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Does namenode and ranger admin need to be installed on the same node, when installing through ambari?

Explorer

Restarting of Namenode failed with error as it could not find the mysql connector jar. Similar failure happened with the HBase Master and region servers as well.

This happened when I installed ranger through ambari and have installed in a 4 node cluster with below set up:

Node1: Ambari-server

Node2: Ranger, mySQL

Node3: Namenode, HBase Master, HBase Region

Node4: HBase Region

After copying the mysql-connector-java.jar to the namenode and HBase servers, able to start them successfully.

So the question I have is, is it necessary for the Ranger admin to be installed on the same node as the Namenode and the HBase Master?

3 REPLIES 3

Re: Does namenode and ranger admin need to be installed on the same node, when installing through ambari?

Guru

Its not required that they are on the same nodes.

Re: Does namenode and ranger admin need to be installed on the same node, when installing through ambari?

Explorer

OK, so the mysql-connector-java.jar has to be installed manually on the Namenode and HBase Servers?

Re: Does namenode and ranger admin need to be installed on the same node, when installing through ambari?

Guru

Please paste the exact errors from both the logs.