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Subject DO NOT REPLY [Bug 47368] New: Load test problem for Apache and Tomcat
Date Mon, 15 Jun 2009 08:40:37 GMT

           Summary: Load test problem for Apache and Tomcat
           Product: Apache httpd-2
           Version: 2.3-HEAD
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P1
         Component: All

We are trying to run a load test using borland Silk route on a application
running on Tomcat 5.0.16 on Apache we have configured 4 tomcats with
1 Apache using file. when we try to run 1000 concurrent users
doing transactions on the website the site stops responding after about 10 min.
on the server side we have observed that the cpu utilisation shoots upto 100%
for server process (Apache). the user cpu utilisation is not much. Then the
site hangs and the cpu become 100% idle. this is a very strange behaviour, we
observed that the max httpd connects was going upto 2050, so we increased the
maxclients to 3072 (earlier tried with 1024 & 2048). We have tried to increase
the RAM of the TOM cat from 1GB to 2GB each, but no significant difference in
the behaviour.

Server Dell 2950
OS REdHAT- 5.2

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