[AMBARI-3735] Reassign Master: moving the NameNode while NameNode HA is enabled breaks HBase

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4.2
• Fix Version/s: 1.4.2
• Component/s: ambari-web
• Assignee: Oleg Nechiporenko
• Reporter: Oleg Nechiporenko
• Created: 11/Nov/13 13:28
• Updated: 11/Nov/13 13:35
• Resolved: 11/Nov/13 13:35

Description

With NameNode HA enabled, move one of the NameNodes to another host.
During the final "Start all services" task of the Reassign Master wizard, HBase service check fails.
This is because the Reassign Master wizard incorrectly sets hbase.rootdir in hbase-site.xml to hdfs://<new-namenode-host>/apps/hbase/data.
When HA is enabled, the value of hbase.rootdir should always be hdfs://<nameservice-id>/apps/hbase/data.

Also, Reassign Master does not handle dfs.namenode.https-address.<nameservice-id>.nn[1|2] parameters in hdfs-site.xml properly; it does not update the value to use the new NameNode host. On the other hand *dfs.namenode.http-address.<nameservice-id>.nn[1|2] parameters are handled properly already.