本文整理汇总了Python中pycassa.system_manager.SystemManager.create_column_family方法的典型用法代码示例。如果您正苦于以下问题:Python SystemManager.create_column_family方法的具体用法?Python SystemManager.create_column_family怎么用?Python SystemManager.create_column_family使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pycassa.system_manager.SystemManager
的用法示例。
在下文中一共展示了SystemManager.create_column_family方法的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: CreateCF
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def CreateCF(connStr, keySpace, cfs, columesTypeList = None):
sysmgt = SystemManager(connStr)
list = sysmgt.list_keyspaces()
if keySpace in list:
#print('pyagent is existed')
pass
else:
sysmgt.create_keyspace(keySpace, SIMPLE_STRATEGY, {'replication_factor': '3'})
cfDict = sysmgt.get_keyspace_column_families(keySpace)
allCF = cfDict.keys()
for i in range(len(cfs)):
columnFamily = cfs[i]
#print(columnFamily)
if columesTypeList != None:
columes = columesTypeList[i]
else:
columes = None
if columnFamily in allCF:
#print(columnFamily + ' is existed')
pass
else:
#print(columnFamily + ' is creating')
sysmgt.create_column_family(keySpace, columnFamily, super=False,
comparator_type=UTF8_TYPE,
key_validation_class=ASCII_TYPE,
default_validation_class=UTF8_TYPE,
column_validation_classes=columes,
gc_grace_seconds=1000)
sysmgt.close()
示例2: get_connection
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def get_connection():
"""
Creates a connection to Cassandra.
Returs:
pool
"""
cassandra_host = os.environ.get('CASSANDRA_HOST', 'localhost')
sys_mgr = SystemManager()
try:
sys_mgr.describe_ring(KEYSPACE)
except:
sys_mgr.create_keyspace(KEYSPACE, SIMPLE_STRATEGY, {'replication_factor': '1'})
pool = ConnectionPool(KEYSPACE, server_list=[cassandra_host])
for cf_name in [CF_LOGS, CF_LOGS_BY_APP, CF_LOGS_BY_HOST, CF_LOGS_BY_SEVERITY]:
try:
cf = ColumnFamily(pool, cf_name)
except:
sys_mgr.create_column_family(KEYSPACE, cf_name, comparator_type=TimeUUIDType())
cf = ColumnFamily(pool, cf_name)
cf.get_count(str(uuid.uuid4()))
sys_mgr.close()
return pool
示例3: initializeTableLayout
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def initializeTableLayout(keyspace, server_list, replicationStrategy,
strategyOptions, localDCName, credentials):
sys_manager = SystemManager(server_list[0], credentials=credentials)
# Make sure the the keyspace exists
if keyspace not in sys_manager.list_keyspaces():
sys_manager.create_keyspace(keyspace, replicationStrategy,
strategyOptions)
cf_defs = sys_manager.get_keyspace_column_families(keyspace)
# Create UTF8 CF's
for tablename in ["global_nodes", "metadata"]:
if tablename not in cf_defs.keys():
createUTF8ColumnFamily(sys_manager, keyspace, tablename)
if localDCName:
dcNodes = "dc_%s_nodes" % (localDCName,)
if dcNodes not in cf_defs.keys():
createUTF8ColumnFamily(sys_manager, keyspace, dcNodes)
else:
# TODO Log we do not have the DC name
pass
if "node_slices" not in cf_defs.keys():
sys_manager.create_column_family(
keyspace,
"node_slices",
super=False,
comparator_type=pycassa_types.LongType(),
key_validation_class=pycassa_types.UTF8Type(),
default_validation_class=pycassa_types.LongType()
)
示例4: __init__
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def __init__(self, engine, **kw):
super(CassandraStore, self).__init__(engine, **kw)
spliturl = urlsplit(engine)
_, keyspace, column_family = spliturl.path.split('/')
try:
self._store = pycassa.ColumnFamily(
pycassa.ConnectionPool(keyspace, [spliturl.hostname]),
column_family,
)
except pycassa.InvalidRequestException:
from pycassa.system_manager import SystemManager # @UnresolvedImport @IgnorePep8
system_manager = SystemManager(spliturl[1])
system_manager.create_keyspace(
keyspace,
pycassa.system_manager.SIMPLE_STRATEGY,
dict(replication_factor=native(kw.get('replication', 1))),
)
system_manager.create_column_family(keyspace, column_family)
self._store = pycassa.ColumnFamily(
pycassa.ConnectionPool(keyspace, [spliturl.netloc]),
column_family,
)
except pycassa.NotFoundException:
from pycassa.system_manager import SystemManager # @UnresolvedImport @IgnorePep8
system_manager = SystemManager(spliturl[1])
system_manager.create_column_family(keyspace, column_family)
self._store = pycassa.ColumnFamily(
pycassa.ConnectionPool(keyspace, [spliturl.netloc]),
column_family,
)
示例5: ensure_cassandra_cf
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def ensure_cassandra_cf(self):
s = SystemManager()
if self.keyspace not in s.list_keyspaces():
s.create_keyspace(self.keyspace, SIMPLE_STRATEGY, {'replication_factor': '1'})
if self.cassandra_columns_family not in s.get_keyspace_column_families(self.keyspace):
s.create_column_family(self.keyspace, self.cassandra_columns_family)
self.columnfamily = ColumnFamily(self.cassandra_session, self.cassandra_columns_family)
示例6: test_single_component_composite
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def test_single_component_composite(self):
sys = SystemManager()
sys.create_column_family(TEST_KS, 'SingleComposite',
comparator_type=CompositeType(IntegerType()))
cf = ColumnFamily(pool, 'SingleComposite')
cf.insert('key', {(123456,): 'val'})
assert_equal(cf.get('key'), {(123456,): 'val'})
示例7: setup_class
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def setup_class(cls):
sys = SystemManager()
sys.create_column_family(
TEST_KS,
'CustomComposite1',
comparator_type=CompositeType(
IntegerType(),
UTF8Type()))
示例8: setUp
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def setUp(self):
from shove import Shove
from pycassa.system_manager import SystemManager
system_manager = SystemManager('localhost:9160')
try:
system_manager.create_column_family('Foo', 'shove')
except:
pass
self.store = Shove('cassandra://localhost:9160/Foo/shove')
示例9: setUp
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def setUp(self):
from shove import Shove
from pycassa.system_manager import SystemManager # @UnresolvedImport @IgnorePep8
system_manager = SystemManager('localhost:9160')
try:
system_manager.create_column_family('Murk', 'shove')
except:
pass
self.store = Shove('cassandra://localhost:9160/Murk/shove')
示例10: _cassandra_ensure_keyspace
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def _cassandra_ensure_keyspace(self, server_list,
keyspace_name, cf_info_list):
# Retry till cassandra is up
server_idx = 0
num_dbnodes = len(self._server_list)
connected = False
while not connected:
try:
cass_server = self._server_list[server_idx]
sys_mgr = SystemManager(cass_server)
connected = True
except Exception as e:
# TODO do only for
# thrift.transport.TTransport.TTransportException
server_idx = (server_idx + 1) % num_dbnodes
time.sleep(3)
if self._reset_config:
try:
sys_mgr.drop_keyspace(keyspace_name)
except pycassa.cassandra.ttypes.InvalidRequestException as e:
# TODO verify only EEXISTS
self._logger("Warning! " + str(e), level=SandeshLevel.SYS_WARN)
try:
sys_mgr.create_keyspace(keyspace_name, SIMPLE_STRATEGY,
{'replication_factor': str(num_dbnodes)})
except pycassa.cassandra.ttypes.InvalidRequestException as e:
# TODO verify only EEXISTS
self._logger("Warning! " + str(e), level=SandeshLevel.SYS_WARN)
gc_grace_sec = 0
if num_dbnodes > 1:
gc_grace_sec = 60
for cf_info in cf_info_list:
try:
(cf_name, comparator_type) = cf_info
if comparator_type:
sys_mgr.create_column_family(
keyspace_name, cf_name,
comparator_type=comparator_type,
gc_grace_seconds=gc_grace_sec,
default_validation_class='UTF8Type')
else:
sys_mgr.create_column_family(keyspace_name, cf_name,
gc_grace_seconds=gc_grace_sec,
default_validation_class='UTF8Type')
except pycassa.cassandra.ttypes.InvalidRequestException as e:
# TODO verify only EEXISTS
self._logger("Warning! " + str(e), level=SandeshLevel.SYS_WARN)
sys_mgr.alter_column_family(keyspace_name, cf_name,
gc_grace_seconds=gc_grace_sec,
default_validation_class='UTF8Type')
示例11: test_uuid_composites
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def test_uuid_composites(self):
sys = SystemManager()
sys.create_column_family(TEST_KS, 'UUIDComposite',
comparator_type=CompositeType(IntegerType(reversed=True), TimeUUIDType()),
key_validation_class=TimeUUIDType(),
default_validation_class=UTF8Type())
key, u1, u2 = uuid.uuid1(), uuid.uuid1(), uuid.uuid1()
cf = ColumnFamily(pool, 'UUIDComposite')
cf.insert(key, {(123123, u1): 'foo'})
cf.insert(key, {(123123, u1): 'foo', (-1, u2): 'bar', (-123123123, u1): 'baz'})
assert_equal(cf.get(key), {(123123, u1): 'foo', (-1, u2): 'bar', (-123123123, u1): 'baz'})
示例12: handle
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def handle(self, **options):
"""
:param options:
"""
sys = SystemManager(server=CASSANDRA_HOSTS[0])
sys.create_column_family(CASSANDRA_SESSIONS_KEYSPACE, CASSANDRA_SESSIONS_COLUMN_FAMILY,
key_validation_class=types.UTF8Type(),
column_validation_classes={
'session_data': types.UTF8Type()
})
sys.close()
示例13: test_big_batched_writes
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def test_big_batched_writes():
## this is an m1.xlarge doing nothing but supporting this test
server = 'localhost:9160'
keyspace = 'testkeyspace_' + getpass.getuser().replace('-', '_')
family = 'testcf'
sm = SystemManager(server)
try:
sm.drop_keyspace(keyspace)
except pycassa.InvalidRequestException:
pass
sm.create_keyspace(keyspace, SIMPLE_STRATEGY, {'replication_factor': '1'})
sm.create_column_family(keyspace, family, super=False,
key_validation_class = LEXICAL_UUID_TYPE,
default_validation_class = LEXICAL_UUID_TYPE,
column_name_class = ASCII_TYPE)
sm.alter_column(keyspace, family, 'test', ASCII_TYPE)
sm.close()
pool = ConnectionPool(keyspace, [server], max_retries=10, pool_timeout=0, pool_size=10, timeout=120)
pool.fill()
pool.add_listener( Listener() )
## assert that we are using framed transport
conn = pool._q.get()
assert isinstance(conn.transport, thrift.transport.TTransport.TFramedTransport)
pool._q.put(conn)
try:
for num_rows in range(14, 20):
## write some data to cassandra using increasing data sizes
one_mb = ' ' * 2**20
rows = []
for i in xrange(num_rows):
key = uuid.uuid4()
rows.append((key, dict(test=one_mb)))
testcf = pycassa.ColumnFamily(pool, family)
with testcf.batch() as batch:
for (key, data_dict) in rows:
data_size = len(data_dict.values()[0])
logger.critical('adding %r with %.6f MB' % (key, float(data_size)/2**20))
batch.insert(key, data_dict)
logger.critical('%d rows written' % num_rows)
finally:
sm = SystemManager(server)
try:
sm.drop_keyspace(keyspace)
except pycassa.InvalidRequestException:
pass
sm.close()
logger.critical('clearing test keyspace: %r' % keyspace)
示例14: _create_cf
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def _create_cf(self, cf_name):
sys_mng = SystemManager('localhost:9160')
validators = {'name': UTF8_TYPE, 'content': UTF8_TYPE, 'post_time': UTF8_TYPE}
sys_mng.create_column_family(
'bbs',
cf_name,
super=False,
comparator_type=UTF8_TYPE,
key_validation_class=UTF8_TYPE,
column_validation_classes=validators
)
sys_mng.close()
示例15: test_add_remove_counter
# 需要导入模块: from pycassa.system_manager import SystemManager [as 别名]
# 或者: from pycassa.system_manager.SystemManager import create_column_family [as 别名]
def test_add_remove_counter(self):
sys = SystemManager()
sys.create_column_family(TEST_KS, 'KeyLongCounter', key_validation_class=LongType(),
default_validation_class='CounterColumnType')
sys.close()
cf_long = ColumnFamily(pool, 'KeyLongCounter')
key = 1111111111111111L
cf_long.add(key, 'col')
assert_equal(cf_long.get(key), {'col': 1})
cf_long.remove_counter(key, 'col')
time.sleep(0.1)
assert_raises(NotFoundException, cf_long.get, key)