> From: Charles Richard [mailto:charle...@thelearningbar.com] 
> Subject: Re: Tomcat thread dump analysis

> Top-posting is a post after another one I'm assuming?

No, it's doing what you keep on doing - posting the response before the query 
it applies to (you could have looked it up).  It's obnoxious and makes it 
harder for people to follow the conversation.

> Here is a full thread dump

Which again shows no Tomcat involvement in the locking hang.  It would appear 
that logic in your application threads has either created a deadlock, or failed 
to unlock something before returning, or something else entirely (e.g, broken 
network causing grief with Terracotta's distributed caching).  If it's a 
deadlock, you need to examine the entire thread dump (all threads) and look for 
a call stack that isn't like the others but holds the lock everyone else is 
waiting for.  If it's simply a failure to unlock somewhere, you will likely 
have to do a thorough code review to find it.  You will most likely need 
Terracotta's help here, since it's their code waiting on the lock.

 - Chuck


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