Peter
last year we targeted IBMWebsphere war files but experienced deployment
anomalies
when dual deploying first to IBM-Websphere6 and then to Tomcat6. We noticed
IBM-Websphere Server pegging stack/heap after just one webapp was deployed
we experienced no resource limitations when redeploying standalone to just
Tomcat6 (as evidenced by log/output from jheap, jstack and jconsole and top)
does IBMwebsphere have <any> resource limitations that can be overcome by
porting standalone wars to Tomcat 6.0.6?
my apologies on interrupting thread or any miscommunication carried within
Martin Gainty
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> Date: Fri, 30 Oct 2009 11:28:34 +0000
> Subject: Re: tomcat utilization is 100 %
> From: peter.crowt...@melandra.com
> To: users@tomcat.apache.org
>
> 2009/10/30 Vikram S Chauhan <vikram.chau...@in.ibm.com>:
> > I am Vikram Chauhan from New Delhi India and working for one telecom
> > client. i have installed tomcat 6.6 on my one Application server having
> > windows 2003 server environment. from last some days its utilization is
> > going 90% or 95% . due to this lots of problem are coming . some
> > application are impacting due to low resources of windows memory.
>
> (There is no Tomcat 6.6. Do you mean Tomcat 6.0.6?)
>
> The most likely reason is a problem within your own application. Take
> a thread dump (the method for doing this varies depending on which
> Java version you're running, but "jstack" will work with a reasonably
> modern JVM). You'll find the output in one of the Tomcat log files,
> unless your application is doing something very odd with the logging.
> Then ask look at what the running threads are doing - I suspect you'll
> fairly rapidly find the problem.
>
> Also, check your Java configuration. If other applications are
> running out of memory, you have given Java too much memory or
> resources other than the Java heap are taking lots of memory. For
> example, does your application open large numbers of sockets or files
> but never close them properly?
>
> - Peter
>
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