Hbase errors issues and solutions

1)ERROR: KeeperErrorCode = NoNode for /hbase/master 

check

hbase(main):001:0> list

TABLE

ERROR: KeeperErrorCode = NoNode for /hbase/master

For usage try 'help "list"'

Took 8.2629 seconds

hbase(main):002:0> list

TABLE

ERROR: Call id=15, waitTime=60008, rpcTimeout=60000

For usage try 'help "list"'

Took 488.5749 seconds

 Dead regions server

hbase(main):002:0> status

1 active master, 2 backup masters, x servers, x dead, 0.0000 average load

Took 0.0711 seconds

HMASTER UI SHOWING DEAD REGION SERVER

hbase:meta,,1 is not online on 

Solution

In progress

How to Delete a directory from Hadoop cluster which is having commas in its name?

># hdfs dfs -rm -r  /hbase/WALs/wrker-02.xyz.com,16020,1623662453275-splitting

Picked up _JAVA_OPTIONS: -Djava.io.tmpdir=/hadoop/tmp

{"type":"log","host":"host_name","category":"YARN-yarn-GATEWAY-BASE","level":"WARN","system":"n05dlkcluster","time": "21/06/23 06:13:57","logger":"util.NativeCodeLoader","timezone":"UTC","log":{"message":"Unable to load native-hadoop library for your platform... using builtin-java classes where applicable"}}

Deleted /hbase/WALs/wrker-02.xyz.com,16020,1623662453275-splitting

How to clear Dead Region Servers in HBase UI?