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Posted to user@hbase.apache.org by King JKing <be...@gmail.com> on 2011/01/06 02:39:07 UTC

Hbase Memory

Dear all,

I use default configuration of HBase. That is 1000MB.

<name>hbase.regionserver.global.memstore.upperLimit</name>
<value>0.4</value>

<name>hbase.regionserver.global.memstore.lowerLimit</name>
<value>0.35</value>

But the memory used by HBase process is 1121MB? Anything wrong?
Thanks for support.

Re: Hbase Memory

Posted by Sean Bigdatafun <se...@gmail.com>.

I guess you meant that your  JVM heapsize was set as 1024MB, but you are
wondering why you saw 1121MB during your "top".

I guess JVM memory consumption is not only heapsize, therefor your real JVM
memory consumption would be "1024 + JVM non-heap size"


Anyone with more JVM background to explain?

Thanks,
Sean

On Thu, Jan 6, 2011 at 12:07 AM, Kevin Apte <
technicalarchitect2007@gmail.com> wrote:

> On Jan 5, 2011 8:39 PM, "King JKing" <be...@gmail.com> wrote:
> > Dear all,
> >
> > I use default configuration of HBase. That is 1000MB.
> >
> > <name>hbase.regionserver.global.memstore.upperLimit</name>
> > <value>0.4</value>
> >
> > <name>hbase.regionserver.global.memstore.lowerLimit</name>
> > <value>0.35</value>
> >
> > But the memory used by HBase process is 1121MB? Anything wrong?
> > Thanks for support.
>



-- 
--Sean

Re: Hbase Memory

Posted by Kevin Apte <te...@gmail.com>.

On Jan 5, 2011 8:39 PM, "King JKing" <be...@gmail.com> wrote:
> Dear all,
>
> I use default configuration of HBase. That is 1000MB.
>
> <name>hbase.regionserver.global.memstore.upperLimit</name>
> <value>0.4</value>
>
> <name>hbase.regionserver.global.memstore.lowerLimit</name>
> <value>0.35</value>
>
> But the memory used by HBase process is 1121MB? Anything wrong?
> Thanks for support.