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From Ted Yu <yuzhih...@gmail.com>
Subject Re: 答复: what in regionserver's Used Heap
Date Fri, 23 May 2014 14:33:56 GMT
You can use jmap with -histo option to find out heap consumption:
http://docs.oracle.com/javase/7/docs/technotes/tools/share/jmap.html

Please pastebin jmap output.

Cheers


On Thu, May 22, 2014 at 11:30 PM, sunweiwei <sunww@asiainfo-linkage.com>wrote:

> Hi Ted
>
> I have checked regionsever:60030/rs-status#regionMemstoreStats. Memstore
> and Cache Size is very small.
> But Used Heap is very large.
> Is there Any other thing in the Used Heap, and use lots of heaps?
>
> Thanks
>
> -----邮件原件-----
> 发件人: Ted Yu [mailto:yuzhihong@gmail.com]
> 发送时间: 2014年5月23日 11:59
> 收件人: user@hbase.apache.org
> 主题: Re: what in regionserver's Used Heap
>
> On regionsever:60030/rs-status#regionMemstoreStats, you should be able to
> see how much memstore each region uses.
>
> You can also use ganglia, etc to view the metrics.
> See http://hbase.apache.org/book.html#hbase_metrics (15.4.4.3 and
> 15.4.4.7)
>
> Cheers
>
>
> On Thu, May 22, 2014 at 8:39 PM, sunweiwei <sunww@asiainfo-linkage.com
> >wrote:
>
> > Hi
> >
> >
> >
> > I'm using hbase0.96.
> >
> >
> >
> > In hbase web, I see :
> >
> > Max Heap is 16.0 G
> >
> > Memstore Size is 208.6 M
> >
> > Cache Size is  138M
> >
> > Cache Free is 6.2G
> >
> >
> >
> > And Used Heap is 10.2 G.
> >
> >
> >
> > Used Heap is  large.  I want to know  what   could be  in  then Used
> Heap.
> >
> >
> >
> >
> > Thanks.
> >
> >
>
>

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