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From "Lei (Eddy) Xu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7173) Only keep successfully loaded volumes in the configuration.
Date Fri, 24 Oct 2014 22:15:34 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7173?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lei (Eddy) Xu updated HDFS-7173:
--------------------------------
    Attachment: HDFS-7173.003.patch

Thanks for the quick reviews, [~cmccabe]. I updated the patch based on your comments. 

> Only keep successfully loaded volumes in the configuration.
> -----------------------------------------------------------
>
>                 Key: HDFS-7173
>                 URL: https://issues.apache.org/jira/browse/HDFS-7173
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode
>    Affects Versions: 3.0.0, 2.6.0
>            Reporter: Lei (Eddy) Xu
>            Assignee: Lei (Eddy) Xu
>         Attachments: HDFS-7173.000.combo.patch, HDFS-7173.000.patch, HDFS-7173.001.combo.patch,
HDFS-7173.001.patch, HDFS-7173.002.combo.patch, HDFS-7173.002.patch, HDFS-7173.003.combo.patch,
HDFS-7173.003.patch
>
>
> Hot swapping data volumes might fail. The user should be able to fix the failed volumes
and disks, then ask the {{DataNode}} to retry the previously failed volumes. 
> To attempt to reload the failed volume again on the same directory, this failed directory
must not be presented in the {{Configuration}} object that {{DataNode has}}. Therefore, it
should only put successfully loaded volumes into the {{Configuration}} object.



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