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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (HADOOP-2460) NameNode could delete wrong edits file when there is an error
Date Tue, 18 Dec 2007 23:53:43 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12552939
] 

rangadi edited comment on HADOOP-2460 at 12/18/07 3:51 PM:
----------------------------------------------------------------

Suggested patch. I tested this patch with a forced failure.

      was (Author: rangadi):
    Suggested patch. I tested with patch with a forced failure.
  
> NameNode could delete wrong edits file when there is an error
> -------------------------------------------------------------
>
>                 Key: HADOOP-2460
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2460
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.15.0
>            Reporter: Raghu Angadi
>            Assignee: dhruba borthakur
>             Fix For: 0.15.2
>
>         Attachments: HADOOP-2460.patch
>
>
> On one of the clusters two namenode directories were specified. The second directory
had errors and edits log sync failed. Namenode was supposed to run with the good directory,
but it exited with a 'fatal error' message.
> Looks like it is caused by a bug in {{processIOError()}} in FSEditsLog.java. It removes
the wrong directory since it passes in index into {{errorStreams}} rather than index into
{{editStreams}} by mistake.
> This probably should go in 0.15.2.

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