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Date: Mon, 21 Dec 2009 21:36:07 -0800 (PST)
From: DOrlov <dorlov@redaril.com>
To: users@tomcat.apache.org
Subject: TomCat 6 performance issues
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Hello.
I have TomCat server on production and have from 80 up to 400 requests per
second.

In server.xml I have next connector description:

 <Connector port="80"
               maxThreads="200"
               acceptCount="100"
               minSpareThreads="5"
               maxSpareThreads="75"
               enableLookups="false"
               disableUploadTimeout="true"
               connectionTimeout="1500"
               keepAliveTimeout="0"
               maxKeepAliveRequests="1"
               />

For application spesific we don't need to support keep alive and don't need
to wait for huge requests.
Main task is to serve responses as fast as we can.

~Time for request processing on server (I use tomcat log figures and own
time counters for checking) is 1 ms.

PROBLEM now:
Most part of time server works fine and ~ time for request/response 300 ms
(for external users via browser)

BUT time to time request/response time is upto 5 seconds for the same users.
How I could figure out a problem? How could I check if it is Tomcat server
problem or not?

You are very welcome with comments.

Thanks,
Denis.


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