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 <[email protected]>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:[email protected]] > 发送时间: 2014年5月23日 11:59 > 收件人: [email protected] > 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 <[email protected] > >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. > > > > > >
