Re: huge memory amount bound by sleeping standard tags

Tomcat 5.0.27

Does it have a big impact on performance?




Kris Schneider schrieb:
> thomas rimmele-nguyen wrote:
>> Hy,
>>
>> I was searching a memory leak in our application. A profiler told me 
>> that  there are standard tags (probably sleeping in a pool) that are 
>> holding the references to our objects.  Especially the items-variable 
>> in the forEach-tag seems to be very greedy in our application.
>>
>> When I modified the standard-tag code (call a Tag.release() within 
>> every TryCatchFinally.doFinally()), our objects were 
>> garbage-collected as desired.
>>
>> The javadoc of javax.servlet.jsp..Tag tells, that the call of 
>> release() is NOT guaranteed for every usage of a Tag. So everything 
>> seems to be ok, no bug.
>>
>> But does anybody have good advice how I could reduce the amount of 
>> bound memory?
>
> One option would be to disable tag pooling. Which app server are you 
> using?
>
>> Greetings,
>>
>> Thomas
>