Nikhil Mulley created HDFS-9692:
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Summary: Report top 10 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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