set_with_meta_resp = mc_active.set_with_meta(key, 0, 0, TEST_SEQNO, TEST_CAS, '123456789',vbucket_id,
# add_extended_meta_data=True, conflict_resolution_mode=1)
set_with_meta_resp = mc_active.setWithMeta(key, '123456789', 0, 0, TEST_SEQNO, TEST_CAS)
cas_post_meta = mc_active.getMeta(key)[4]
get_meta_2 = mc_active.getMeta(key,request_extended_meta_data=False)
#print 'cr2 {0}'.format(get_meta_2)
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.assertTrue(cas_post_meta == max_cas, '[ERROR]Max cas is not equal it is {0}'.format(cas_post_meta))
self.assertTrue(max_cas > cas, '[ERROR]Max cas is not higher than original cas {0}'.format(cas))
mc_active.set(key, 0, 0,json.dumps({'value':'value3'}))
cas = mc_active.getMeta(key)[4]
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.assertTrue(max_cas == cas, '[ERROR]Max cas is not equal to cas {0}'.format(cas))
set_with_meta_resp = mc_active.setWithMeta(key, '123456789', 0, 0, TEST_SEQNO, max_cas+1)
#set_with_meta_resp = mc_active.set_with_meta(key, 0, 0, 125, TEST_CAS+1, '223456789',vbucket_id,
# add_extended_meta_data=True, conflict_resolution_mode=1)
cas_post_meta = mc_active.getMeta(key)[4]
get_meta_3 = mc_active.getMeta(key,request_extended_meta_data=False)
#print 'cr3 {0}'.format(get_meta_3)
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.assertTrue(cas_post_meta == max_cas, '[ERROR]Max cas is not lower it is higher than {0}'.format(cas_post_meta))
#self.assertTrue(max_cas == cas, '[ERROR]Max cas is not equal to original cas {0}'.format(cas))
mc_active.set(key, 0, 0,json.dumps({'value':'value3'}))
cas = mc_active.getMeta(key)[4]
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.assertTrue(max_cas == cas, '[ERROR]Max cas is not equal to cas {0}'.format(cas))
''' Test deleteMeta on cas and max cas values for keys
'''
def test_cas_deleteMeta(self):
self.log.info(' Starting test-deleteMeta')
# load 20 kvs and check the CAS
self._load_ops(ops='set', mutations=20)
self.sleep(60)
self._check_cas(check_conflict_resolution=False)
k = 0
test_cas = 456
while k < 1:
key = "{0}{1}".format(self.prefix, k)
k += 1
vbucket_id = self.client._get_vBucket_id(key)
mc_active = self.client.memcached(key)
mc_master = self.client.memcached_for_vbucket( vbucket_id )
mc_replica = self.client.memcached_for_replica_vbucket(vbucket_id)
TEST_SEQNO = 123
test_cas = test_cas + 1
# get the meta data
cas = mc_active.getMeta(key)[4] + 1
set_with_meta_resp = mc_active.setWithMeta(key, '123456789', 0, 0, TEST_SEQNO, cas)
cas_post_meta = mc_active.getMeta(key)[4]
# verify the observed CAS is as set
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.assertTrue(max_cas == cas, '[ERROR]Max cas {0} is not equal to original cas {1}'.format(max_cas, cas))
mc_active.set(key, 0, 0,json.dumps({'value':'value3'}))
cas = mc_active.getMeta(key)[4]
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.assertTrue(max_cas == cas, '[ERROR]Max cas is not equal to cas {0}'.format(cas))
# what is test cas for? Commenting out for now
"""
set_with_meta_resp = mc_active.setWithMeta(key, '123456789', 0, 0, TEST_SEQNO, test_cas)
cas_post_meta = mc_active.getMeta(key)[4]
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.assertTrue(cas_post_meta < max_cas, '[ERROR]Max cas is not higher it is lower than {0}'.format(cas_post_meta))
self.assertTrue(max_cas == cas, '[ERROR]Max cas is not equal to original cas {0}'.format(cas))
"""
# test the delete
mc_active.set(key, 0, 0,json.dumps({'value':'value3'}))
cas = mc_active.getMeta(key)[4]
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.assertTrue(max_cas == cas, '[ERROR]Max cas is not equal to cas {0}'.format(cas))
#
self.log.info('Doing delete with meta, using a lower CAS value')
get_meta_pre = mc_active.getMeta(key)[4]
del_with_meta_resp = mc_active.del_with_meta(key, 0, 0, TEST_SEQNO, test_cas, test_cas+1)
get_meta_post = mc_active.getMeta(key)[4]
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.assertTrue(max_cas > test_cas+1, '[ERROR]Max cas {0} is not greater than delete cas {1}'.format(max_cas, test_cas))
''' Testing skipping conflict resolution, whereby the last write wins, and it does neither cas CR nor rev id CR
'''
def test_cas_skip_conflict_resolution(self):
self.log.info(' Starting test_cas_skip_conflict_resolution ..')
self._load_ops(ops='set', mutations=20)
self._check_cas(check_conflict_resolution=False)
k=0
#Check for first 20 keys
while k<20:
key = "{0}{1}".format(self.prefix, k)
k += 1
vbucket_id = self.client._get_vBucket_id(key)
mc_active = self.client.memcached(key)
mc_master = self.client.memcached_for_vbucket( vbucket_id )
mc_replica = self.client.memcached_for_replica_vbucket(vbucket_id)
low_seq=12
cas = mc_active.getMeta(key)[4]
pre_seq = mc_active.getMeta(key)[3]
all = mc_active.getMeta(key)
self.log.info('all meta data before set_meta_force {0}'.format(all))
self.log.info('Forcing conflict_resolution to allow insertion of lower Seq Number')
lower_cas = int(cas)-1
#import pdb;pdb.set_trace()
#set_with_meta_resp = mc_active.set_with_meta(key, 0, 0, low_seq, lower_cas, '123456789',vbucket_id)
set_with_meta_resp = mc_active.setWithMeta(key, '123456789', 0, 0, low_seq, lower_cas, 3)
cas_post_meta = mc_active.getMeta(key)[4]
all_post_meta = mc_active.getMeta(key)
post_seq = mc_active.getMeta(key)[3]
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.log.info('Expect No conflict_resolution to occur, and the last updated mutation to be the winner..')
#print 'cas meta data after set_meta_force {0}'.format(cas_post_meta)
#print 'all meta data after set_meta_force {0}'.format(all_post_meta)
self.log.info('all meta data after set_meta_force {0}'.format(all_post_meta))
self.assertTrue(max_cas == cas, '[ERROR]Max cas {0} is not equal to original cas {1}'.format(max_cas, cas))
self.assertTrue(pre_seq > post_seq, '[ERROR]Pre rev id {0} is not greater than post rev id {1}'.format(pre_seq, post_seq))
''' Testing revid based conflict resolution with timeSync enabled, where cas on either mutations match and it does rev id CR
'''
def test_revid_conflict_resolution(self):
self.log.info(' Starting test_cas_revid_conflict_resolution ..')
self._load_ops(ops='set', mutations=20)
self._check_cas(check_conflict_resolution=False)
k=0
#Check for first 20 keys
while k<20:
key = "{0}{1}".format(self.prefix, k)
k += 1
vbucket_id = self.client._get_vBucket_id(key)
mc_active = self.client.memcached(key)
mc_master = self.client.memcached_for_vbucket( vbucket_id )
mc_replica = self.client.memcached_for_replica_vbucket(vbucket_id)
new_seq=121
cas = mc_active.getMeta(key)[4]
pre_seq = mc_active.getMeta(key)[3]
all = mc_active.getMeta(key)
self.log.info('all meta data before set_meta_force {0}'.format(all))
self.log.info('Forcing conflict_resolution to rev-id by matching inserting cas ')
set_with_meta_resp = mc_active.set_with_meta(key, 0, 0, new_seq, cas, '123456789',vbucket_id,
add_extended_meta_data=True, conflict_resolution_mode=1)
cas_post_meta = mc_active.getMeta(key)[4]
all_post_meta = mc_active.getMeta(key)
post_seq = mc_active.getMeta(key)[3]
get_meta_2 = mc_active.getMeta(key,request_extended_meta_data=False)
#print 'cr2 {0}'.format(get_meta_2)
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.log.info('Expect No conflict_resolution to occur, and the last updated mutation to be the winner..')
self.log.info('all meta data after set_meta_force {0}'.format(all_post_meta))
self.assertTrue(max_cas == cas, '[ERROR]Max cas {0} is not equal to original cas {1}'.format(max_cas, cas))
self.assertTrue(pre_seq < post_seq, '[ERROR]Pre rev id {0} is not greater than post rev id {1}'.format(pre_seq, post_seq))
''' Testing conflict resolution, where timeSync is enabled and cas is lower but higher revid, expect Higher Cas to Win
'''
def test_cas_conflict_resolution(self):
self.log.info(' Starting test_cas_conflict_resolution ..')
self._load_ops(ops='set', mutations=20)
self._check_cas(check_conflict_resolution=False)
k=0
#Check for first 20 keys
while k<20:
key = "{0}{1}".format(self.prefix, k)
k += 1
vbucket_id = self.client._get_vBucket_id(key)
mc_active = self.client.memcached(key)
mc_master = self.client.memcached_for_vbucket( vbucket_id )
mc_replica = self.client.memcached_for_replica_vbucket(vbucket_id)
new_seq=121
cas = mc_active.getMeta(key)[4]
pre_seq = mc_active.getMeta(key)[3]
all = mc_active.getMeta(key)
self.log.info('all meta data before set_meta_force {0}'.format(all))
lower_cas = int(cas)-100
self.log.info('Forcing lower rev-id to win with higher CAS value, instead of higher rev-id with Lower Cas ')
#set_with_meta_resp = mc_active.set_with_meta(key, 0, 0, new_seq, lower_cas, '123456789',vbucket_id)
try:
set_with_meta_resp = mc_active.setWithMeta(key, '123456789', 0, 0, new_seq, lower_cas)
except mc_bin_client.MemcachedError as e:
# this is expected
pass
cas_post_meta = mc_active.getMeta(key)[4]
all_post_meta = mc_active.getMeta(key)
post_seq = mc_active.getMeta(key)[3]
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.log.info('Expect CAS conflict_resolution to occur, and the first mutation to be the winner..')
self.log.info('all meta data after set_meta_force {0}'.format(all_post_meta))
self.assertTrue(max_cas == cas, '[ERROR]Max cas {0} is not equal to original cas {1}'.format(max_cas, cas))
#self.assertTrue(pre_seq < post_seq, '[ERROR]Pre rev id {0} is not greater than post rev id {1}'.format(pre_seq, post_seq))
''' Testing revid based conflict resolution with timeSync enabled, where cas on either mutations match and it does rev id CR
and retains it after a restart server'''
def test_restart_revid_conflict_resolution(self):
self.log.info(' Starting test_restart_revid_conflict_resolution ..')
self._load_ops(ops='set', mutations=20)
k = 0
key = "{0}{1}".format(self.prefix, k)
vbucket_id = self.client._get_vBucket_id(key)
mc_active = self.client.memcached(key)
mc_master = self.client.memcached_for_vbucket( vbucket_id )
mc_replica = self.client.memcached_for_replica_vbucket(vbucket_id)
# set a key
value = 'value0'
client.memcached(key).set(key, 0, 0,json.dumps({'value':value}))
vbucket_id = client._get_vBucket_id(key)
#print 'vbucket_id is {0}'.format(vbucket_id)
mc_active = client.memcached(key)
mc_master = client.memcached_for_vbucket( vbucket_id )
mc_replica = client.memcached_for_replica_vbucket(vbucket_id)
new_seq=121
pre_cas = mc_active.getMeta(key)[4]
pre_seq = mc_active.getMeta(key)[3]
pre_max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
all = mc_active.getMeta(key)
get_meta_1 = mc_active.getMeta(key,request_extended_meta_data=False)
#print 'cr {0}'.format(get_meta_1)
self.log.info('all meta data before set_meta_force {0}'.format(all))
self.log.info('max_cas before set_meta_force {0}'.format(pre_max_cas))
self.log.info('Forcing conflict_resolution to rev-id by matching inserting cas ')
try:
set_with_meta_resp = mc_active.set_with_meta(key, 0, 0, new_seq, pre_cas, '123456789',vbucket_id)
except mc_bin_client.MemcachedError as e:
# this is expected
pass
cas_post = mc_active.getMeta(key)[4]
all_post_meta = mc_active.getMeta(key)
post_seq = mc_active.getMeta(key)[3]
get_meta_2 = mc_active.getMeta(key,request_extended_meta_data=False)
#print 'cr {0}'.format(get_meta_2)
max_cas_post = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.log.info('Expect RevId conflict_resolution to occur, and the last updated mutation to be the winner..')
self.log.info('all meta data after set_meta_force {0}'.format(all_post_meta))
#self.assertTrue(max_cas_post == pre_cas, '[ERROR]Max cas {0} is not equal to original cas {1}'.format(max_cas_post, pre_cas))
#self.assertTrue(pre_seq < post_seq, '[ERROR]Pre rev id {0} is not greater than post rev id {1}'.format(pre_seq, post_seq))
# Restart Nodes
self._restart_server(self.servers[:])
# verify the CAS is good
mc_active = client.memcached(key)
cas_restart = mc_active.getMeta(key)[4]
#print 'post cas {0}'.format(cas_post)
get_meta_resp = mc_active.getMeta(key,request_extended_meta_data=False)
#print 'post CAS {0}'.format(cas_post)
#print 'post ext meta {0}'.format(get_meta_resp)
self.assertTrue(pre_cas == cas_post, 'cas mismatch active: {0} replica {1}'.format(pre_cas, cas_post))
#self.assertTrue( get_meta_resp[5] == 1, msg='Metadata indicate conflict resolution is not set')
''' Testing revid based conflict resolution with timeSync enabled, where cas on either mutations match and it does rev id CR
and retains it after a rebalance server'''
def test_rebalance_revid_conflict_resolution(self):
self.log.info(' Starting test_rebalance_revid_conflict_resolution ..')
self._load_ops(ops='set', mutations=20)
key = 'key1'
value = 'value'
client.memcached(key).set(key, 0, 0,json.dumps({'value':value}))
vbucket_id = client._get_vBucket_id(key)
#print 'vbucket_id is {0}'.format(vbucket_id)
mc_active = client.memcached(key)
mc_master = client.memcached_for_vbucket( vbucket_id )
mc_replica = client.memcached_for_replica_vbucket(vbucket_id)
new_seq=121
pre_cas = mc_active.getMeta(key)[4]
pre_seq = mc_active.getMeta(key)[3]
pre_max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
all = mc_active.getMeta(key)
get_meta_1 = mc_active.getMeta(key,request_extended_meta_data=False)
#print 'cr {0}'.format(get_meta_1)
self.log.info('all meta data before set_meta_force {0}'.format(all))
self.log.info('max_cas before set_meta_force {0}'.format(pre_max_cas))
self.log.info('Forcing conflict_resolution to rev-id by matching inserting cas ')
#set_with_meta_resp = mc_active.set_with_meta(key, 0, 0, new_seq, pre_cas, '123456789',vbucket_id)
set_with_meta_resp = mc_active.setWithMeta(key, '123456789', 0, 0, new_seq, pre_cas)
cas_post = mc_active.getMeta(key)[4]
all_post_meta = mc_active.getMeta(key)
post_seq = mc_active.getMeta(key)[3]
get_meta_2 = mc_active.getMeta(key,request_extended_meta_data=False)
#print 'cr {0}'.format(get_meta_2)
max_cas_post = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.log.info('Expect RevId conflict_resolution to occur, and the last updated mutation to be the winner..')
self.log.info('all meta data after set_meta_force {0}'.format(all_post_meta))
self.assertTrue(max_cas_post == pre_cas, '[ERROR]Max cas {0} is not equal to original cas {1}'.format(max_cas_post, pre_cas))
self.assertTrue(pre_seq < post_seq, '[ERROR]Pre rev id {0} is not greater than post rev id {1}'.format(pre_seq, post_seq))
# remove that node
self.log.info('Remove the node with active data')
rebalance = self.cluster.async_rebalance(self.servers[-1:], [] ,[self.master])
rebalance.result()
self.sleep(120)
replica_CAS = mc_replica.getMeta(key)[4]
get_meta_resp = mc_replica.getMeta(key,request_extended_meta_data=False)
#print 'replica CAS {0}'.format(replica_CAS)
#print 'replica ext meta {0}'.format(get_meta_resp)
# add the node back
self.log.info('Add the node back, the max_cas should be healed')
rebalance = self.cluster.async_rebalance(self.servers[-1:], [self.master], [])
rebalance.result()
# verify the CAS is good
mc_active = client.memcached(key)
active_CAS = mc_active.getMeta(key)[4]
print 'active cas {0}'.format(active_CAS)
self.assertTrue(replica_CAS == active_CAS, 'cas mismatch active: {0} replica {1}'.format(active_CAS,replica_CAS))
#self.assertTrue( get_meta_resp[5] == 1, msg='Metadata indicate conflict resolution is not set')
''' Testing revid based conflict resolution with timeSync enabled, where cas on either mutations match and it does rev id CR
and retains it after a failover server'''
def test_failover_revid_conflict_resolution(self):
self.log.info(' Starting test_rebalance_revid_conflict_resolution ..')
self._load_ops(ops='set', mutations=20)
key = 'key1'
value = 'value'
self.client.memcached(key).set(key, 0, 0,json.dumps({'value':value}))
vbucket_id = client._get_vBucket_id(key)
#print 'vbucket_id is {0}'.format(vbucket_id)
mc_active = client.memcached(key)
mc_master = client.memcached_for_vbucket( vbucket_id )
mc_replica = client.memcached_for_replica_vbucket(vbucket_id)
new_seq=121
pre_cas = mc_active.getMeta(key)[4]
pre_seq = mc_active.getMeta(key)[3]
pre_max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
all = mc_active.getMeta(key)
get_meta_1 = mc_active.getMeta(key,request_extended_meta_data=False)
#print 'cr {0}'.format(get_meta_1)
self.log.info('all meta data before set_meta_force {0}'.format(all))
self.log.info('max_cas before set_meta_force {0}'.format(pre_max_cas))
self.log.info('Forcing conflict_resolution to rev-id by matching inserting cas ')
#set_with_meta_resp = mc_active.set_with_meta(key, 0, 0, new_seq, pre_cas, '123456789',vbucket_id)
set_with_meta_resp = mc_active.setWithMeta(key, '123456789', 0, 0, new_seq, pre_cas)
cas_post = mc_active.getMeta(key)[4]
all_post_meta = mc_active.getMeta(key)
post_seq = mc_active.getMeta(key)[3]
get_meta_2 = mc_active.getMeta(key,request_extended_meta_data=False)
#print 'cr {0}'.format(get_meta_2)
max_cas_post = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(key)) + ':max_cas'] )
self.log.info('Expect RevId conflict_resolution to occur, and the last updated mutation to be the winner..')
self.log.info('all meta data after set_meta_force {0}'.format(all_post_meta))
self.assertTrue(max_cas_post == pre_cas, '[ERROR]Max cas {0} is not equal to original cas {1}'.format(max_cas_post, pre_cas))
self.assertTrue(pre_seq < post_seq, '[ERROR]Pre rev id {0} is not greater than post rev id {1}'.format(pre_seq, post_seq))
# failover that node
self.log.info('Failing over node with active data {0}'.format(self.master))
self.cluster.failover(self.servers, [self.master])
self.log.info('Remove the node with active data {0}'.format(self.master))
rebalance = self.cluster.async_rebalance(self.servers[:], [] ,[self.master])
rebalance.result()
self.sleep(120)
replica_CAS = mc_replica.getMeta(key)[4]
get_meta_resp = mc_replica.getMeta(key,request_extended_meta_data=False)
#print 'replica CAS {0}'.format(replica_CAS)
#print 'replica ext meta {0}'.format(get_meta_resp)
# add the node back
self.log.info('Add the node back, the max_cas should be healed')
rebalance = self.cluster.async_rebalance(self.servers[-1:], [self.master], [])
rebalance.result()
# verify the CAS is good
mc_active = client.memcached(key)
active_CAS = mc_active.getMeta(key)[4]
#print 'active cas {0}'.format(active_CAS)
self.assertTrue(replica_CAS == active_CAS, 'cas mismatch active: {0} replica {1}'.format(active_CAS,replica_CAS))
#self.assertTrue( get_meta_resp[5] == 1, msg='Metadata indicate conflict resolution is not set')
''' Test getMeta on cas and max cas values for empty vbucket
'''
def test_cas_getMeta_empty_vBucket(self):
self.log.info(' Starting test-getMeta')
self._load_ops(ops='set', mutations=20)
k=0
all_keys = []
while k<10:
k+=1
key = "{0}{1}".format(self.prefix, k)
all_keys.append(key)
vbucket_ids = self.client._get_vBucket_ids(all_keys)
print 'bucket_ids'
for v in vbucket_ids:
print v
print 'done'
i=1111
if i not in vbucket_ids and i <= 1023:
vb_non_existing=i
elif i>1023:
i +=1
else:
self.log.info('ERROR generating empty vbucket id')
vb_non_existing=vbucket_ids.pop()
print 'nominated vb_nonexisting is {0}'.format(vb_non_existing)
mc_active = self.client.memcached(all_keys[0]) #Taking a temp connection to the mc.
#max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(vb_non_existing) + ':max_cas'] )
max_cas = int( mc_active.stats('vbucket-details')['vb_' + str(self.client._get_vBucket_id(all_keys[0])) + ':max_cas'] )
self.assertTrue( max_cas != 0, msg='[ERROR] Max cas is non-zero')
def test_meta_backup(self):
"""
Test addMeta on cas and max cas values for keys
"""
self.log.info('Starting test-getMeta')
self._load_ops(ops='set', mutations=20)
# Do the backup on the bucket
self.shell = RemoteMachineShellConnection(self.cluster.master)
self.buckets = self.bucket_util.buckets
self.couchbase_login_info = "%s:%s" % (self.input.membase_settings.rest_username,
self.input.membase_settings.rest_password)
self.backup_location = "/tmp/backup"
self.command_options = self.input.param("command_options", '')
try:
shell = RemoteMachineShellConnection(self.cluster.master)
self.shell.execute_cluster_backup(
self.couchbase_login_info,
self.backup_location,
self.command_options)
self.sleep(5, "Wait before restore backup")
shell.restore_backupFile(self.couchbase_login_info,
self.backup_location,
[bucket.name for bucket in self.buckets])
self.log.info("Done with restore")
finally:
self._check_cas(check_conflict_resolution=False)
def _check_cas(self, load_gen, check_conflict_resolution=False,
time_sync=None, docs_deleted=False):
"""
Common function to verify the expected values on cas
"""
load_gen = copy.deepcopy(load_gen)
self.log.info('Verifying CAS and max-cas for the keys')
while load_gen.has_next():
key, value = load_gen.next()
cas = self.client.crud("read", key)["cas"]
if docs_deleted:
if cas != 0:
self.log_failure("Max CAS mismatch. %s != 0" % cas)
else:
max_cas = None
vb_for_key = self.bucket_util.get_vbucket_num_for_key(key)
for _, data in self.node_data.items():
if vb_for_key in data["active"]:
vb_stat = data["cb_stat"].vbucket_details(
self.bucket.name)
max_cas = long(vb_stat[str(vb_for_key)]["max_cas"])
break
if cas != max_cas:
self.log_failure("Max CAS mismatch. %s != %s"
% (cas, max_cas))
if check_conflict_resolution:
get_meta_resp = mc_active.getMeta(
key,
request_extended_meta_data=False)
if time_sync == 'enabledWithoutDrift':
if get_meta_resp[5] != 1:
self.log_failure("Metadata indicates "
"conflict resolution is not set")
elif time_sync == 'disabled':
if get_meta_resp[5] != 0:
self.log_failure("Metadata indicates "
"conflict resolution is set")
def _load_ops(self, load_gen, op_type, mutations=1):
"""
Common function to add set delete etc operations on the bucket
"""
mutations = 1
self.log.info("Performing %s for %s times" % (op_type, mutations))
exp = 0
if op_type == "expiry":
op_type = "touch"
exp = self.expire_time
for _ in range(mutations):
tasks_info = self.bucket_util.sync_load_all_buckets(
self.cluster, load_gen, op_type, exp=exp,
persist_to=self.persist_to, replicate_to=self.replicate_to,
durability=self.durability_level,
timeout_secs=self.sdk_timeout,
batch_size=self.num_items,
sdk_client_pool=self.sdk_client_pool)
for task, _ in tasks_info.items():
if task.fail:
self.log_failure("Failures observed during %s" % op_type)
def _check_expiry(self, load_gen):
"""
Check if num_items are expired as expected
"""
self.sleep(self.expire_time, "Wait for docs to expire")
while load_gen.has_next():
key, value = load_gen.next()
vb_for_key = self.bucket_util.get_vbucket_num_for_key(key)
cas = None
for _, data in self.node_data.items():
if vb_for_key in data["active"]:
vb_stat = data["cb_stat"].vbucket_details(self.bucket.name)
cas = long(vb_stat[str(vb_for_key)]["max_cas"])
break
replace_result = self.client.crud(
"replace", key, value,
replicate_to=self.replicate_to,
persist_to=self.persist_to,
durability=self.durability_level,
timeout=self.sdk_timeout,
cas=cas)
if replace_result["status"] is True:
self.log_failure("Replace on %s succeeded using old CAS %s"
% (key, cas))
if SDKException.DocumentNotFoundException \
not in str(replace_result["error"]):
self.log_failure("Invalid exception for %s: %s"
% (key, replace_result))
