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From Huy Le <hu...@springpartners.com>
Subject Re: Out of control memory consumption
Date Wed, 09 Feb 2011 18:52:52 GMT
>
> If the heap usages continues to grow an OOM will eventually be thrown.
> Are you experiencing OOMs on these boxes?  If you are not OOMing, then
> what problem are you experiencing (excessive CPU use garbage collection
> for one example)?
>
>
>
No OOM.  The JVM just too busy doing GC when the used heap size is big
making this node unresponsive to its peers on the cluster.


>
> > Our JVM info:
> >
> > java version "1.6.0_21"
> > Java(TM) SE Runtime Environment (build 1.6.0_21-b06)
> > Java HotSpot(TM) 64-Bit Server VM (build 17.0-b16, mixed mode)
> >
> > And JVM memory allocation:          -Xms3G -Xmx3G
> >
> > Non-heap memory usage is 138MB.
> >
> > Any recommendation where should look to see why memory usage keep
> growing?
> >
> > Thanks!
> >
> > Huy
>
> Are you using standard, mmap_index_only, or mmap io?  Are you using JNA?
>
>

We use standard disk access mode with JNA.

Huy

-- 
Huy Le
Spring Partners, Inc.
http://springpadit.com

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