def test_CASnotzero(self):
# MB-31149
# observe.observeseqnotests.ObserveSeqNoTests.test_CASnotzero
# set value, append and check CAS value
self.log.info('Starting test_CASnotzero')
# without hello(mutationseqencenumber)
client = VBucketAwareMemcached(RestConnection(self.master), 'default')
KEY_NAME = "test1key"
client.set(KEY_NAME, 0, 0, json.dumps({'value': 'value2'}))
client.generic_request(
client.memcached(KEY_NAME).append, 'test1key', 'appended data')
get_meta_resp = client.generic_request(
client.memcached(KEY_NAME).getMeta, 'test1key')
self.log.info(
'the CAS value without hello(mutationseqencenumber): {} '.format(
get_meta_resp[4]))
self.assertNotEqual(get_meta_resp[4], 0)
# with hello(mutationseqencenumber)
KEY_NAME = "test2key"
client.set(KEY_NAME, 0, 0, json.dumps({'value': 'value1'}))
h = client.sendHellos(
memcacheConstants.PROTOCOL_BINARY_FEATURE_MUTATION_SEQNO)
client.generic_request(
client.memcached(KEY_NAME).append, 'test2key', 'appended data456')
get_meta_resp = client.generic_request(
client.memcached(KEY_NAME).getMeta, 'test2key')
self.log.info(
'the CAS value with hello(mutationseqencenumber): {} '.format(
get_meta_resp[4]))
self.assertNotEqual(get_meta_resp[4], 0)
def test_new_response_fields(self):
self.log.info('\n\nStarting test_new_response_fields')
client = VBucketAwareMemcached(RestConnection(self.master), 'default')
h = client.sendHellos(
memcacheConstants.PROTOCOL_BINARY_FEATURE_MUTATION_SEQNO)
set_resp = self.extract_vbucket_uuid_and_seqno(
client.set('test1key', 0, 0, '123456789'))
# test the inplace operations
test = client.generic_request(
client.memcached('test1key').set, 'test1key', 0, 0,
'totally new value')
replace_resp = self.extract_vbucket_uuid_and_seqno(
client.generic_request(
client.memcached('test1key').replace, 'test1key', 0, 0,
'totally new value'))
self.verify_vbucket_and_seqno(set_resp, replace_resp, 'replace')
append_resp = self.extract_vbucket_uuid_and_seqno(
client.generic_request(
client.memcached('test1key').append, 'test1key',
'appended data'))
self.verify_vbucket_and_seqno(replace_resp, append_resp, 'append')
prepend_resp = self.extract_vbucket_uuid_and_seqno(
client.generic_request(
client.memcached('test1key').prepend, 'test1key',
'prepended data'))
self.verify_vbucket_and_seqno(append_resp, prepend_resp, 'prepend')
# and finally do the delete
delete_resp = self.extract_vbucket_uuid_and_seqno(
client.generic_request(
client.memcached('test1key').delete, 'test1key'))
self.verify_vbucket_and_seqno(set_resp, delete_resp, 'delete')
#meta commands under construction
# test the 'meta' commands
TEST_SEQNO = 123
TEST_CAS = 456
set_with_meta_resp = client.generic_request(
client.memcached('test1keyformeta').set_with_meta,
'test1keyformeta', 0, 0, TEST_SEQNO, TEST_CAS, '123456789')
set_meta_vbucket_uuid, set_meta_seqno = struct.unpack(
'>QQ', set_with_meta_resp[2])
set_with_meta_dict = {
'vbucket_uuid': set_meta_vbucket_uuid,
'seqno': set_meta_seqno
}
get_meta_resp = client.generic_request(
client.memcached('test1keyformeta').getMeta, 'test1keyformeta')
self.assertTrue(TEST_SEQNO == get_meta_resp[3], \
msg='get meta seqno does not match as set. Expected {0}, actual {1}'.format(TEST_SEQNO, get_meta_resp[3]) )
self.assertTrue(TEST_CAS == get_meta_resp[4], \
msg='get meta cas does not match as set. Expected {0}, actual {1}'.format(TEST_CAS, get_meta_resp[4]) )
# def del_with_meta(self, key, exp, flags, seqno, old_cas, new_cas, vbucket= -1):
del_with_meta_resp = client.generic_request(
client.memcached('test1keyformeta').del_with_meta,
'test1keyformeta', 0, 0, TEST_SEQNO, TEST_CAS, TEST_CAS + 1)
vbucket_uuid, seqno = struct.unpack('>QQ', del_with_meta_resp[2])
del_with_meta_dict = {'vbucket_uuid': vbucket_uuid, 'seqno': seqno}
self.verify_vbucket_and_seqno(set_with_meta_dict, del_with_meta_dict,
'set/del with meta')
# do some integer operations
set_resp = self.extract_vbucket_uuid_and_seqno(
client.set('key-for-integer-value', 0, 0, '123'))
incr_resp = client.generic_request(
client.memcached('key-for-integer-value').incr,
'key-for-integer-value')
incr_resp_dict = {'vbucket_uuid': incr_resp[2], 'seqno': incr_resp[3]}
self.verify_vbucket_and_seqno(set_resp, incr_resp_dict, 'incr')
decr_resp = client.generic_request(
client.memcached('key-for-integer-value').decr,
'key-for-integer-value')
decr_resp_dict = {'vbucket_uuid': decr_resp[2], 'seqno': decr_resp[3]}
self.verify_vbucket_and_seqno(incr_resp_dict, decr_resp_dict, 'decr')
add_resp = self.extract_vbucket_uuid_and_seqno(
client.generic_request(
client.memcached('totally new key').add, 'totally new key', 0,
0, 'totally new value'))
self.assertTrue(add_resp['vbucket_uuid'] > 0,
msg='Add request vbucket uuid is zero')
self.log.info('\n\nComplete test_new_response_fields\n\n')
def test_failover(self):
self.log.info('\n\nStarting test_failover')
client = VBucketAwareMemcached(RestConnection(self.master), 'default')
h = client.sendHellos(
memcacheConstants.PROTOCOL_BINARY_FEATURE_MUTATION_SEQNO)
self.log.info(
'\n\nVerify responses are correct after graceful failover')
op_data = self.extract_vbucket_uuid_and_seqno(
client.set('failoverkey', 0, 0, 'failovervalue'))
op_data['format_type'] = 'no_failover'
# don't really need to do this so it is commented
#pre_failover_results = self.observe_seqno_response_to_dict( client.observe_seqno('failoverkey', vbucket_uuid) )
# which server did the key go to and gracefully fail that server
self.log.info('\n\nstarting graceful failover scenario')
server_with_key = client.memcached('failoverkey').host
self.log.info(
'\n\nserver {0} has the key and it will be failed over'.format(
server_with_key))
RebalanceHelper.wait_for_persistence(self.master,
self.default_bucket_name)
# now failover
RestConnection(self.master).fail_over(otpNode='ns_1@' +
server_with_key,
graceful=True)
if server_with_key in self.servers:
self.servers.remove(server_with_key)
self.log.info('server should be failed over now')
time.sleep(5)
# reinstantiate the client so we get the new view of the world
client = VBucketAwareMemcached(RestConnection(self.master), 'default')
server_with_key = client.memcached('failoverkey').host
self.log.info('\n\nkey is now on server {0}'.format(server_with_key))
after_failover_results = self.observe_seqno_response_to_dict(
client.observe_seqno('failoverkey', op_data['vbucket_uuid']))
# verify: no (hard) failover, everything else as before
self.check_results(op_data, after_failover_results)
self.log.info('Test complete')
# now do a hard failover
# which server did the key go to and gracefully fail that server
time.sleep(30)
self.log.info('\n\nstarting hard failover scenario')
client.sendHellos(
memcacheConstants.PROTOCOL_BINARY_FEATURE_MUTATION_SEQNO)
op_data = self.extract_vbucket_uuid_and_seqno(
client.set('hardfailoverkey', 0, 0, 'failovervalue'))
op_data['format_type'] = 'hard_failover'
server_with_key = client.memcached('hardfailoverkey').host
self.log.info(
'\n\nserver {0} has the key and it will be hard failed over'.
format(server_with_key))
# now failover
RestConnection(self.master).fail_over(otpNode='ns_1@' +
server_with_key,
graceful=False)
if server_with_key in self.servers:
self.servers.remove(server_with_key)
self.log.info('\n\nserver should be failed over now')
time.sleep(10)
# reinstantiate the client so we get the new view of the world
client = VBucketAwareMemcached(RestConnection(self.master), 'default')
server_with_key = client.memcached('hardfailoverkey').host
self.log.info('\n\nkey is now on server {0}'.format(server_with_key))
time.sleep(10)
after_failover_results = self.observe_seqno_response_to_dict(
client.observe_seqno('hardfailoverkey', op_data['vbucket_uuid']))
self.check_results(op_data, after_failover_results)
self.log.info('Test complete')
def test_basic_operations(self):
self.log.info('\n\nStarting test_basic_operations')
client = VBucketAwareMemcached(RestConnection(self.master), 'default')
h = client.sendHellos(
memcacheConstants.PROTOCOL_BINARY_FEATURE_MUTATION_SEQNO)
all_clients = []
for s in self.servers:
all_clients.append(
MemcachedClientHelper.direct_client(s,
self.default_bucket_name))
# basic case
op_data = self.extract_vbucket_uuid_and_seqno(
client.set('test1key', 0, 0, 'test1value'))
op_data['format_type'] = 'no_failover'
for s in self.servers:
RebalanceHelper.wait_for_persistence(s, self.default_bucket_name)
o = client.observe_seqno('test1key', op_data['vbucket_uuid'])
results = self.observe_seqno_response_to_dict(o)
self.check_results(op_data, results)
# 2. Disable persistence, Set a key, observe seqno, should not be persisted,
# enable and wait for persistence, observe seqno and check everything
self.log.info(
'\n\nVerify responses are correct when keys are not persisted')
for i in all_clients:
i.stop_persistence()
mc = MemcachedClientHelper.direct_client(self.master, "default")
self.log.info('setting the kv')
op_data = self.extract_vbucket_uuid_and_seqno(
client.set('test2key', 0, 0, 'test2value'))
op_data['format_type'] = 'no_failover'
self.log.info('calling observe seq no')
o = client.observe_seqno('test2key', op_data['vbucket_uuid'])
results = self.observe_seqno_response_to_dict(o)
# can't use check results because persisted is
self.assertTrue(
op_data['vbucket_uuid'] == results['new_vbucket_uuid'],
msg='Observe Vbucket uuid does not match. Expected: {0}. Actual {1}'
.format(hex(op_data['vbucket_uuid']),
hex(results['new_vbucket_uuid'])))
self.assertTrue(
op_data['seqno'] == results['current_seqno'],
msg='Observe seqno does not match. Expected: {0}. Actual {1}'.
format(op_data['seqno'], results['current_seqno']))
self.assertTrue(
op_data['seqno'] > results['last_persisted_seqno'],
msg='Persisted seqno is too big. Expected: {0}. Actual {1}'.format(
op_data['seqno'], results['last_persisted_seqno']))
self.log.info('starting persistence')
for s in all_clients:
s.start_persistence()
for s in self.servers:
RebalanceHelper.wait_for_persistence(s, self.default_bucket_name)
results = self.observe_seqno_response_to_dict(
client.observe_seqno('test2key', op_data['vbucket_uuid']))
self.check_results(op_data, results)
# error case - broken
"""
mc.set('badbuckettestkey', 0, 0, 'testvalue',1)
try:
o = client.observe_seqno('badbuckettestkey', 2)
self.fail('bucket is incorrect, should have returned an error')
except AssertionError, ex: # this is to catch the above fail, should it ever happen
raise
except Exception, ex:
traceback.print_exc()
if ex.status != memcacheConstants.ERR_NOT_FOUND:
self.log.info('Observe seqno incorrect error code for invalid bucket. Expected: {0}. Actual {1}'.format(
memcacheConstants.ERR_NOT_FOUND, ex.status))
raise Exception(ex)
"""
self.log.info('\n\nComplete test_basic_operations')
def test_new_response_fields(self):
self.log.info('\n\nStarting test_new_response_fields')
client = VBucketAwareMemcached(RestConnection(self.master), 'default')
h = client.sendHellos( memcacheConstants.PROTOCOL_BINARY_FEATURE_MUTATION_SEQNO );
set_resp = self.extract_vbucket_uuid_and_seqno( client.set('test1key', 0, 0, '123456789') )
# test the inplace operations
test = client.generic_request(client.memcached('test1key').set, 'test1key', 0, 0,'totally new value')
replace_resp = self.extract_vbucket_uuid_and_seqno(
client.generic_request( client.memcached('test1key').replace, 'test1key', 0, 0,'totally new value') )
self.verify_vbucket_and_seqno( set_resp, replace_resp, 'replace')
append_resp = self.extract_vbucket_uuid_and_seqno(
client.generic_request( client.memcached('test1key').append, 'test1key', 'appended data') )
self.verify_vbucket_and_seqno(replace_resp, append_resp, 'append')
prepend_resp = self.extract_vbucket_uuid_and_seqno(
client.generic_request( client.memcached('test1key').prepend, 'test1key', 'prepended data') )
self.verify_vbucket_and_seqno(append_resp, prepend_resp, 'prepend')
# and finally do the delete
delete_resp = self.extract_vbucket_uuid_and_seqno(
client.generic_request( client.memcached('test1key').delete,'test1key') )
self.verify_vbucket_and_seqno( set_resp, delete_resp, 'delete')
#meta commands under construction
# test the 'meta' commands
TEST_SEQNO = 123
TEST_CAS = 456
set_with_meta_resp = client.generic_request(
client.memcached('test1keyformeta').set_with_meta, 'test1keyformeta', 0, 0, TEST_SEQNO, TEST_CAS, '123456789')
set_meta_vbucket_uuid, set_meta_seqno = struct.unpack('>QQ', set_with_meta_resp[2])
set_with_meta_dict = {'vbucket_uuid':set_meta_vbucket_uuid, 'seqno': set_meta_seqno}
get_meta_resp = client.generic_request(client.memcached( 'test1keyformeta').getMeta, 'test1keyformeta')
self.assertTrue(TEST_SEQNO == get_meta_resp[3], \
msg='get meta seqno does not match as set. Expected {0}, actual {1}'.format(TEST_SEQNO,get_meta_resp[3]) )
self.assertTrue(TEST_CAS == get_meta_resp[4], \
msg='get meta cas does not match as set. Expected {0}, actual {1}'.format(TEST_CAS,get_meta_resp[4]) )
# def del_with_meta(self, key, exp, flags, seqno, old_cas, new_cas, vbucket= -1):
del_with_meta_resp = client.generic_request(
client.memcached('test1keyformeta').del_with_meta,'test1keyformeta', 0, 0, TEST_SEQNO, TEST_CAS, TEST_CAS+1)
vbucket_uuid, seqno = struct.unpack('>QQ', del_with_meta_resp[2])
del_with_meta_dict = {'vbucket_uuid':vbucket_uuid, 'seqno': seqno}
self.verify_vbucket_and_seqno( set_with_meta_dict, del_with_meta_dict, 'set/del with meta')
# do some integer operations
set_resp = self.extract_vbucket_uuid_and_seqno( client.set('key-for-integer-value', 0, 0, '123') )
incr_resp = client.generic_request(client.memcached('key-for-integer-value').incr, 'key-for-integer-value')
incr_resp_dict = {'vbucket_uuid':incr_resp[2], 'seqno':incr_resp[3]}
self.verify_vbucket_and_seqno(set_resp, incr_resp_dict, 'incr')
decr_resp = client.generic_request(client.memcached('key-for-integer-value').decr,'key-for-integer-value')
decr_resp_dict = {'vbucket_uuid':decr_resp[2], 'seqno':decr_resp[3]}
self.verify_vbucket_and_seqno(incr_resp_dict, decr_resp_dict, 'decr')
add_resp = self.extract_vbucket_uuid_and_seqno(
client.generic_request( client.memcached('totally new key').add, 'totally new key', 0, 0,'totally new value') )
self.assertTrue( add_resp['vbucket_uuid'] > 0, msg='Add request vbucket uuid is zero')
self.log.info('\n\nComplete test_new_response_fields\n\n')
def test_failover(self):
self.log.info('\n\nStarting test_failover')
client = VBucketAwareMemcached(RestConnection(self.master), 'default')
h = client.sendHellos( memcacheConstants.PROTOCOL_BINARY_FEATURE_MUTATION_SEQNO );
self.log.info('\n\nVerify responses are correct after graceful failover')
op_data = self.extract_vbucket_uuid_and_seqno( client.set('failoverkey', 0, 0, 'failovervalue') )
op_data['format_type'] = 'no_failover'
# don't really need to do this so it is commented
#pre_failover_results = self.observe_seqno_response_to_dict( client.observe_seqno('failoverkey', vbucket_uuid) )
# which server did the key go to and gracefully fail that server
self.log.info('\n\nstarting graceful failover scenario')
server_with_key = client.memcached( 'failoverkey').host
self.log.info('\n\nserver {0} has the key and it will be failed over'.format(server_with_key))
RebalanceHelper.wait_for_persistence(self.master, self.default_bucket_name)
# now failover
RestConnection(self.master).fail_over(otpNode = 'ns_1@' + server_with_key, graceful=True)
if server_with_key in self.servers:
self.servers.remove(server_with_key)
self.log.info('server should be failed over now')
time.sleep(5)
# reinstantiate the client so we get the new view of the world
client = VBucketAwareMemcached(RestConnection(self.master), 'default')
server_with_key = client.memcached( 'failoverkey').host
self.log.info('\n\nkey is now on server {0}'.format(server_with_key))
after_failover_results = self.observe_seqno_response_to_dict(
client.observe_seqno('failoverkey', op_data['vbucket_uuid']) )
# verify: no (hard) failover, everything else as before
self.check_results( op_data, after_failover_results)
self.log.info('Test complete')
# now do a hard failover
# which server did the key go to and gracefully fail that server
self.log.info('\n\nstarting hard failover scenario')
client.sendHellos( memcacheConstants.PROTOCOL_BINARY_FEATURE_MUTATION_SEQNO );
op_data = self.extract_vbucket_uuid_and_seqno( client.set('hardfailoverkey', 0, 0, 'failovervalue') )
op_data['format_type'] = 'hard_failover'
server_with_key = client.memcached( 'hardfailoverkey').host
self.log.info('\n\nserver {0} has the key and it will be hard failed over'.format(server_with_key))
# now failover
RestConnection(self.master).fail_over(otpNode = 'ns_1@' + server_with_key, graceful=False)
if server_with_key in self.servers:
self.servers.remove(server_with_key)
self.log.info('\n\nserver should be failed over now')
time.sleep(5)
# reinstantiate the client so we get the new view of the world
client = VBucketAwareMemcached(RestConnection(self.master), 'default')
server_with_key = client.memcached( 'hardfailoverkey').host
self.log.info('\n\nkey is now on server {0}'.format(server_with_key))
after_failover_results = self.observe_seqno_response_to_dict(
client.observe_seqno('hardfailoverkey',op_data['vbucket_uuid']) )
self.check_results( op_data, after_failover_results)
self.log.info('Test complete')
def test_basic_operations(self):
self.log.info('\n\nStarting test_basic_operations')
client = VBucketAwareMemcached(RestConnection(self.master), 'default')
h = client.sendHellos( memcacheConstants.PROTOCOL_BINARY_FEATURE_MUTATION_SEQNO );
all_clients = []
for s in self.servers:
all_clients.append( MemcachedClientHelper.direct_client(s, self.default_bucket_name))
# basic case
op_data = self.extract_vbucket_uuid_and_seqno( client.set('test1key', 0, 0, 'test1value') )
op_data['format_type'] = 'no_failover'
for s in self.servers:
RebalanceHelper.wait_for_persistence(s, self.default_bucket_name)
o = client.observe_seqno('test1key', op_data['vbucket_uuid'])
results = self.observe_seqno_response_to_dict( o )
self.check_results( op_data, results)
# 2. Disable persistence, Set a key, observe seqno, should not be persisted,
# enable and wait for persistence, observe seqno and check everything
self.log.info('\n\nVerify responses are correct when keys are not persisted')
for i in all_clients:
i.stop_persistence()
mc = MemcachedClientHelper.direct_client(self.master, "default")
self.log.info('setting the kv')
op_data = self.extract_vbucket_uuid_and_seqno( client.set('test2key', 0, 0, 'test2value') )
op_data['format_type'] = 'no_failover'
self.log.info('calling observe seq no')
o = client.observe_seqno('test2key', op_data['vbucket_uuid'])
results = self.observe_seqno_response_to_dict( o )
# can't use check results because persisted is
self.assertTrue(op_data['vbucket_uuid'] == results['new_vbucket_uuid'],
msg='Observe Vbucket uuid does not match. Expected: {0}. Actual {1}'.format(
hex(op_data['vbucket_uuid']), hex(results['new_vbucket_uuid'])) )
self.assertTrue(op_data['seqno'] == results['current_seqno'],
msg='Observe seqno does not match. Expected: {0}. Actual {1}'.format(
op_data['seqno'], results['current_seqno']) )
self.assertTrue(op_data['seqno'] > results['last_persisted_seqno'],
msg='Persisted seqno is too big. Expected: {0}. Actual {1}'.format(
op_data['seqno'], results['last_persisted_seqno']) )
self.log.info('starting persistence')
for s in all_clients:
s.start_persistence()
for s in self.servers:
RebalanceHelper.wait_for_persistence(s, self.default_bucket_name)
results = self.observe_seqno_response_to_dict( client.observe_seqno('test2key', op_data['vbucket_uuid']) )
self.check_results( op_data, results)
# error case
mc.set('badbuckettestkey', 0, 0, 'testvalue',1)
try:
o = client.observe_seqno('badbuckettestkey', 2)
self.fail('bucket is incorrect, should have returned an error')
except AssertionError, ex: # this is to catch the above fail, should it ever happen
raise