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https://issues.apache.org/jira/browse/HDFS-16510?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Takanobu Asanuma resolved HDFS-16510.
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Resolution: Duplicate
I'm closing this jira as it is superceded by HDFS-16456. Thanks for trying to
solve this issue, [~cndaimin].
> Fix EC decommission when rack is not enough
> -------------------------------------------
>
> Key: HDFS-16510
> URL: https://issues.apache.org/jira/browse/HDFS-16510
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: block placement, ec
> Affects Versions: 3.3.1, 3.3.2
> Reporter: daimin
> Assignee: daimin
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> The decommission always fail when we start decommission multiple nodes on a
> cluster whose racks is not enough, a cluster with 6 racks to deploy RS-6-3,
> for example.
> We find that those decommission nodes cover at least a rack, it's actulaly
> like we are decommission one or more racks. And rack decommission is not well
> supported currently, especially for cluster whose racks is not enough already.
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