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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 9384] New: - Tomcat hangs after out of memory error
Date Fri, 24 May 2002 12:58:01 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=9384

Tomcat hangs after out of memory error

           Summary: Tomcat hangs after out of memory error
           Product: Tomcat 3
           Version: 3.2.1 Final
          Platform: PC
        OS/Version: Other
            Status: NEW
          Severity: Blocker
          Priority: Other
         Component: Unknown
        AssignedTo: tomcat-dev@jakarta.apache.org
        ReportedBy: d.deridder@customerdialogue.com


Hi,

We are using FOP (version 0.20.3 from Apache) to generate reports (+/- 15 
pages) in our web application. Sometimes this results in an out of memory error 
when doing a 10 user stress test. Whenever this happens, tomcat seems to hang 
(no responses anymore to any of the 10 clients).

Is this a known problem that Tomcat stops responding after an out of memory? Is 
FOP or XSLT or the combination of both possibly causing the problem?

More detailed description of the situation:

I use Xalan (version 2.2.D14) to convert an XML file to FO (XSLT file is 
including some calls to java classes to generate gif files with charts). After 
generating the FO file and gif files, the FOP processor transforms it to PDF. 
Both XSLT and FOP are very memory consuming and after a few hours of stress 
testing (a few hundreds of generated reports) we get an out of memory error 
signaled in the tomcat box and tomcat stops responding to all 10 clients. The 
max. heap size of the Java VM (Sun JDK1.3) is set to 256Mb. We are working on 
Windows 2000 prof. 

Can anyone help me with this problem?

Regards,

Dominique De Ridder

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