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https://issues.apache.org/jira/browse/AMBARI-17951?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amruta Borkar updated AMBARI-17951:
-----------------------------------
Status: Open (was: Patch Available)
> Introduce validation of hostgroup mapping for active/standby namenode
> ---------------------------------------------------------------------
>
> Key: AMBARI-17951
> URL: https://issues.apache.org/jira/browse/AMBARI-17951
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server, blueprints
> Affects Versions: trunk
> Reporter: Amruta Borkar
> Assignee: Amruta Borkar
> Fix For: trunk
>
> Attachments: AMBARI-17951-v1.patch, AMBARI-17951-v2,
> AMBARI-17951-v3.patch
>
>
> Ambari allows user to specify following properties when Namenode HA is
> enabled, but does not validate for correct mapping.
> "dfs_ha_initial_namenode_active" : "hostname or hostgroup reference",
> "dfs_ha_initial_namenode_standby" : "hostname or hostgroup reference”
> If the values for above properties are mentioned incorrectly following
> exception is thrown and NAMENODE fails to start.
> 2016-07-27 18:54:43,522 WARN namenode.FSNamesystem
> (FSNamesystem.java:loadFromDisk(692)) - Encountered exception loading fsimage
> java.io.IOException: NameNode is not formatted.
> at
> org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:225)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1015)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:690)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:688)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:752)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:992)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:976)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1686)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1754)
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