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https://issues.apache.org/jira/browse/HDFS-15244?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17068561#comment-17068561
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Brahma Reddy Battula commented on HDFS-15244:
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duplicated to which jira..?
> Make Decommission related configurations runtime refreshable
> ------------------------------------------------------------
>
> Key: HDFS-15244
> URL: https://issues.apache.org/jira/browse/HDFS-15244
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Major
>
> There are certain configurations that can be tuned to increase the speed of
> Decommissioning, But restarting namenode for it seems to be a heavy operation.
> Propose to make these configurations, reconfigurable during runtime in order
> to speed-up decommissioning as per need.
> Proposed Configs :
> * {{dfs.namenode.replication.work.multiplier.per.iteration}}
> * {{dfs.namenode.replication.max-streams-hard-limit}}
> * {{dfs.namenode.replication.max-streams}}
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