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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2460) NameNode could delete wrong edits file when there is an error
Date Wed, 19 Dec 2007 02:00:50 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12553200
] 

Raghu Angadi commented on HADOOP-2460:
--------------------------------------

Test failure looks unrelated. The patch applies to both trunk and branch-0.15.


> 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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