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From Martin Gainty <>
Subject RE: [OT] Re: jvm exits without trace
Date Mon, 22 Mar 2010 22:12:43 GMT


enable logging FileHandler and set level to finest e.g. 

Martin Gainty 
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> From:
> To:
> Subject: Re: [OT] Re: jvm exits without trace
> Date: Mon, 22 Mar 2010 14:33:54 -0500
> Dan,
> 6u18 did not work for us, crashed with the same regularity as 6u17. 
> However, 6u7 has been running for two weeks without a failure (the others 
> would fail between 15 minutes and 10 days runtime.)
> Thanks,
> Carl
> ----- Original Message ----- 
> From: "Dan Armbrust" <>
> To: "Tomcat Users List" <>
> Sent: Monday, March 22, 2010 1:17 PM
> Subject: Re: [OT] Re: jvm exits without trace
> On Tue, Mar 16, 2010 at 4:46 PM, Carl <> wrote:
> > My approach is to get something (a JVM) that works and then gradually 
> > change
> > until it breaks. Then, I know what is causing the problem. To date, I
> > haven't been able to get a JVM that works.
> >
> I have had a lot of issues finding stable JVMs since I moved our
> software from 1.5 to 1.6... 1.6 has been a mess for ages under our
> workload on CentOS.  Code that ran fine under 1.5 would segfault in
> all sorts of random places on 1.6.  I even tried the 1.7 openJDK early
> builds... they were even worse.
> I was pleased to see that the most recent release
> contains _tons_ of bug
> fixes, including lots of crash fixes.  Seriously... the last few
> releases have contained only a handful of fixes... this release has
> hundreds.
> I'm testing it now, and so far, it looks promising.  This may be the
> first 1.6 release that I've found that doesn't crash with my workload.
> Unfortunately, I've never been able to pin down a sequence of events
> that would cause the crash on demand, so its hard for me to verify
> that things are finally fixed, other than doing long term load testing
> and waiting for the crashes to (hopefully) not happen.
> Dan
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