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From Amol Puglia <amolcpug...@yahoo.com>
Subject Re: Apache Process going high even after restart of backend server tomcat
Date Tue, 11 Jan 2011 13:58:17 GMT
Hello Andre,

When i posted same message to apache users list they said the apache process is going high
because there is a problem in backend server tomcat and asked me to collect thread dump and
post same in tomcat users list. so i posetd thread dump sanpshot in tomcat users list. It
seems tomcat is not releasing connection and this is the reason apache proces count is goind
high. I would like to know why tomcat is not releasing connection and wanted to figure out
whether ther is problem in tomcat or application deployed on tomcat. I have taken therad dump
and trying to analyze it but unable to understand what is causing problem by lloking at threads.
Let em know if i can attache thread dump here so that experts from the forums can help me
to understand thread dump.
 

--- On Tue, 1/11/11, André Warnier <aw@ice-sa.com> wrote:

From: André Warnier <aw@ice-sa.com>
Subject: Re: Apache Process going high even after restart of backend server tomcat
To: "Tomcat Users List" <users@tomcat.apache.org>
Date: Tuesday, January 11, 2011, 6:53 PM

Amol Puglia wrote:
> Hello Andre Warnier,
> 
> Thanks for the response. I am talking about apache web server whose process count is
increasiing to 259 and not coming down. I would like to know why process count is increasing
and not coming down. Please help me to toublleshoot this issue.Let em know in case you need
further information.
> 

I am extremely tempted to answer that if the problem is at the Apache httpd server level,
then it is not our problem on this list.  We deal only with Tomcat.

But someone else already answered that apparently.
So I'll make another effort.

To answer your question : we don't know.  There can be a million reasons.
Some of these reasons can have to do with the back-end Tomcat, but that is only a possibility.
It may have nothing to do with Tomcat at all.

One possibility is that there are just many user requests coming in to your Apache httpd server,
and it is not fast enough to handle the load.
So, in order to stay on this list, what makes you think that the problem has anything to do
with the back-end Tomcat ?



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