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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-9692) Report Top Namenode rpc consumers through JMX
Date Tue, 26 Jan 2016 23:58:40 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9692?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Anu Engineer resolved HDFS-9692.
    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
> 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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