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From Stack <st...@duboce.net>
Subject Re: coprocessor and hbase.regionserver.handler.count
Date Wed, 16 Jan 2019 19:17:16 GMT
On Mon, Jan 14, 2019 at 5:37 PM ming.liu <ming.liu@esgyn.cn> wrote:

> Hi, all,
>
>
>
> Our application is using coprocessor to communicate with HBase, not using
> the get()/put() client API. When there are large concurrency, the
> performance is degrading very fast.
>
>
Can you figure why? Thread-dumping, profiler?


> I checked there is hbase.regionserver.handler.count which control how many
> thread in RS to handle client request. Will coprocessor use those same
> threads?
>
>
Yes. CPs decorate the existing read/write paths serviced by handlers.

S



>
>
> thanks,
>
> Ming
>
>
>
>

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