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From Andrew Purtell <apurt...@apache.org>
Subject Re: GC and High CPU
Date Tue, 17 May 2011 02:41:10 GMT
This is interesting because our "conventional wisdom" is those settings should increase the
chance of stop-the-world GC and should be avoided.

  - Andy
    (who always gets nervous when we start talking about GC black magic)

> From: Jack Levin <magnito@gmail.com>
> Subject: Re: GC and High CPU
> To: user@hbase.apache.org
> Date: Monday, May 16, 2011, 5:06 PM
>
> Those are the lines I added:
> 
> -XX:+CMSIncrementalMode \  <--------
> -XX:+CMSIncrementalPacing \ <-------
> -XX:-TraceClassUnloading <------
> 
> -Jack
> (used CMS before)
> 
> On Mon, May 16, 2011 at 4:19 PM, Stack <stack@duboce.net>
> wrote:
> > So, the change is that you started using CMS?  You
> > were using the default GC previous?
> >
> > ParNew is much bigger now.


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