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From "Lei (Eddy) Xu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7833) DataNode reconfiguration does not recalculate valid volumes required, based on configured failed volumes tolerated.
Date Fri, 20 Mar 2015 01:35:38 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lei (Eddy) Xu updated HDFS-7833:
--------------------------------
    Attachment: HDFS-7833.001.patch

[~cnauroth] Thanks for reviewing this.

I updated the patch to add the test you described.

> DataNode reconfiguration does not recalculate valid volumes required, based on configured
failed volumes tolerated.
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-7833
>                 URL: https://issues.apache.org/jira/browse/HDFS-7833
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 2.6.0
>            Reporter: Chris Nauroth
>            Assignee: Lei (Eddy) Xu
>         Attachments: HDFS-7833.000.patch, HDFS-7833.001.patch
>
>
> DataNode reconfiguration never recalculates {{FsDatasetImpl#validVolsRequired}}.  This
may cause incorrect behavior of the {{dfs.datanode.failed.volumes.tolerated}} property if
reconfiguration causes the DataNode to run with a different total number of volumes.



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