Long pauses with parallel collector
kalle at rosenbaum.se
Wed Mar 19 13:33:38 UTC 2008
Yes, I think that's a good idea too.
Jon Masamitsu wrote:
> Karl Rosenbaum wrote:
>> Yes, it should be the serial compaction that we see, but why don't I
>> see any long pauses in the first piece of statistics. It obviously
>> should be able to run an old generation collection without a 60 s
>> To clarify, my question is "Why do I see the 60 s pauses now, when I
>> didn't see them a few days before."
>> As I said, we have applied the CMS now, but we still need to
>> understand what was going on, and unfortunately we couldn't make any
>> logging, because it is a production server that we can't experiment with.
> Without more information (i.e., logs) I for one cannot tell
> what's happening here. I understand that you cannot experiment
> in production but some of our customers always have GC logging
> on by default. We don't hear complaints about any performance
> impact (and have not seen one ourselves) so in the future you
> may want to consider turning on logging by default.
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