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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HDFS-3736) Failure in starting NN due to fsimage loading failure
Date Tue, 26 Feb 2013 00:50:18 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Andrew Wang reassigned HDFS-3736:

    Assignee: Andrew Wang
> Failure in starting NN due to fsimage loading failure
> -----------------------------------------------------
>                 Key: HDFS-3736
>                 URL: https://issues.apache.org/jira/browse/HDFS-3736
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: ha, namenode
>    Affects Versions: 2.0.0-alpha
>            Reporter: suja s
>            Assignee: Andrew Wang
> Came across a situation as follows in our test environment.
> NNs running in HA mode.
> While uploading checkpoint, MD5 file renaming from tmp to actual file failed due to some
reason which is unknown (non IO exception).
> At the same time at standby side, connection imeout occured.
> This lead to tmp MD5 file and original fsimage file (ckpt fsimage file was renamed successfully
to original fsimage file) in the name dir of active NN.
> On NN restart it checks for MD5 file and since it is not found, startup is failing.

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