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From "Lei (Eddy) Xu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7419) Improve error messages for DataNode hot swap drive feature
Date Mon, 24 Nov 2014 04:15:12 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7419?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lei (Eddy) Xu updated HDFS-7419:
--------------------------------
    Attachment: HDFS-7419.003.patch

[~cmccabe] Thanks for the reviews! I have updated the patch to address your comments.



> Improve error messages for DataNode hot swap drive feature
> ----------------------------------------------------------
>
>                 Key: HDFS-7419
>                 URL: https://issues.apache.org/jira/browse/HDFS-7419
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>    Affects Versions: 2.5.1
>            Reporter: Lei (Eddy) Xu
>            Assignee: Lei (Eddy) Xu
>         Attachments: HDFS-7419.000.patch, HDFS-7419.001.patch, HDFS-7419.002.patch, HDFS-7419.003.patch
>
>
> When DataNode fails to add a volume, it adds one failure message to {{errorMessageBuilder}}
in {{DataNode#refreshVolumes}}. However, the detailed error messages are not logged in DataNode's
log and they are emitted from clients. 
> This JIRA makes {{DataNode}} reports detailed failure in its log.



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