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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3596) Improve FSEditLog pre-allocation in branch-1
Date Thu, 20 Sep 2012 18:30:07 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13459835#comment-13459835
] 

Colin Patrick McCabe commented on HDFS-3596:
--------------------------------------------

Yes, I think you're right.  Luckily, it should be extremely rare to write more than 1 MB of
edits in a single batch, so this will seldom if ever be an issue.  However, we should fix
this for the sake of consistency.
                
> Improve FSEditLog pre-allocation in branch-1
> --------------------------------------------
>
>                 Key: HDFS-3596
>                 URL: https://issues.apache.org/jira/browse/HDFS-3596
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 1.1.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>             Fix For: 1.2.0
>
>         Attachments: HDFS-3596-b1.001.patch
>
>
> Implement HDFS-3510 in branch-1.  This will improve FSEditLog preallocation to decrease
the incidence of corrupted logs after disk full conditions.  (See HDFS-3510 for a longer description.)

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