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https://issues.apache.org/jira/browse/HDFS-7173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14183585#comment-14183585
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Colin Patrick McCabe commented on HDFS-7173:
--------------------------------------------
{code}
/** The unchanged locations that are existed in the old configuration */
{code}
Should be "the unchanged locations that exist in the old configuration"
There's a whitepsace change in DataNode.java that isn't necessary, can we
remove that?
+1 once those are addressed.
> 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
>
>
> 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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