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From Heng Chen <heng.chen.1...@gmail.com>
Subject Re: hbase get big table problem
Date Wed, 22 Jun 2016 09:09:22 GMT
8000/200 = 40,  if your table balance enough,  each RS will serve 40
requests per second,  that is OK for RS.   Have you try set xmn smaller to
reduce young generation?

2016-06-22 16:12 GMT+08:00 jinhong lu <lujinhong2@gmail.com>:

> 400 regions, 8000 eps for the whole table. hbase 1.0, AND heap
> -Xmx32G,-Xms32G, -Xmn4G
>
> Thanks,
> lujinhong
>
> > 在 2016年6月22日,15:53,Heng Chen <heng.chen.1986@gmail.com> 写道:
> >
> > How many regions do you have for the table?  8000 qps for one RS or for
> the
> > whole table?  What's your java heap size now?  and what's your hbase
> > version?
> >
> >
> > 2016-06-22 12:39 GMT+08:00 jinhong lu <lujinhong2@gmail.com>:
> >
> >> I got a cluster of 200 regionserver, and one of the tables is about 3T
> and
> >> 5 billion lines. Is it possible to get about 8000 Gets per second(about
> >> 100,000 lines)?
> >>
> >> I found YOUNG GC occurs every several senconds, each GC cost about
> >> 1second. if I set -Xmn bigger, the GC occurs every several minutes, but
> >> each GC cost more time.
> >>
> >> Any suggetion? thanks.
> >>
> >>
> >>
> >> =====================
> >> Thanks,
> >> lujinhong
> >>
> >>
>
>

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