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https://issues.apache.org/jira/browse/HDFS-7877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14636255#comment-14636255
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Joep Rottinghuis commented on HDFS-7877:
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What do we need to do to get this going (again) in OSS? Just FYI, we're moving
forward with this at Twitter on production clusters.
> Support maintenance state for datanodes
> ---------------------------------------
>
> Key: HDFS-7877
> URL: https://issues.apache.org/jira/browse/HDFS-7877
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: Ming Ma
> Attachments: HDFS-7877-2.patch, HDFS-7877.patch,
> Supportmaintenancestatefordatanodes-2.pdf,
> Supportmaintenancestatefordatanodes.pdf
>
>
> This requirement came up during the design for HDFS-7541. Given this feature
> is mostly independent of upgrade domain feature, it is better to track it
> under a separate jira. The design and draft patch will be available soon.
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