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From Zoran Avtarovski <zo...@sparecreative.com>
Subject Re: Help in diagnosing server unresponsiveness
Date Sun, 03 Feb 2013 03:58:37 GMT
Thanks for the reply Chris,

The crash is more a hang than a crash as we don't get OOME. The app just
stops responding and the monitoring data shows spikes in memory and CPU to
100% and then nothing. I can't find anything in the linux system logs or
in the tomcat or java logs.

My hope is that once I can work out what's happening I can then fix the
cause, but at the moment I'm flying blind on this.

Z.



On 2/02/13 6:08 AM, "Christopher Schultz" <chris@christopherschultz.net>
wrote:

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>Zoran,
>
>On 1/31/13 8:36 PM, Zoran Avtarovski wrote:
>> We have a application running on the latest Tomcat7 and we are
>> getting a server crash or becoming unresponsive. This occur every
>> few days at no fixed intervals or time of day and they certainly
>> don't correlate to any app function ­ at least not according to the
>> logs.
>
>Can you describe the "crash" in more detail? OOME? IF so, what kind
>(heap or PermGen)? Lock-up (deadlock, etc)? Actual JVM crash (produces
>a core dump or native stack dump)?
>
>- -chris
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