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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4997) workaround for tmp file handling on DataNodes in 0.18 (HADOOP-4663)
Date Thu, 08 Jan 2009 23:02:59 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

dhruba borthakur updated HADOOP-4997:
-------------------------------------

    Attachment: deleteTmp-0.18.patch

when the datanode restarts, remove all blocks from the tmp directory of the datanode. However,
fsync does not throw an exception.

> workaround for tmp file handling on DataNodes in 0.18 (HADOOP-4663)
> -------------------------------------------------------------------
>
>                 Key: HADOOP-4997
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4997
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.18.0
>            Reporter: Raghu Angadi
>            Assignee: Raghu Angadi
>            Priority: Blocker
>             Fix For: 0.18.3
>
>         Attachments: deleteTmp-0.18.patch
>
>
> This is a temporary work around issues discussed in HADOOP-4663. 
> The proposal is to remove all the files under tmp directory, thus bringing the behavior
back to 0.17. The main cost is that sync() will not be supported. This is incompatible with
0.18.x, but not with 0.17 because of this reason.

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