Chao Sun created HDFS-15335:
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Summary: Report top N metrics for files in get listing ops
Key: HDFS-15335
URL: https://issues.apache.org/jira/browse/HDFS-15335
Project: Hadoop HDFS
Issue Type: Improvement
Components: hdfs, metrics
Reporter: Chao Sun
Currently HDFS has {{filesInGetListingOps}} metrics which tells the total
number of files in all listing ops. However, it will be useful to report the
top N users who contribute most to this. This can help to identify the
potential bad users and stop the abusing against NameNode.
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