Erratic(?) CMS behaviour every 5d

[Srinivas Ramakrishna]

Hi Bernd -- Out of curiosity, did you get to the bottom of this?

-- ramki

On Tue, Oct 2, 2012 at 8:43 PM, Bernd Eckenfels <
bernd.eckenfels at googlemail.com> wrote:

> Hello,
>
>
>
> On Fri, Sep 28, 2012 at 7:48 PM, Bernd Eckenfels
> <bernd.eckenfels at googlemail.com> wrote:
> > The jstat utility has a -gccause option, do you think that will help
> > me as soon as the system gets into the trashing mode?
>
> I am currently seeing only "CMS Initial Mark" and "CMS Final Remark"
> as causes for OGC and "GCLocker" as cause for ParNew, so I think that
> jstat will not help me later on, when the machine starts to go wild
> again. The PrintCMSStatistics=2 was not helping me to get to the root.
> I will play around with PrintCMSInitiationStatistics but I really
> think the GC causes (which statistic was over what limit) should be
> more prominently available.
>
> Regarding my "problem": I do see a minor growth in the PGU, so I guess
> this is the reason. My fist step was to resize the PG and later on
> some heapdumping to find the class loader leak is in order.
>
> Bernd
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