ERROR: org.apache.hadoop.hbase.PleaseHoldException: Master is initializing-优快云博客

本文记录了在HBase中遇到的Master初始化问题，详细描述了尝试列出命名空间时遇到的PleaseHoldException异常，并提供了从日志中查找问题根源的方法。同时，文章分享了重启HBase的步骤，包括在Zookeeper中清除HBase状态，以及如何通过shell脚本进行启动和停止。

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hbase(main):004:0> list_namespace
NAMESPACE                                                                               

ERROR: org.apache.hadoop.hbase.PleaseHoldException: Master is initializing
	at org.apache.hadoop.hbase.master.HMaster.checkInitialized(HMaster.java:2934)
	at org.apache.hadoop.hbase.master.HMaster.getNamespaces(HMaster.java:3230)
	at org.apache.hadoop.hbase.master.MasterRpcServices.listNamespaceDescriptors(MasterRpcServices.java:1210)
	at org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java)
	at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:413)
	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:132)
	at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)
	at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304)

List all namespaces in hbase. Optional regular expression parameter could
be used to filter the output. Examples:

  hbase> list_namespace
  hbase> list_namespace 'abc.*'

Took 8.2660 seconds

查看日志

cd /usr/local/hbase-2.0.6/logs

master.HMaster: hbase:meta,,1.1588230740 is NOT online; state={1588230740 state=OPEN

停止hbase

stop-hbase.sh

到任意一个zookeeper集群节点:

zkCli.sh

rmr /hbase

启动HBase

start-hbase.sh

//参考https://blog.youkuaiyun.com/weixin_30553777/article/details/101360935