本文整理汇总了Python中connection.Connection.system_add_keyspace方法的典型用法代码示例。如果您正苦于以下问题：Python Connection.system_add_keyspace方法的具体用法？Python Connection.system_add_keyspace怎么用？Python Connection.system_add_keyspace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connection.Connection的用法示例。
在下文中一共展示了Connection.system_add_keyspace方法的2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: SystemManager
# 需要导入模块: from connection import Connection [as 别名]
# 或者: from connection.Connection import system_add_keyspace [as 别名]
#.........这里部分代码省略.........
'strategy_options': ks_def.strategy_options}
def list_keyspaces(self):
""" Returns a list of all keyspace names. """
return [ks.name for ks in self._conn.describe_keyspaces()]
def describe_ring(self, keyspace):
""" Describes the Cassandra cluster """
return self._conn.describe_ring(keyspace)
def describe_cluster_name(self):
""" Gives the cluster name """
return self._conn.describe_cluster_name()
def describe_version(self):
""" Gives the server's API version """
return self._conn.describe_version()
def describe_schema_versions(self):
""" Lists what schema version each node has """
return self._conn.describe_schema_versions()
def describe_partitioner(self):
""" Gives the partitioner that the cluster is using """
part = self._conn.describe_partitioner()
return part[part.rfind('.') + 1: ]
def describe_snitch(self):
""" Gives the snitch that the cluster is using """
snitch = self._conn.describe_snitch()
return snitch[snitch.rfind('.') + 1: ]
def _system_add_keyspace(self, ksdef):
schema_version = self._conn.system_add_keyspace(ksdef)
self._wait_for_agreement()
return schema_version
def _system_update_keyspace(self, ksdef):
schema_version = self._conn.system_update_keyspace(ksdef)
self._wait_for_agreement()
return schema_version
def create_keyspace(self, name, replication_factor,
replication_strategy=SIMPLE_STRATEGY,
strategy_options=None):
"""
Creates a new keyspace. Column families may be added to this keyspace
after it is created using :meth:`create_column_family()`.
`replication_strategy` determines how replicas are chosen for this keyspace.
The strategies that Cassandra provides by default
are available as :const:`SIMPLE_STRATEGY`, :const:`NETWORK_TOPOLOGY_STRATEGY`,
and :const:`OLD_NETWORK_TOPOLOGY_STRATEGY`. `NETWORK_TOPOLOGY_STRATEGY` requires
`strategy_options` to be present.
`strategy_options` is an optional dictionary of strategy options. By default, these
are only used by NetworkTopologyStrategy; in this case, the dictionary should
look like: ``{'Datacenter1': '2', 'Datacenter2': '1'}``. This maps each
datacenter (as defined in a Cassandra property file) to a replica count.
Example Usage:
.. code-block:: python
示例2: SystemManager
# 需要导入模块: from connection import Connection [as 别名]
# 或者: from connection.Connection import system_add_keyspace [as 别名]
#.........这里部分代码省略.........
print
if cfdef.column_metadata:
print "Column Metadata"
for coldef in cfdef.column_metadata:
spaces = " " * (35 - len(' - Name:'))
print " - Name:", spaces, coldef.name
spaces = " " * (35 - len(' Value Type:'))
s = coldef.validation_class
print " Value Type:", spaces, s[s.rfind('.') + 1: ]
if coldef.index_type is not None:
spaces = " " * (35 - len(' Index Type:'))
s = IndexType._VALUES_TO_NAMES[coldef.index_type]
print " Index Type:", spaces, s[s.rfind('.') + 1: ]
spaces = " " * (35 - len(' Index Name:'))
print " Index Name:", spaces, coldef.index_name
print
def describe_ring(self, keyspace):
""" Describes the Cassandra cluster """
return self._conn.describe_ring(keyspace)
def describe_cluster_name(self):
""" Gives the cluster name """
return self._conn.describe_cluster_name()
def describe_version(self):
""" Gives the server's API version """
return self._conn.describe_version()
def _system_add_keyspace(self, ksdef):
schema_version = self._conn.system_add_keyspace(ksdef)
self._wait_for_agreement()
return schema_version
def _system_update_keyspace(self, ksdef):
schema_version = self._conn.system_update_keyspace(ksdef)
self._wait_for_agreement()
return schema_version
def create_keyspace(self, name, replication_factor,
replication_strategy=SIMPLE_STRATEGY,
strategy_options=None):
"""
Creates a new keyspace. Column families may be added to this keyspace
after it is created using :meth:`create_column_family()`.
`replication_strategy` determines how replicas are chosen for this keyspace.
The strategies that Cassandra provides by default
are available as :const:`SIMPLE_STRATEGY`, :const:`NETWORK_TOPOLOGY_STRATEGY`,
and :const:`OLD_NETWORK_TOPOLOGY_STRATEGY`. `NETWORK_TOPOLOGY_STRATEGY` requires
`strategy_options` to be present.
`strategy_options` is an optional dictionary of strategy options. By default, these
are only used by NetworkTopologyStrategy; in this case, the dictionary should
look like: ``{'Datacenter1': '2', 'Datacenter2': '1'}``. This maps each
datacenter (as defined in a Cassandra property file) to a replica count.
Example Usage:
.. code-block:: python