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From Mark Thomas <ma...@apache.org>
Subject Re: Tomcat6.0.18+Log entries upon shutting down TomCat
Date Tue, 23 Sep 2008 19:37:28 GMT
Choudhury@labware.com wrote:
> Guys,
>                As a load tester should I have to worry about the INFO 
> messages mentioned below in this thread 
They are INFO messages so it is reasonable to assume that they are for
information rather than anything to worry about.

> ....I am getting no clue as to where they creep from ?
Did you try Googling for "instance(s) to be deallocated"?

> Is it Tomcat problem or our application problem?
That the numbers are unrealistically high is a known Tomcat bug but not one
that will cause any real harm.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45608

You might have some long running requests hanging around which could be an
application issue but you'll need to use other means (eg thread dump) to
figure out if that is the case.

Mark


> Any insights ?
> Regards,
> 
> Subhrajyoti 
> Mobile: +919830079545
> Mail: choudhury@labware.com
> Web: www.labware.com
> 
> LabWare LIMS Solutions - Results Count
> 
> 
> 
> Heiko Klein <Heiko.Klein@met.no> 
> 09/23/2008 03:52 PM
> Please respond to
> "Tomcat Users List" <users@tomcat.apache.org>
> 
> 
> To
> Tomcat Users List <users@tomcat.apache.org>
> cc
> 
> Subject
> Re: Tomcat6.0.18+Log entries upon shutting down TomCat
> 
> 
> 
> 
> 
> 
> Hi Subhrajyoti,
> 
> I don't know an answer for your question, but I got exactly the same 
> problems after upgrading from Tomcat 6.0.14 to 6.0.18. This problem 
> happenend when using APR. After switching back to 6.0.14, my problem 
> disappeared. Are you using APR, too? I think this is worrisome for an 
> application, because my tomcat started to freeze completely after all 
> threads had been in this 'waiting for deallocation' state.
> 
> Best regards,
> 
> Heiko
> 
> Choudhury@labware.com wrote:
>> Hi All,
>>               My first question in this forum . I am load testing our 
>> webapp using Jmeter . The test was configured to simulate  50 
> simultaneous 
>> users . After running the test for about 18hours or so , I decided to 
>> shutdown Tomcat  and after executing shutdown.bat file , I got the 
>> following messages inside catalina.2008-09-23.log . At the time when I 
>> stopped Tomcat, Jmeter was showing as all the 50 threads up and running 
> .
>> My question :
>>
>> 1. What this line INFO: Waiting for 253,020 instance(s) to be 
> deallocated 
>> means ?
>> 2. Are these messages worrisome from the application point of view ?
>>  .
>>
>> Sep 23, 2008 1:53:38 PM org.apache.coyote.http11.Http11Protocol pause
>> INFO: Pausing Coyote HTTP/1.1 on http-8080
>> Sep 23, 2008 1:53:39 PM org.apache.catalina.core.StandardService stop
>> INFO: Stopping service Catalina
>> Sep 23, 2008 1:53:39 PM org.apache.catalina.core.StandardWrapper unload
>> INFO: Waiting for 253,020 instance(s) to be deallocated
>> Sep 23, 2008 1:53:40 PM org.apache.catalina.core.StandardWrapper unload
>> INFO: Waiting for 253,016 instance(s) to be deallocated
>> Sep 23, 2008 1:53:41 PM org.apache.catalina.core.StandardWrapper unload
>> INFO: Waiting for 253,015 instance(s) to be deallocated
>> Sep 23, 2008 1:53:41 PM org.apache.catalina.core.StandardWrapper unload
>> INFO: Waiting for 42 instance(s) to be deallocated
>> Sep 23, 2008 1:53:42 PM org.apache.catalina.core.StandardWrapper unload
>> INFO: Waiting for 42 instance(s) to be deallocated
>> Sep 23, 2008 1:53:43 PM org.apache.catalina.core.StandardWrapper unload
>> INFO: Waiting for 42 instance(s) to be deallocated
>> Sep 23, 2008 1:53:43 PM org.apache.catalina.core.StandardWrapper unload
>> INFO: Waiting for 7,570 instance(s) to be deallocated
>> Sep 23, 2008 1:53:44 PM org.apache.catalina.core.StandardWrapper unload
>> INFO: Waiting for 7,570 instance(s) to be deallocated
>> Sep 23, 2008 1:53:45 PM org.apache.catalina.core.StandardWrapper unload
>> INFO: Waiting for 7,570 instance(s) to be deallocated
>> Sep 23, 2008 1:53:53 PM org.apache.coyote.http11.Http11Protocol destroy
>> INFO: Stopping Coyote HTTP/1.1 on http-8080
>>
>>
>> Regards,
>>
>> Subhrajyoti 
>> Mobile: +919830079545
>> Mail: choudhury@labware.com
>> Web: www.labware.com
>>
>> LabWare LIMS Solutions - Results Count
> 
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