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https://issues.apache.org/jira/browse/HDFS-9032?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yi Liu updated HDFS-9032:
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Attachment: HDFS-9032.001.patch
> Small improvement for DatanodeManager#sortLocatedBlocks
> -------------------------------------------------------
>
> Key: HDFS-9032
> URL: https://issues.apache.org/jira/browse/HDFS-9032
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Yi Liu
> Assignee: Yi Liu
> Priority: Minor
> Attachments: HDFS-9032.001.patch
>
>
> This is a minor improvement:
> In sortLocatedBlocks, (in most cases) if locations of located block don't
> contain decommissioned/stale datanode, no need to call Arrays.sort.
> Also we can make the comparator as the class variable.
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