Hi Aditya,
there is product of Borland OptimizeitT Suite 5 which makes performance
management for JavaT easier .It dramatically improvs application performance
and supporting the development of fast, scalable, and reliable applications.
Optimizeit Suite offers another innovative first: the Automatic Memory Leak
Detector (AMLD), which enables teams who are brand new to Java to
immediately solve memory leaks. Optimizeit Suite integrates with popular
application servers and
you can also find solution in cofiguration on this link which specially
designed for site maintaining onn tomcat and also deals with memory leak
problem
http://www.cs.bris.ac.uk/Teaching/Resources/General/web/tomcat.html
i think it can help you
best of luck
-----Original Message-----
From: news [mailto:[EMAIL PROTECTED]]On Behalf Of Aditya
Sent: Friday, February 14, 2003 10:38 AM
To: [EMAIL PROTECTED]
Subject: tracking memory usage over time
I have the following JSP that I hit every 5 minutes and stuff the
returned values into a RRD (www.rrdtool.org) to measure the memory
(heap I presume) consumption of Tomcat over time. Is there a "better"
way, short of using JMX in the newer Tomcat builds, of doing this?
<%@ page language="java" %>
<%@ page session="false" %>
<%
long free = java.lang.Runtime.getRuntime().freeMemory();
long total = java.lang.Runtime.getRuntime().totalMemory();
out.print(free + "|" + total + "|");
%>
I can see a clear leak (about 20 contexts with a dozen or so hit
constantly and recompiling JSPs very often) which necessitates (-Xmx
and -Xms set to 256 MB) a restart of Tomcat every 4 days or so (with
4.1.14). I just upgraded to 4.1.20 thinking that the constant
compiling was the source of the leak and that doesn't seem to have
made a difference. Running 4.1.14 under jprobe doesn't evidence any
leaks in our JSPs/filters.
Hints on how to trace this leak down would be most welcome.
Thanks,
Adi
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