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From "Lei (Eddy) Xu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7722) DataNode#checkDiskError should also remove Storage when error is found.
Date Wed, 04 Feb 2015 20:54:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14305930#comment-14305930
] 

Lei (Eddy) Xu commented on HDFS-7722:
-------------------------------------

[~usrikanth] Would you mind to let me take on this one?  I already have a patch available
for it.

Thanks a lot!



> DataNode#checkDiskError should also remove Storage when error is found.
> -----------------------------------------------------------------------
>
>                 Key: HDFS-7722
>                 URL: https://issues.apache.org/jira/browse/HDFS-7722
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 2.6.0
>            Reporter: Lei (Eddy) Xu
>            Assignee: Srikanth Upputuri
>
> When {{DataNode#checkDiskError}} found disk errors, it removes all block metadatas from
{{FsDatasetImpl}}. However, it does not removed the corresponding {{DataStorage}} and {{BlockPoolSliceStorage}}.

> The result is that, we could not directly run {{reconfig}} to hot swap the failure disks
without changing the configure file.



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