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https://issues.apache.org/jira/browse/HDFS-15879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17322602#comment-17322602
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tomscut commented on HDFS-15879:
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Thanks [~prasad-acit] for your reminding. I will commit to branch-3.3 ASAP.
> Exclude slow nodes when choose targets for blocks
> -------------------------------------------------
>
> Key: HDFS-15879
> URL: https://issues.apache.org/jira/browse/HDFS-15879
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: tomscut
> Assignee: tomscut
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 4h 50m
> Remaining Estimate: 0h
>
> Previously, we have monitored the slow nodes, related to
> [HDFS-11194|https://issues.apache.org/jira/browse/HDFS-11194].
> We can use a thread to periodically collect these slow nodes into a set. Then
> use the set to filter out slow nodes when choose targets for blocks.
> This feature can be configured to be turned on when needed.
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