Hello All,
Recently we have deployed our project to wicket project to production
server.
And start getting OutOfMemory PermGenSpace.
I believe we have memory leak in our application
maybe there is best practices how to deal with Models and JPA entities to
resolve this?
Thanks in advance
--
...@gmail.com]
Sent: Thursday, February 06, 2014 1:09 PM
To: users@wicket.apache.org
Subject: Memory leaks best practices
Hello All,
Recently we have deployed our project to wicket project to production server.
And start getting OutOfMemory PermGenSpace.
I believe we have memory leak in our
Probably a class-loading issue:
http://stackoverflow.com/questions/88235/dealing-with-java-lang-outofmemoryerror-permgen-space-error
Sven
On 02/06/2014 01:07 PM, Maxim Solodovnik wrote:
Hello All,
Recently we have deployed our project to wicket project to production
server.
And start getting
Hi,
OOM in PermGen is not what you ask for.
If you leak normal memory than the error would be with heap space.
PermGen memory is used to keep the Class instances and interned Strings.
If you deploy your app for first time then most probably you just need to
set the proper initial and max value :
Thanks a lot for quick answers have already added -Xms512M -Xmx2G -Xss1M
-XX:PermSize=192m -XX:MaxPermSize=512m -XX:+CMSClassUnloadingEnabled
Now will add *Model.detach(); to the code and will check the stability
(currently application works ~2days before PermGen)
Redeployment is performed using
I had the same issue, my problem was doesn't close the database connection!
On Thu, Feb 6, 2014 at 8:54 PM, Maxim Solodovnik solomax...@gmail.comwrote:
Thanks a lot for quick answers have already added -Xms512M -Xmx2G -Xss1M
-XX:PermSize=192m -XX:MaxPermSize=512m -XX:+CMSClassUnloadingEnabled
In my case OpenJPA handle DB connection open/close/pooling, so I hope this
is not the case.
Maybe you can suggest server side memory profiler for Ubuntu server?
On Thu, Feb 6, 2014 at 9:12 PM, Shengche Hsiao shengchehs...@gmail.comwrote:
I had the same issue, my problem was doesn't close the
The best memory profiler is Eclipse MAT - https://www.eclipse.org/mat/
But again it helps only with debugging problems in the heap, not in the
perm gen
Martin Grigorov
Wicket Training and Consulting
On Thu, Feb 6, 2014 at 3:18 PM, Maxim Solodovnik solomax...@gmail.comwrote:
In my case OpenJPA
http://www.yourkit.com/docs/kb/class_loaders.jsp
François
On Thu, Feb 6, 2014 at 3:22 PM, Martin Grigorov mgrigo...@apache.orgwrote:
The best memory profiler is Eclipse MAT - https://www.eclipse.org/mat/
But again it helps only with debugging problems in the heap, not in the
perm gen
