Jinhong: Please take a look at 3rd paragraph of: http://hbase.apache.org/book.html#gcpause
Cheers On Wed, Jun 22, 2016 at 2:09 AM, Heng Chen <[email protected]> wrote: > 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 <[email protected]>: > > > 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 <[email protected]> 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 <[email protected]>: > > > > > >> 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 > > >> > > >> > > > > >
