Ubuntu – The node /hbase-unsecure is not in ZooKeeper. Check the value configured in ‘zookeeper.znode.parent’

hadoop

I am getting this error while starting standalone hBase on my ubuntu machine. Please help. Spent a huge amount of time to get it running. 🙁

What I have checked so far –

  1. /etc/hosts contains localhost 127.0.0.1
  2. HBase : hbase-0.98.3-hadoop2-bin.tar.gz
  3. Hadoop: hadoop-2.6.0.tar.gz
  4. I already have the node /hbase-unsecure in my hbase-site.xml.

When I try to run the command – create 'usertable', 'resultfamily'

It gives me following exception –

ERROR: The node /hbase-unsecure is not in ZooKeeper. It should have been written by the master. Check the value configured in 'zookeeper.znode.parent'. There could be a mismatch with the one configured in the master.

<configuration>
  <property>
    <name>hbase.rootdir</name>    
    <value>hdfs://localhost:54310/hbase</value>
  </property>

  <property>
    <name>hbase.zookeeper.property.dataDir</name>
    <value>/home/hduser/zookeeper</value>
  </property>

  <property>
      <name>hbase.zookeeper.property.clientPort</name>
      <value>2181</value>
      <description>Property from ZooKeeper's config zoo.cfg.
      The port at which the clients will connect.
      </description>
  </property>

  <property>
        <name>hbase.cluster.distributed</name>
        <value>true</value>
    </property>

   <property>
        <name>zookeeper.znode.parent</name>
        <value>/hbase-unsecure</value>
    </property>

    <property>
      <name>hbase.zookeeper.quorum</name>
      <value>localhost</value>
      <description>Comma separated list of servers in the ZooKeeper Quorum.
      </description>
    </property>

  <property>
         <name>dfs.replication</name>
         <value>1</value>
    </property>

  <property>
        <name>hbase.master</name> 
        <value>hadoop-master:60000</value>
  </property>

</configuration>

Best Answer

did you clean up zookeeper data directory from previous trials ? by default zookeeper.znode.parent is /hbase ,

options you can try

  1. if you are changing it intentionally then changing zookeeper data directory when changing it. In /home/hduser/zookeeper
  2. try changing znode.parent to /hbase
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