Viraj Jasani created HDFS-16521:
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Summary: 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
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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