OutOfMemoryError happening in embedded instance of Tomcat 6 (Apache OFBiz project)

[Jacopo Cappellato-3]

Hi all,

I am one of the committers and PMC member of the Apache OFBiz project  
(ofbiz.apache.org).
Our project is using an embedded instance of Tomcat to run the web  
applications that compose the OFBiz suite of ERP applications.

A few weeks ago, with rev. 659490, we have upgraded Tomcat from to  
5.5.23 to 6.0.16.
Since then, we have noticed in some production server some  
"OutOfMemoryError: Java heap space" exceptions that make the instances  
pretty unstable after some time they are up.
My suspect is that we are not creating the Tomcat instance in the  
right way, but I am not sure where is the error... and I'm not sure  
about the question I should ask here.
However, maybe someone of you could help with some advices or hints.

This is the code we used to create the instance of Tomcat 5.5.23 (that  
was working fine):

http://svn.apache.org/viewvc/ofbiz/trunk/framework/catalina/src/org/ofbiz/catalina/container/CatalinaContainer.java?revision=585848&view=markup

and this is the new code for 6.0.16:

http://svn.apache.org/viewvc/ofbiz/trunk/framework/catalina/src/org/ofbiz/catalina/container/CatalinaContainer.java?view=markup

Thanks so much,

Jacopo



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[Filip Hanik - Dev Lists]

just use the -XX:+HeapDumpOnOutOfMemoryError and see what is causing the
OOME

Filip

Jacopo Cappellato wrote:

> Hi all,
>
> I am one of the committers and PMC member of the Apache OFBiz project
> (ofbiz.apache.org).
> Our project is using an embedded instance of Tomcat to run the web
> applications that compose the OFBiz suite of ERP applications.
>
> A few weeks ago, with rev. 659490, we have upgraded Tomcat from to
> 5.5.23 to 6.0.16.
> Since then, we have noticed in some production server some
> "OutOfMemoryError: Java heap space" exceptions that make the instances
> pretty unstable after some time they are up.
> My suspect is that we are not creating the Tomcat instance in the
> right way, but I am not sure where is the error... and I'm not sure
> about the question I should ask here.
> However, maybe someone of you could help with some advices or hints.
>
> This is the code we used to create the instance of Tomcat 5.5.23 (that
> was working fine):
>
> http://svn.apache.org/viewvc/ofbiz/trunk/framework/catalina/src/org/ofbiz/catalina/container/CatalinaContainer.java?revision=585848&view=markup 
>
>
> and this is the new code for 6.0.16:
>
> http://svn.apache.org/viewvc/ofbiz/trunk/framework/catalina/src/org/ofbiz/catalina/container/CatalinaContainer.java?view=markup 
>
>
> Thanks so much,
>
> Jacopo
>
>
>
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> To start a new topic, e-mail: users@...
> To unsubscribe, e-mail: users-unsubscribe@...
> For additional commands, e-mail: users-help@...
>
>

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[Jacopo Cappellato-3]

Filip,

thank you for your help.
Your suggestion actually helped to identify the root of our issues: it  
was not related to Tomcat 6 but instead it was an issue in the version  
of DBCP we were using (a snapshot of November 2007); we have upgraded  
it to the HEAD and the errors seem gone away (we are running some load  
testing sessions right now).

Thanks so much and sorry for the off-topic.

Jacopo


On Jul 7, 2008, at 6:03 PM, Filip Hanik - Dev Lists wrote:

> just use the -XX:+HeapDumpOnOutOfMemoryError and see what is causing  
> the OOME
>
> Filip
>
> Jacopo Cappellato wrote:
>> Hi all,
>>
>> I am one of the committers and PMC member of the Apache OFBiz  
>> project (ofbiz.apache.org).
>> Our project is using an embedded instance of Tomcat to run the web  
>> applications that compose the OFBiz suite of ERP applications.
>>
>> A few weeks ago, with rev. 659490, we have upgraded Tomcat from to  
>> 5.5.23 to 6.0.16.
>> Since then, we have noticed in some production server some  
>> "OutOfMemoryError: Java heap space" exceptions that make the  
>> instances pretty unstable after some time they are up.
>> My suspect is that we are not creating the Tomcat instance in the  
>> right way, but I am not sure where is the error... and I'm not sure  
>> about the question I should ask here.
>> However, maybe someone of you could help with some advices or hints.
>>
>> This is the code we used to create the instance of Tomcat 5.5.23  
>> (that was working fine):
>>
>> http://svn.apache.org/viewvc/ofbiz/trunk/framework/catalina/src/org/ofbiz/catalina/container/CatalinaContainer.java?revision=585848&view=markup
>>
>> and this is the new code for 6.0.16:
>>
>> http://svn.apache.org/viewvc/ofbiz/trunk/framework/catalina/src/org/ofbiz/catalina/container/CatalinaContainer.java?view=markup
>>
>> Thanks so much,
>>
>> Jacopo
>>
>>
>>
>> ---------------------------------------------------------------------
>> To start a new topic, e-mail: users@...
>> To unsubscribe, e-mail: users-unsubscribe@...
>> For additional commands, e-mail: users-help@...
>>
>>
>
>
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