Re: [J1 LEAKS ?] RE: jetspeed process and memory leak

[Jun Yang]

During the development of one of the many portals inside Cisco that are 
powered by Jetspeed, we discovered resource leaks in the database PSML 
manager.  So we wrote our own.  Now that portal has been in production 
for 3 months and we have not had resources leaks any more.  Although we 
tried hard to denote the new implementation of database PSML manager 
back to Jetspeed, the fact that it has too many internal dependencies 
and it only works for Oracle prevented us from doing so.

Jun

Pernoud Aurelien wrote:

Paul Mansfield a �crit :
 

typically, I tried a random variation of my searches on google and
came up with an answer:
http://www.mail-archive.com/[EMAIL PROTECTED]/msg111708.html 

these suggest that tomcat itself causes memory leaks, and is
exacerbated by jetspeed's leaks.
   

I've just read this mail and see this :

 

From: William Connor 
Subject: Re: Tomcat 4.0.x memory leak (not javac) 
Date: Wed, 03 Dec 2003 09:09:37 -0800 

We first ran into this bug when hot-deploying JetSpeed - about seven
times would cause an out of memory w/ the default heap size.
JetSpeed had so many leaks itself that we dropped down to bares bones
test app with a servlet, but no JSPs or third party libraries.
   

Jetspeed has so many leaks ???
We've made some tests over here for potential leak and didn't find anything alarming.
The only stuff that was potentially leaking was the Tool object from velocity, staying 
in memory even after a request is done, we didn't really understand how to use it so 
we plan not to use it anymore.
Did anyone ever really meet those memory leak, or is it more the portlets developped by a end-user that could leak... ?

That's just cause I was a little afraid of those lines, but already seen so many people yelling at opensource projects saying it was leaking where it wasn't that I'd like any end-user real experience.

Tell me someone already had a jetspeed portal running for a long time ??? :)

Aurelien

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