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https://issues.apache.org/jira/browse/HDFS-7213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinayakumar B updated HDFS-7213:
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Fix Version/s: (was: 2.7.0)
2.6.1
> processIncrementalBlockReport performance degradation
> -----------------------------------------------------
>
> Key: HDFS-7213
> URL: https://issues.apache.org/jira/browse/HDFS-7213
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.4.0
> Reporter: Daryn Sharp
> Assignee: Eric Payne
> Priority: Critical
> Labels: 2.6.1-candidate
> Fix For: 2.6.1
>
> Attachments: HDFS-7213.1412804753, HDFS-7213.1412806496.txt
>
>
> {{BlockManager#processIncrementalBlockReport}} has a debug line that is
> missing a {{isDebugEnabled}} check. The write lock is being held. Coupled
> with the increase in incremental block reports from receiving blocks, under
> heavy load this log line noticeably degrades performance.
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