当我遇到以下问题时,我试图为 cassandra 设置用户身份验证。
首先,我更新了cassandra.yaml
:
authenticator: PasswordAuthenticator
然后创建了具有 3 复制因子的 system_auth 键空间:
CREATE KEYSPACE system_auth WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : 3};
然后使用以下命令重新运行 cassandra:
bin/cassandra
然后,我继续并确保修复我的节点(尽管我不确定我是否理解为什么这很重要/必要):
nodetool repair
即使在完成所有这些步骤之后,cassandra/java 也会对我大喊:
Traceback (most recent call last):
File "/home/tscobb/Documents/BM/apache-cassandra-2.0.5/bin/cqlsh", line 2044, in <module>
main(*read_options(sys.argv[1:], os.environ))
File "/home/tscobb/Documents/BM/apache-cassandra-2.0.5/bin/cqlsh", line 2030, in main
display_float_precision=options.float_precision)
File "/home/tscobb/Documents/BM/apache-cassandra-2.0.5/bin/cqlsh", line 480, in __init__
cql_version=cqlver, transport=transport)
File "/home/tscobb/Documents/BM/apache-cassandra-2.0.5/bin/../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/connection.py", line 143, in connect
File "/home/tscobb/Documents/BM/apache-cassandra-2.0.5/bin/../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/connection.py", line 59, in __init__
File "/home/tscobb/Documents/BM/apache-cassandra-2.0.5/bin/../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/thrifteries.py", line 157, in establish_connection
File "/home/tscobb/Documents/BM/apache-cassandra-2.0.5/bin/../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/cassandra/Cassandra.py", line 465, in login
File "/home/tscobb/Documents/BM/apache-cassandra-2.0.5/bin/../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/cassandra/Cassandra.py", line 486, in recv_login
cql.cassandra.ttypes.AuthenticationException: AuthenticationException(why='org.apache.cassandra.exceptions.UnavailableException: Cannot achieve consistency level QUORUM')
老实说,在这一点上,我不知道如何进行。如果有人有任何想法,将不胜感激。
我在 Ubuntu vm 中运行 cassandra 2.0.5。不确定这是否有帮助。
另外,当我运行时:
nodetool status
出现以下情况:
nodetool status
Datacenter: datacenter1
=======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns Host ID Rack
UN 127.0.0.1 1.57 MB 256 100.0% 37ae1d4c-0df5-43d2-9593-4603ac68c34a rack1