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Date: Thu, 26 Apr 2012 19:48:27 +0000 (UTC)
From: "Colin Patrick McCabe (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HDFS-3277) fail over to loading a different
 FSImage if the first one we try to load is corrupt
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     [ https://issues.apache.org/jira/browse/HDFS-3277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Colin Patrick McCabe updated HDFS-3277:
---------------------------------------

    Status: Patch Available  (was: Open)
    
> fail over to loading a different FSImage if the first one we try to load is corrupt
> -----------------------------------------------------------------------------------
>
>                 Key: HDFS-3277
>                 URL: https://issues.apache.org/jira/browse/HDFS-3277
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HDFS-3277.002.patch
>
>
> Most users store multiple copies of the FSImage in order to prevent catastrophic data loss if a hard disk fails.  However, our image loading code is currently not set up to start reading another FSImage if loading the first one does not succeed.  We should add this capability.
> We should also be sure to remove the FSImage directory that failed from the list of FSImage directories to write to, in the way we normally do when a write (as opopsed to read) fails.

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