我有一个15个节点Cassandra 3.9群集。最近，我面临着一个问题，我的一个节点是堆积八卦片段消息。根据我在类似的报告中发现的一些指导，我在该节点上运行了" Nodetool Resetlocalschema"。当类似的八卦错误继续显示在日志中
WARN [GossipTasks:1] 2018-02-11 23:55:34,197 Gossiper.java:771 - Gossip stage has 180317 pending tasks; skipping status check (no nodes will be marked down)
我也看到以下例外。关于如何克服这一点并使该节点恢复正常的指导吗？另外，我应该提到我在cassandra.yaml文件中启用了passwordauthenticator。
ERROR [Native-Transport-Requests-1] 2018-02-11 23:55:33,581 Message.java:617 - Unexpected exception during request; channel = [id: 0xbaa65545,
L:/10.1.21.51:9042 - R:/10.1.86.40:35082]
java.lang.RuntimeException: com.google.common.util.concurrent.UncheckedExecutionException: java.lang.IllegalArgumentException: Unknown keyspace
/cf pair (system_auth.roles)
at org.apache.cassandra.auth.PasswordAuthenticator.authenticate(PasswordAuthenticator.java:107) ~[apache-cassandra-3.9.jar:3.9]
at org.apache.cassandra.auth.PasswordAuthenticator.access$300(PasswordAuthenticator.java:59) ~[apache-cassandra-3.9.jar:3.9]
at org.apache.cassandra.auth.PasswordAuthenticator$PlainTextSaslAuthenticator.getAuthenticatedUser(PasswordAuthenticator.java:220) ~[ap
ache-cassandra-3.9.jar:3.9]
at org.apache.cassandra.transport.messages.AuthResponse.execute(AuthResponse.java:78) ~[apache-cassandra-3.9.jar:3.9]
at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:513) [apache-cassandra-3.9.jar:3.9]
at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:407) [apache-cassandra-3.9.jar:3.9]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) [netty-all-4.0.39.Final.jar:4.0.39.Fi
nal]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:366) [netty-all-4.0.39.Final.jar
:4.0.39.Final]
at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:35) [netty-all-4.0.39.Final.jar:4.0.39.
Final]
at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:357) [netty-all-4.0.39.Final.jar:4.0.39.Fina
l]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_91]
at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164) [apache
-cassandra-3.9.jar:3.9]
at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:109) [apache-cassandra-3.9.jar:3.9]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]
Caused by: com.google.common.util.concurrent.UncheckedExecutionException: java.lang.IllegalArgumentException: Unknown keyspace/cf pair (system_auth.roles)
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2203) ~[guava-18.0.jar:na]
at com.google.common.cache.LocalCache.get(LocalCache.java:3937) ~[guava-18.0.jar:na]
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941) ~[guava-18.0.jar:na]
at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824) ~[guava-18.0.jar:na]
at org.apache.cassandra.auth.AuthCache.get(AuthCache.java:108) ~[apache-cassandra-3.9.jar:3.9]
at org.apache.cassandra.auth.PasswordAuthenticator.authenticate(PasswordAuthenticator.java:88) ~[apache-cassandra-3.9.jar:3.9]
... 13 common frames omitted
实际上，通过简单地重新启动我的群集的种子节点，然后首先重新启动我的群集中的其余节点，从而解决了这个问题。感谢所有输入。真的很感激。