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From "Todd Lipcon (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-3013) HA: NameNode format doesn't pick up dfs.namenode.name.dir.NameServiceId configure
Date Tue, 28 Feb 2012 00:45:49 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3013?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon resolved HDFS-3013.
-------------------------------

       Resolution: Fixed
    Fix Version/s: HA branch (HDFS-1623)
     Hadoop Flags: Reviewed

Ran the tests, no new failures introduced. I also double checked that the new test case fails
if the fix is removed. Committed to HA branch. Thanks, Mingjie!
                
> HA: NameNode format doesn't pick up dfs.namenode.name.dir.NameServiceId configure
> ---------------------------------------------------------------------------------
>
>                 Key: HDFS-3013
>                 URL: https://issues.apache.org/jira/browse/HDFS-3013
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, name-node
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Mingjie Lai
>            Assignee: Mingjie Lai
>             Fix For: HA branch (HDFS-1623)
>
>         Attachments: HDFS-3013.patch
>
>
> One problem I observed at HA branch is that namenode -format doesn't pick up the right
configured dfs.namenode.name.dir.NameServiceId. In this case, ``namenode -format'' will format
the default directory instead of the configured one, while namenode will use the correct one.

> The root cause is that NameNode.initializeGenericKeys() is only invoked at the NameNode
constructor. So it doesn't get called by static methods like format and finalize. 

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