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https://issues.apache.org/jira/browse/HDFS-16521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HDFS-16521 started by Viraj Jasani.
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> DFS API to retrieve slow datanodes
> ----------------------------------
>
> Key: HDFS-16521
> URL: https://issues.apache.org/jira/browse/HDFS-16521
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: Viraj Jasani
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h
> Remaining Estimate: 0h
>
> In order to build some automation around slow datanodes that regularly show
> up in the slow peer tracking report, e.g. decommission such nodes and queue
> them up for external processing and add them back later to the cluster after
> fixing issues etc, we should expose DFS API to retrieve all slow nodes at a
> given time.
> Providing such API would also help add an additional option to "dfsadmin
> -report" that lists slow datanodes info for operators to take a look,
> specifically useful filter for larger clusters.
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