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From iain wright <iainw...@gmail.com>
Subject Re: Does Replication Affect Write Performance On The Main Cluster
Date Sat, 16 Jul 2016 05:22:00 GMT
Wish I had an answer for you.. This is relevant to our interests as well as I planned to run
spark jobs on our slave cluster. If we don't hear conclusively on the list I will do some
benchmarking in a dev environment and attempt to reproduce

Best,
Iain

Sent from my iPhone

> On Jul 15, 2016, at 5:01 PM, Saad Mufti <saad.mufti@gmail.com> wrote:
> 
> Hi,
> 
> Don't have anything conclusive but I have seen some correlation where in
> very high write rate situation, the write rate can increase when major
> compaction or some other high CPU/network activity (for example we run some
> Spark jobs on our replica HBase cluster) stops happening on the replica
> cluster. Basically looks like the rate is lower when the replica cluster is
> busy with some other activity.
> 
> I wanted to know if this totally anecdotal evidence is something I should
> look into or whether it is something well known in the community.
> 
> Thanks in advance for any pointer or advice for someone relatively new to
> HBase.
> 
> ----
> Saad

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