kill -a <process_id_of_Tomcat>
Thanks,
RS
Asim Alp
<[EMAIL PROTECTED] To: "Tomcat Users List"
tworks.net> <[EMAIL PROTECTED]>
cc:
02/27/2004 04:21 PM Subject: Re: Tomcat heap vs.
java.exe
Please respond to
"Tomcat Users List"
How can I take a thread dump?
Asim Alp
Educational Networks
55 Broad Street, 10th Floor
New York, NY 10004
www.educationalnetworks.net
Tel: +1 (212) 269-0200
Fax: +1 (212) 269-1446
On Feb 27, 2004, at 5:16 PM, [EMAIL PROTECTED] wrote:
>
> OutOfMemory errors sometimes show up when the java vm runs low on
> memory.
> Since you have increased the heap size, could you take a thread dump
> to see
> if there are any CPU burning threads or any threads waiting on a
> resource?
>
> Thanks,
> RS
>
>
>
> Asim Alp
> <[EMAIL PROTECTED] To: "Tomcat
> Users List"
> tworks.net>
> <[EMAIL PROTECTED]>
> cc:
> 02/27/2004 04:14 PM Subject: Re:
> Tomcat heap vs. java.exe
> Please respond to
> "Tomcat Users List"
>
>
>
>
>
>
> Our sites have just went down for a couple of minutes. I solved the
> problem by restarting Tomcat. At the time of the crash, java.exe was
> about 345MB. I'm running tomcat with the -Xms128m -Xmx256m options.
> Our server has 1GB physical ram.
>
> On the Tomcat logs, it reads:
>
> 2004-02-27 16:58:55 ApplicationDispatcher[/jsp-apps] Servlet.service()
> for servlet jsp threw exception
> java.lang.OutOfMemoryError
>
> 2004-02-27 16:58:55 StandardWrapperValve[jsp]: Servlet.service() for
> servlet jsp threw exception
> java.lang.OutOfMemoryError
>
> Do you have any idea why this might have happened? Also, how can we
> avoid such problems in the future?
>
> Asim Alp
> Educational Networks
> 55 Broad Street, 10th Floor
> New York, NY 10004
> www.educationalnetworks.net
>
> Tel: +1 (212) 269-0200
> Fax: +1 (212) 269-1446
> On Feb 27, 2004, at 11:39 AM, Kannan Sundararajan wrote:
>
>> Yes, it goes along with subject called Garbage collection and tuning.
>> This
>> area is a huge, sometimes very quick to tune, and sometimes gives a
>> nightmare to tune those properties. The nature of this subject grows
>> based
>> on your application, servers and expectations from user end.
>>
>> -----Original Message-----
>> From: Asim Alp [mailto:[EMAIL PROTECTED]
>> Sent: Friday, February 27, 2004 11:25 AM
>> To: [EMAIL PROTECTED]
>> Subject: Tomcat heap vs. java.exe
>>
>>
>> I have a quick question. When I run Tomcat 5.0.18, my java.exe starts
>> with ~65MB. Then as my websites get hits, java.exe starts increasing.
>> I run tomcat with the -Xms128m -Xmx256m options. So the startup heap
>> size of tomcat is 128MB. After my first start, I usually have around
>> 80 MB free memory for Tomcat.
>>
>> My question is, why is the startup java.exe size is smaller than my
>> total heap size? Does the size of java.exe grow as the heap starts
>> being used. I would expect java.exe to be at least 128 MB (plus the
>> JVM memory) since that is how much is allocated.
>>
>> Thanks,
>>
>> Asim
>>
>>
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>
>
>
>
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