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From "Yanbo Liang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-3878) Add an administrative command to download finalized edit log segments from the NN
Date Wed, 19 Sep 2012 11:51:08 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yanbo Liang updated HDFS-3878:
------------------------------

          Labels: patch  (was: )
    Release Note: 
Similarly to the `hdfs dfsadmin -fetchImage' command added in HDFS-2941,
this patch implemented the command 'hdfs dfsadmin -fetchEdit'. 
It downloads all the edit log files which did not apply to the most recent fsimage from
the Name Node and saves them in the specified local directory.
          Status: Patch Available  (was: Open)
    
> Add an administrative command to download finalized edit log segments from the NN
> ---------------------------------------------------------------------------------
>
>                 Key: HDFS-3878
>                 URL: https://issues.apache.org/jira/browse/HDFS-3878
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: hdfs client, name-node
>    Affects Versions: 2.0.0-alpha
>            Reporter: Aaron T. Myers
>              Labels: patch
>         Attachments: HDFS-3878.patch
>
>
> Similarly to the `hdfs dfsadmin -fetchImage' command added in HDFS-2941, it would be
nice to have an admin command capable of fetching edit log segments. This could be useful,
for example, for use in a script designed to back up the NN on-disk metadata.

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