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Posted to common-dev@hadoop.apache.org by "Owen O'Malley (JIRA)" <ji...@apache.org> on 2007/04/20 01:23:15 UTC

[jira] Updated: (HADOOP-1200) Datanode should periodically do a disk check

     [ https://issues.apache.org/jira/browse/HADOOP-1200?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Owen O'Malley updated HADOOP-1200:
----------------------------------

    Assignee: dhruba borthakur
    Priority: Blocker  (was: Major)

> Datanode should periodically do a disk check
> --------------------------------------------
>
>                 Key: HADOOP-1200
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1200
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.12.2
>            Reporter: Hairong Kuang
>         Assigned To: dhruba borthakur
>            Priority: Blocker
>             Fix For: 0.13.0
>
>
> HADOOP-1170 removed the disk checking feature. But this is a needed feature for maintaining a large cluster. I agree that checking the disk on every I/O is too costly. A nicer approach is to have a thread that periodically do a disk check. It then automatically decommissions itself when any error occurs.

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