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https://issues.apache.org/jira/browse/HDFS-16076?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Takanobu Asanuma resolved HDFS-16076.
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Fix Version/s: 3.3.2
3.4.0
Resolution: Fixed
> Avoid using slow DataNodes for reading by sorting locations
> -----------------------------------------------------------
>
> Key: HDFS-16076
> URL: https://issues.apache.org/jira/browse/HDFS-16076
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs
> Reporter: tomscut
> Assignee: tomscut
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0, 3.3.2
>
> Time Spent: 2h 20m
> Remaining Estimate: 0h
>
> After sorting the expected location list will be: live -> slow -> stale ->
> staleAndSlow -> entering_maintenance -> decommissioned. This reduces the
> probability that slow nodes will be used for reading.
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