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https://issues.apache.org/jira/browse/HDFS-10225?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lei (Eddy) Xu updated HDFS-10225:
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Attachment: HDFS-10225.002.patch
Hi, [~cmccabe] and [~arpitagarwal] Thanks for the suggestions. I modified the
patch to disallow changing storage type in the DataNode runtime.
So that in order to achieve the purpose, user should either restart DN or,
remove the disk and add it back with a new storage type.
> DataNode hot swap drives should recognize storage type tags.
> -------------------------------------------------------------
>
> Key: HDFS-10225
> URL: https://issues.apache.org/jira/browse/HDFS-10225
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 2.7.2
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Attachments: HDFS-10225.000.patch, HDFS-10225.001.patch,
> HDFS-10225.002.patch
>
>
> The current hot swap code only differentiate data dirs by their paths. People
> might want to change the types of certain data dirs from the default value in
> an existing cluster.
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