add -XX:+HeapDumpOnOutOfMemoryError to your JAVA_OPTS, then you can zip
up the file that gets generated, make it available to us and I'll take a
look at it
Filip
acec acec wrote:
Hi,
I tested tomcat 6.0.10 using jmeter. I found the
following problem.
I defined three thread groups:
============================First
thread-group============================
thread Properties:
Number of Threads(users): 50
Ramp-Up Period(in seconds): 10
Loop Count: 1000
HTTP Request
path: /examples/servlets/servlet/HelloWorldExample
Constant Timer
Thread Delay (in milliseconds): 10
============================Second
thread-group============================
thread Properties:
Number of Threads(users): 50
Ramp-Up Period(in seconds): 10
Loop Count: 1000
HTTP Request
path: /examples/jsp/tagplugin/foreach.jsp
Constant Timer
Thread Delay (in milliseconds): 10
============================Third
thread-group============================
thread Properties:
Number of Threads(users): 1
Ramp-Up Period(in seconds): 1
Loop Count: 1000
HTTP Request
path: /manager/status
Send parameter with request: XML(Name) true(Value)
Constant Timer
Thread Delay (in milliseconds): 1000
===========================================================================
I found tomcat 6.0.10 will use 100% CPU in a few
minutes, then I stop sending http request in jmeter.
After that, I accessed another jsp page:
/examples/jsp/jsp2/el/basic-arithmetic.jsp in web
browser , but tomcat gave me the following response:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error
() that prevented it from fulfilling this request.
exception
javax.servlet.ServletException:
java.lang.OutOfMemoryError: Java heap space
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:274)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause
java.lang.OutOfMemoryError: Java heap space
note The full stack trace of the root cause is
available in the Apache Tomcat/6.0.10 logs.
I installed Tomcat 5.5.20 and did the same testing, I
could not produce this problem on tomcat 5.5.20.
Thanks.
Arden
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