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From Anoop John <anoop.hb...@gmail.com>
Subject Re: performance difference between observer and endpoint
Date Tue, 29 Dec 2015 07:20:42 GMT
Mind sharing some more details like what exactly u are trying to do with
these scans?  How is this observers look like and the EPs.  What abt more
bigger range scans?  Any perf diff?

-Anoop-

On Mon, Dec 28, 2015 at 11:49 AM, hongbin ma <mahongbin@apache.org> wrote:

> hi experts,
>
> we're working on using observer/endpoint to visit hbase rows. During our
> experiments we found that for *small interval scans* (where the scan range
> is within a single region, and the scan range contains only tens/hundreds
> of rows), observer is times faster than endpoint. Our question is, for
> *small
> interval scans, *is observer naturally a better choice than endpoint?
>
> I do know how to use these two coprocessors, however I'm not quite clear
> about the fundamental difference of them that might lead to performance
> gap. Any documentations or insights are greatly appreciated.
>
> --
> Regards,
>
> *Bin Mahone | 马洪宾*
> Apache Kylin: http://kylin.io
> Github: https://github.com/binmahone
>

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