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https://issues.apache.org/jira/browse/HDFS-16634?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shilun Fan updated HDFS-16634:
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Component/s: metrics
> Dynamically adjust slow peer report size on JMX metrics
> -------------------------------------------------------
>
> Key: HDFS-16634
> URL: https://issues.apache.org/jira/browse/HDFS-16634
> Project: Hadoop HDFS
> Issue Type: Task
> Components: metrics
> Affects Versions: 3.4.0
> Reporter: Viraj Jasani
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 3h 10m
> Remaining Estimate: 0h
>
> On a busy cluster, sometimes it takes bit of time for deleted node(from the
> cluster)'s "slow node report" to get removed from slow peer json report on
> Namenode JMX metrics. In the meantime, user should be able to browse through
> more entries in the report by adjusting i.e. reconfiguring
> "dfs.datanode.max.nodes.to.report" so that the list size can be adjusted
> without user having to bounce active Namenode just for this purpose.
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