Hadoop报错:“Operation category READ is not supported in state standby”问题解决

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问题:

18/01/10 05:31:01 INFO retry.RetryInvocationHandler: Exception while invoking getFileInfo of class ClientNamenodeProtocolTranslatorPB over geeke1/192.168.1.121:9000 after 3 fail over attempts. Trying to fail over after sleeping for 5709ms.
org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ipc.StandbyException): Operation category READ is not supported in state standby

其中Operation category READ is not supported in state standby

解决

可以先使用命令查看namenode的状态:

hdfs haadmin -getServiceState namenode1

发现它们状态都是:

standby

因此手动切换它们其中一个的状态:

hdfs haadmin -getServiceState namenode1

再次查看要切换的Namenode节点状态为:

active

可以通过Web端查看:

http://namenodeIP:50070/dfshealth.html#tab-overview
http://namenodeIP:8088/

后记

临时记录,比较粗略。以免忘记 。

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转载自blog.csdn.net/Kohang/article/details/79029688