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https://issues.apache.org/jira/browse/HDFS-4657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Colin Patrick McCabe updated HDFS-4657:
---------------------------------------
Resolution: Fixed
Fix Version/s: 2.2.0
Status: Resolved (was: Patch Available)
committed to branch-2 and trunk
> Limit the number of blocks logged by the NN after a block report to a
> configurable value.
> -----------------------------------------------------------------------------------------
>
> Key: HDFS-4657
> URL: https://issues.apache.org/jira/browse/HDFS-4657
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.0.4-alpha
> Reporter: Aaron T. Myers
> Assignee: Aaron T. Myers
> Fix For: 2.2.0
>
> Attachments: HDFS-4657.patch
>
>
> If incremental BR is received before first full BR NN will log a line for
> every block on a DN.
> This can impact restart times pretty substantially if the DNs have a lot of
> blocks, and since the FSNS write lock is held while processing the block
> report clients will not make any progress.
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