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https://issues.apache.org/jira/browse/HDFS-9692?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anu Engineer resolved HDFS-9692.
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Resolution: Duplicate
> Report Top Namenode rpc consumers through JMX
> ---------------------------------------------
>
> Key: HDFS-9692
> URL: https://issues.apache.org/jira/browse/HDFS-9692
> Project: Hadoop HDFS
> Issue Type: Wish
> Reporter: Nikhil Mulley
>
> Hi,
> I think it would really help if namenode(s) through metrics/jmx report the
> top rpc consumers, so it will be really handy to look at the rogue clients in
> times of despair/troubleshooting times.
> At times of rpc spikes on namenode, and callqueuelength increasing, it
> becomes tedious to figure out the offenders when there is a huge cluster (>1k
> nodes).
> Having rpc client information(src_host:src_port) in the top consumers list
> would help operators. Let me know if any other information is needed to make
> this feature added to namenode metrics system.
> thank you
> Nikhil
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