stack commented on HBASE-20672:

[~jain.ankit] Can you say why we need these extra counters (I'm wary adding 
counters because we already spend a bunch of our processing time counting)? 
What is "monitoring interval" (from RN)? How is it set? Is it an hbase thing? 
Or is it a monitoring system thing? Thanks.

> Create new HBase metrics ReadRequestRate and WriteRequestRate that reset at 
> every monitoring interval
> -----------------------------------------------------------------------------------------------------
>                 Key: HBASE-20672
>                 URL: https://issues.apache.org/jira/browse/HBASE-20672
>             Project: HBase
>          Issue Type: Improvement
>          Components: metrics
>            Reporter: Ankit Jain
>            Assignee: Ankit Jain
>            Priority: Minor
>             Fix For: 3.0.0
>         Attachments: HBASE-20672.branch-1.001.patch, 
> HBASE-20672.master.001.patch, HBASE-20672.master.002.patch, 
> HBASE-20672.master.003.patch
> Hbase currently provides counter read/write requests (ReadRequestCount, 
> WriteRequestCount). That said it is not easy to use counter that reset only 
> after a restart of the service, we would like to expose 2 new metrics in 
> HBase to provide ReadRequestRate and WriteRequestRate at region server level.

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