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https://issues.apache.org/jira/browse/HDFS-16368?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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farmmamba reassigned HDFS-16368:
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Assignee: farmmamba
> DFSAdmin supports refresh topology info without restarting namenode
> --------------------------------------------------------------------
>
> Key: HDFS-16368
> URL: https://issues.apache.org/jira/browse/HDFS-16368
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: dfsadmin, namanode
> Affects Versions: 2.7.7, 3.3.1
> Reporter: farmmamba
> Assignee: farmmamba
> Priority: Major
> Labels: features, pull-request-available
> Attachments: 0001.patch
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Currently in HDFS, if we update the rack info for rack-awareness, we may need
> to rolling restart namenodes to let it be effective. If cluster is large, the
> cost time of rolling restart namenodes is very log. So, we develope a method
> to refresh topology info without rolling restart namenodes.
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