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設置密鑰空間時，我在使用datastax的Cassandra的python驅動程序時出現錯誤。這裏是我的代碼到錯誤：python cassandra驅動程序設置密鑰空間錯誤
from cassandra.cluster import Cluster
from cassandra.query import SimpleStatement
cluster = Cluster(['some.IP.addr'])
session = cluster.connect()
session.set_keyspace('demodb')
這裏是我的錯誤：
Traceback (most recent call last):
File "./forecasts.py", line 115, in <module>
main()
File "./forecasts.py", line 51, in main
session.set_keyspace(KEYSPACE)
File "build/bdist.linux-x86_64/egg/cassandra/cluster.py", line 1255, in set_keyspace
File "build/bdist.linux-x86_64/egg/cassandra/cluster.py", line 995, in execute
File "build/bdist.linux-x86_64/egg/cassandra/cluster.py", line 2195, in result
cassandra.connection.ConnectionException: Failed to set keyspace on all hosts:
[InvalidRequest(u'code=2200 [Invalid query] message="Keyspace \'weathertest\' does not exist"',), InvalidRequest(u'code=2200 [Invalid query] message="Keyspace \'weathertest\' doe
s not exist"',)]
，這是日誌調試級別爲：
DEBUG:root:
debugging is turned on
INFO:root:info is turned on
DEBUG:cassandra.pool:Host 10.10.0.51 is now marked up
DEBUG:cassandra.cluster:[control connection] Opening new connection to 10.10.0.51
DEBUG:cassandra.connection:Not sending options message for new connection(29704848) to 10.10.0.51 because compression is disabled and a cql version was not specified
DEBUG:cassandra.io.libevreactor:Starting libev event loop
DEBUG:cassandra.connection:Got ReadyMessage on new connection (29704848) from 10.10.0.51
DEBUG:cassandra.cluster:[control connection] Established new connection <LibevConnection(29704848) 10.10.0.51:9042>, registering watchers and refreshing schema and topology
DEBUG:cassandra.cluster:[control connection] Refreshing node list and token map
DEBUG:cassandra.cluster:[control connection] Found new host to connect to: 10.10.0.50
INFO:cassandra.cluster:New Cassandra host 10.10.0.50 added
DEBUG:cassandra.cluster:Adding or renewing pools for new host 10.10.0.50 and notifying listeners
DEBUG:cassandra.cluster:Done preparing queries for new host 10.10.0.50
DEBUG:cassandra.pool:Host 10.10.0.50 is now marked up
DEBUG:cassandra.cluster:[control connection] Fetched ring info, rebuilding metadata
DEBUG:cassandra.cluster:[control connection] Waiting for schema agreement
DEBUG:cassandra.cluster:[control connection] Schemas match
DEBUG:cassandra.cluster:[control connection] Fetched schema, rebuilding metadata
DEBUG:cassandra.cluster:Control connection created
DEBUG:cassandra.pool:Initializing new connection pool for host 10.10.0.51
DEBUG:cassandra.pool:Initializing new connection pool for host 10.10.0.50
DEBUG:cassandra.connection:Not sending options message for new connection(139755014785552) to 10.10.0.51 because compression is disabled and a cql version was not specified
DEBUG:cassandra.connection:Not sending options message for new connection(29756880) to 10.10.0.50 because compression is disabled and a cql version was not specified
DEBUG:cassandra.connection:Got ReadyMessage on new connection (139755014785552) from 10.10.0.51
DEBUG:cassandra.connection:Got ReadyMessage on new connection (29756880) from 10.10.0.50
DEBUG:cassandra.connection:Not sending options message for new connection(29754064) to 10.10.0.51 because compression is disabled and a cql version was not specified
DEBUG:cassandra.connection:Got ReadyMessage on new connection (29754064) from 10.10.0.51
DEBUG:cassandra.connection:Not sending options message for new connection(29754640) to 10.10.0.50 because compression is disabled and a cql version was not specified
DEBUG:cassandra.pool:Finished initializing new connection pool for host 10.10.0.51
DEBUG:cassandra.cluster:Added pool for host 10.10.0.51 to session
DEBUG:cassandra.connection:Got ReadyMessage on new connection (29754640) from 10.10.0.50
DEBUG:cassandra.pool:Finished initializing new connection pool for host 10.10.0.50
DEBUG:cassandra.cluster:Added pool for host 10.10.0.50 to session
INFO:root:setting keyspace...
DEBUG:cassandra.io.libevreactor:Closing connection (139755014785552) to 10.10.0.51
DEBUG:cassandra.io.libevreactor:Closing connection (29754064) to 10.10.0.51
DEBUG:cassandra.io.libevreactor:Closing connection (29756880) to 10.10.0.50
DEBUG:cassandra.io.libevreactor:Closing connection (29754640) to 10.10.0.50
DEBUG:cassandra.cluster:Shutting down Cluster Scheduler
DEBUG:cassandra.io.libevreactor:Closing connection (29704848) to 10.10.0.51
DEBUG:cassandra.cluster:Not executing scheduled task due to Scheduler shutdown
任何見解將不勝感激:)
你真的有兩個節點的那'''weathertest'''？ –
我也會確保你在密鑰空間名稱上匹配任何大小寫。 –