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From "Robert Joseph Evans (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-2897) Enable a single 2nn to checkpoint multiple nameservices
Date Wed, 18 Apr 2012 20:30:40 GMT

     [ https://issues.apache.org/jira/browse/HDFS-2897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Robert Joseph Evans updated HDFS-2897:

    Target Version/s: 2.0.0, 3.0.0  (was: 0.23.1)
> Enable a single 2nn to checkpoint multiple nameservices
> -------------------------------------------------------
>                 Key: HDFS-2897
>                 URL: https://issues.apache.org/jira/browse/HDFS-2897
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: name-node
>    Affects Versions: 0.23.0
>            Reporter: Eli Collins
>             Fix For: 0.23.0
> The dfs.namenode.secondary.http-address needs to be suffixed with a particular nameservice.
It would be useful to be able to be able to configure a single 2NN to checkpoint all the nameservices
for a NN rather than having to run a separate 2NN per nameservice. It could potentially checkpoint
all namenode IDs for a nameservice as well but given that the standby is capable of checkpointing
and is required I think we can ignore this case.

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