hbase master not starting

Question

I am running HBase on Hadoop in standalone mode. I have successfully installed hadoop,zookeeper and hbase but in hbase master is not starting. Below is my hbase-site.xml

<configuration>
  <property>
    <name>hbase.rootdir</name>
    <value>hdfs://localhost:9000/hbase</value>
  </property>
  <property>
    <name>hbase.zookeeper.property.dataDir</name>
    <value>/home/kumar/hdata/zookeeper</value>
  </property>
  <property>
    <name>hbase.zookeeper.property.clientPort</name>
    <value>2181</value>
  </property>
</configuration>

I have started hadoop and zookeeper services:

start-all.sh
zkServer.sh start
start-hbase.sh

and the processes I am getting in Jps command

2133 DataNode
1974 NameNode
2679 NodeManager
2365 SecondaryNameNode
3917 QuorumPeerMain
2527 ResourceManager
3935 Jps

Hbase shell is starting succcesfully, but when i run any command in shell like 'list' I am getting below error:

ERROR: KeeperErrorCode = NoNode for /hbase/master

After that I try to run master with below command

hbase master start

and I am getting below error:

    2018-10-15 18:51:51,380 ERROR [main] server.ZooKeeperServer: ZKShutdownHandler is not registered, so ZooKeeper server won't take any action on ERROR or SHUTDOWN server state changes
2018-10-15 18:51:51,437 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182] server.NIOServerCnxnFactory: Accepted socket connection from /127.0.0.1:34034
2018-10-15 18:51:51,479 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182] server.ServerCnxn: The list of known four letter word commands is : [{1936881266=srvr, 1937006964=stat, 2003003491=wchc, 1685417328=dump, 1668445044=crst, 1936880500=srst, 1701738089=envi, 1668247142=conf, 2003003507=wchs, 2003003504=wchp, 1668247155=cons, 1835955314=mntr, 1769173615=isro, 1920298859=ruok, 1735683435=gtmk, 1937010027=stmk}]
2018-10-15 18:51:51,479 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182] server.ServerCnxn: The list of enabled four letter word commands is : [[wchs, stat, stmk, conf, ruok, mntr, srvr, envi, srst, isro, dump, gtmk, crst, cons]]
2018-10-15 18:51:51,479 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182] server.NIOServerCnxn: Processing stat command from /127.0.0.1:34034
2018-10-15 18:51:51,485 INFO  [Thread-2] server.NIOServerCnxn: Stat command output
2018-10-15 18:51:51,491 INFO  [main] zookeeper.MiniZooKeeperCluster: Started MiniZooKeeperCluster and ran successful 'stat' on client port=2182
Could not start ZK at requested port of 2181.  ZK was started at port: 2182.  Aborting as clients (e.g. shell) will not be able to find this ZK quorum.
2018-10-15 18:51:51,497 ERROR [main] master.HMasterCommandLine: Master exiting
java.io.IOException: Could not start ZK at requested port of 2181.  ZK was started at port: 2182.  Aborting as clients (e.g. shell) will not be able to find this ZK quorum.
    at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:217)
    at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:140)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:149)
    at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:2983)
2018-10-15 18:51:51,500 INFO  [Thread-2] server.NIOServerCnxn: Closed socket connection for client /127.0.0.1:34034 (no session established for client)

Also I am not getting any response for local hbase web URL

localhost:60010

Share us the content of the file hbase-site.xml in HBASE_HOME/conf path. — Soheil Pourbafrani
Do you use built-in HBae Zookeeper or you installed a seperate Zookeeper? — Soheil Pourbafrani
Initially i use built in and getting error, but even after installing zookeeeper I am getting same error — Kumar Harsh

Soheil Pourbafrani Soheil Pourbafrani · Accepted Answer · 2018-10-15T14:08:31

HBase has a built-in instance of Zookeeper for just development environments and by default when you start HBase by the command start-hbase.sh it start the Zookeeper daemon, too. The error is because of you already start a standalone Zookeeper that uses the port 2181. When you start HBase it tries to start it's built-in zookeeper in port 2181, too and it got the error!

If you want to use standalone Zookeeper component, first edit the file hbase-env.sh and add the line: export HBASE_MANAGES_ZK=false (You also can search for HBASE_MANAGES_ZK variable in the file and set it to false). So now when you start the HBase, it just starts HBase Daemon and not Zookeeper anymore. Remember you should start the Zookeeper daemon before HBase.

hbase master not starting

1 Answers