master.HMaster: Failed to become active master
Hbase集群启动后自动退出,日志错误:
fatal error: master.HMaster: Failed to become active master
java.io.IOException: Timedout 300000ms waiting for namespace table to be assigned
原因:随意kill掉Hbase的进程,导致"死亡回滚''具体见参考。
解决方法:
此前Hbse集群偷了个懒,把Habse节点间允许的最大时差调的很大,但是后来还是因为超时导致Hbase启动不了,所以这次先同步了一下集群中各节点的时间,具体参考Linux集群的NTP服务器时间同步
!注意:第10步要在root权限下进行,否则/var/spool/mail/centos下出现ntpdate[4378]: bind() fails: Permission denied。
进入zookeeper客户端
zkCli.sh
删除掉/hbase/namespace下的自定义名称空间
delete /hbase/namespace/c:d
重新启动hbase
start-hbase.sh
参考:
Procedure V2: Master fails to come up due to rollback of create namespace table
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