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While executing any command in hbase shell, I am receiving the following error "ERROR: KeeperErrorCode = NoNode for /hbase/master" in hbase shell.

Started HBASE :

HOSTCHND:hbase-2.0.0 gvm$ ./bin/start-hbase.sh
localhost: running zookeeper, logging to /usr/local/Cellar/hbase-2.0.0/bin/../logs/hbase-gvm-zookeeper-HOSTCHND.local.out
running master, logging to /usr/local/Cellar/hbase-2.0.0/logs/hbase-gvm-master-HOSTCHND.local.out
: running regionserver, logging to /usr/local/Cellar/hbase-2.0.0/logs/hbase-gvm-regionserver-HOSTCHND.local.out

While Checking status in HBASE SHELL :

hbase(main):001:0> status

ERROR: KeeperErrorCode = NoNode for /hbase/master

Show cluster status. Can be 'summary', 'simple', 'detailed', or 'replication'. The
default is 'summary'. Examples:

hbase> status
hbase> status 'simple'
hbase> status 'summary'
hbase> status 'detailed'
hbase> status 'replication'
hbase> status 'replication', 'source'
hbase> status 'replication', 'sink'

Took 9.4096 seconds
hbase(main):002:0>

hbase-site.xml



hbase.rootdir
hdfs://localhost:9000/hbase


hbase.zookeeper.property.clientPort
2181


hbase.zookeeper.property.dataDir
/usr/local/Cellar/hbase-2.0.0/hbasestorage/zookeeper


hbase.cluster.distributed
true


hbase.zookeeper.quorum
localhost



Please let me know why this error happens while executing hbase commands?

First, make sure that the IP and host name mapping has been set up in the hosts file.

Second, modify the HBase temporary directory location. the temporary directory data will be emptied regularly. The default of the temporary directory is on the /tmp change them in hbase-site.xml


hbase.tmp.dir
/hbase/tmp
Temporary directory on the local filesystem.


If it doesn't works . clean hbase data directory ,also clean the metadata in zookeeper restart hbase again .

what is more ,check your ntp & firewall .

First, make sure that the IP and host name mapping has been set up in the hosts file.

Second, modify the HBase temporary directory location. the temporary directory data will be emptied regularly. The default of the temporary directory is on the /tmp change them in hbase-site.xml

<property>
        <name>hbase.tmp.dir</name>
        <value>/hbase/tmp</value>
        <description>Temporary directory on the local filesystem.</description>
</property>​

 

If it doesn't works . clean hbase data directory ,also clean the metadata in zookeeper restart hbase again .

what is more ,check your ntp & firewall .

was facing a similar issue: follow the below steps

People may face other issues also. Mentioning them below here"

1. Setup zookeeper also: https://www.tutorialspoint.com/zookeeper/zookeeper_installation.htm
2. May face permission issues so assign chmod -R 777 to /tmp/zookeeper, /usr/local/var/hbase, /usr/local/Cellar/hbase
3. Add admin.enableServer=false in bin/zoo.cfg to avoid address bind exceptions
4. Try to run both HBase and zookeeper without sudo.

In my case I was receiving this "ERROR: KeeperErrorCode = NoNode for /hbase/master" because HMaster process was not running.

Check with jps command.

hdusr@hdp-master-1:$ jps
27504 Main
32755 DataNode
23316 HQuorumPeer
27957 Jps
646 SecondaryNameNode
27097 HMaster
23609 HRegionServer
1562 Master
1722 Worker
911 ResourceManager
32559 NameNode
1167 NodeManager

 

If you don't see HMaster process as in above list then that's the reason for ERROR: KeeperErrorCode = NoNode. in hbase shell.

In $HBASE_HOME/logs directory check for hbase-***-master.log for specific error.

In my case there were 2 reasons ,

First :

 

WARN  [main-SendThread(localhost:2181)] zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection timed out

Which I solved by replacing 'localhost' with 'my machine's hostname' in hbase-site.xml. from this answer

Second :

    ERROR [master/spark-hdp-master-1:16000:becomeActiveMaster] master.HMaster: Failed to become active masterorg.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.AccessControlException): org.apache.hadoop.security.AccessControlException: SIMPLE authentication is not enabled.  Available:[TOKEN]