cassandra - 保存的集群名称测试集群！= 配置名称

问题描述

当我收到此错误时，我应该如何机器人新的 Cassandra 节点?

How am I supposed to bot a new Cassandra node when I get this error?

INFO [SSTableBatchOpen:1] 2014-02-25 01:51:17,132 SSTableReader.java (line 223) Opening /var/lib/cassandra/data/system/local/system-local-jb-5 (5725 bytes)
ERROR [main] 2014-02-25 01:51:17,377 CassandraDaemon.java (line 237) Fatal exception during initialization
org.apache.cassandra.exceptions.ConfigurationException: Saved cluster name Test Cluster != configured name thisisstupid
        at org.apache.cassandra.db.SystemKeyspace.checkHealth(SystemKeyspace.java:542)
        at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:233)
        at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:462)
        at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:552)

cassandra.yaml 文件中的集群名称为:

Name of cluster in the cassandra.yaml file is:

cluster_name: 'thisisstupid'

我该如何解决?

推荐答案

您可以通过更新 system.local 表中的名称来重命名集群而不删除数据(但您必须为每个节点执行此操作...)

You can rename the cluster without deleting data by updating it's name in the system.local table (but you have to do this for each node...)

cqlsh> UPDATE system.local SET cluster_name = 'test' where key='local';
# flush the sstables to persist the update.
bash $ ./nodetool flush

最后，您需要将集群重命名为 cassandra.yaml 中的新名称(再次在每个节点上)

Finally you need to rename the cluster to the new name in cassandra.yaml (again on each node)

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