Re: Help with stack trace from frozen application
Re: Help with stack trace from frozen application
- Subject: Re: Help with stack trace from frozen application
- From: Marcos Trejo Munguia <email@hidden>
- Date: Fri, 11 Nov 2005 16:11:59 -0600
Thanks for your replies Chuck and Lindesay.
One last question Chuck, which one you'd recommend me the most,
MultiECLockManager or ERXEC?
On Nov 10, 2005, at 5:16 PM, Chuck Hill wrote:
On Nov 10, 2005, at 11:43 AM, Marcos Trejo Munguia wrote:
Hello Lindesay:
A) If you are creating your own editing contexts, are you locking and
unlocking them appropriately?
B) Are you manually locking a "default editing context" from the
session? (if so, why?)
C) Could you be running out of memory handling a request?
A) I'm using my own editing contexts, and I'm locking them in
WOComponent's awake method and unlocking them in WOComponent's sleep
method
That is a most excellent way to deadlock your application! I'd
strongly suggest using the MultiECLockManager from WOCode or ERXEC
from Project Wonder. Otherwise, you should expect your application to
freeze periodically.
B) I'm only use the default editing context to read never to write,
and I'm not locking this editing context.
That is fine.
C) I'm not sure, Do I have to see a java.lang.OutOfMemoryError to
know for sure that I'm running out of memory? If the answer is yes
then I'm not having this problem, if is not then how do I know that
I'm running out of memory?
No, you won't always see this message. Usually, but not always. When
you don't see it the app usually also freezes. :-)
Chuck
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