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From Paul Pak <p...@yellowseo.com>
Subject Re: Nodes frozen in GC
Date Mon, 07 Mar 2011 22:33:47 GMT
Hi Ruslan,

It looks like Jonathan and Stu have already been working to reduce
garbage collection on v.8  The ticket is at
https://issues.apache.org/jira/browse/CASSANDRA-2252

Jonathan, is there any way to apply the patch to .73 and have ruslan
test it to see if it fixes his issue with Garbage collection?  Given the
fact that he's already got a test case, it seems like a reasonable thing
to do (with the caveat that he is a guinea pig for new code which may
not be fully tested yet :) .

Paul

On 3/7/2011 4:50 PM, ruslan usifov wrote:
>
>
> 2011/3/8 Jonathan Ellis <jbellis@gmail.com <mailto:jbellis@gmail.com>>
>
>     It sounds like you're complaining that the JVM sometimes does
>     stop-the-world GC.
>
>     You can mitigate this but not (for most workloads) eliminate it with
>     GC option tuning.  That's simply the state of the art for Java garbage
>     collection right now.
>
>
> Hm, but what to do in this cases?? In these moments throughput of
> cluster degrade, and I misunderstand what workaround I must do to
> prevent this situations?


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