question Re: Hbase : Caused by: java.net.ConnectException: Connection refused in Support Questions

Hbase : Caused by: java.net.ConnectException: Connection refused

basil_paul — Wed, 13 Jun 2018 16:42:31 GMT

I have a Hbase cluster of 3 nodes.
Below are the hostnames and daemons running on that machines.

hbase2 - Hmaster,RegionServer, Datanode and Nodemanager

hbase 1 - RegionServer,Namenode,Datanode, ResourceManager, NodeManager

hbase 3 - RegionServer, Datanode and Nodemanager

The moment I enter the run start-hbase.sh script. It throws the below given error

2018-06-13 14:56:52,455 INFO [hbase2:60000.activeMasterManager] retry.RetryInvocationHandler: Exception while invoking getFileInfo of class ClientNamenodeProtocolTranslatorPB over hbase2/10.94.1.119:8020 after 11 fail over attempts. Trying to fail over after sleeping for 17938ms. java.net.ConnectException: Call From hbase2/10.94.1.119 to hbase2:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused.

Hmaster is not running. RegionServers are working fine

Re: Hbase : Caused by: java.net.ConnectException: Connection refused

asirna — Wed, 13 Jun 2018 23:01:32 GMT

@Basil Paul,

Looks like your Namenode is not running. Start the NameNode first and then try starting HBase master.

Also, it is better to give proper hostnames instead of hbase1, hbase2 etc.

Please "Accept" the answer If this helps you. This will be really useful for other community users

-Aditya

Re: Hbase : Caused by: java.net.ConnectException: Connection refused

basil_paul — Thu, 14 Jun 2018 10:40:09 GMT

@Aditya Sirna Thankyou buddy. Started Namenode and it worked fine