Hbase error zookeeper exists failed after 3 retiries

Question

I am using HBASE 0.94.8 standalone mode in Ubuntu. Its working fine i am able to do every operations in Hbase-shell. But after i logged of my system its giving following err

Answer 1

Issue:

Hbase error zookeeper exists failed after 3 retiries clearly indicates that zookeeper quorum is not running - most probable cause can be some inconsistency with your zookeeper.quorum setting in conf/hbase-site.xml, the minimal has to be:

  
    hbase.rootdir
    file:///home/testuser/hbase
  
  
    hbase.zookeeper.property.dataDir
    /home/testuser/zookeeper
  

In the next section it is succinctly mentioned why zookeeper is required and how can one verify if it's running.

---

An overview:

Pre-assuming from your text (standalone setup) - you're mixing things up. Zookeeper in simple words manages HBase, and is a must requirement.

By default HBase itself handles zookeeper setup, start-stop (though one can change) - to verify look into the file conf/hbase-evn.sh (in your hbase directory) there must be a line:

export HBASE_MANAGES_ZK=true

Basically tells HBase whether it should manage its own instance of Zookeeper or not. In case it is set to false, edit to true.

Now for verification there's a helpful command (forget about the ps and then grep):

$ jps

the command will list all the java processes (HBase is itself a Java application) on the machine i.e. the probable output has to be (for a minimal standalone HBase setup):

62019 Jps
61098 HMaster        
61233 HRegionServer     
61003 HQuorumPeer

Don't just kill the HBase process, instead use the start-stop utility:

$ ./bin/stop-hbase.sh

make the neccessary changes and start it again:

$ ./bin/start-hbase.sh

P.S. I could have misinterpreted your question (completely), do let me know in the comments I'll get back to you again and get the solution right - for the upcoming SO visitors.