Thanks Andrew & Chris
Currently testing in 6.0.14 and the memory usage seems a lot more stable 
(probably a placebo affect). In 6.0.16 both the young/old generation heap usage 
would increase to 99.xx% and stay there, now both the eden and old heaps are 
increasing and decreasing.
Though the java console lost its connection and refuses to reconnect, but 
Tomcat is still serving requests and jmap returns values. I'll put that down to 
a bug in either jconsole or running it on the local machine (never a good idea 
I know!).


> Do you use sessions? How long is your session timeout? How much stuff do you 
> put into the session? How about any other caches in your application? 
> >ThreadLocals?
>I doubt that the BrokenPipeException is the cause of the memory problems, but 
>it's possible that it's a symptom of a server that is struggling to serve 
>>requests with low memory. I've seen JVMs thrash a bit when under low memory 
>conditions, but they usually suffer from OOMEs shortly after that.
> -chris

The sessions would contain a document of anything from 50k to 500k with the 
default timeout.
Would it be worth reducing the session timeout? Our app just annotates and 
returns documents that another server has sent to it. Which rarely takes more 
than a few seconds each and no more than 2 at a time.

Cheers
James




-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andrew Savory
Sent: 28 May 2008 10:56
To: Tomcat Users List
Subject: Re: Broken pipe errors

Hi James,

2008/5/22 James Law <[EMAIL PROTECTED]>:
> Can anyone help with the below error? We have just changed from a FC8
> box with the default install (Test Box) to a FC8 box with a more
> stripped down install (both the same machines)
>
> With the stripped down install we now get the following error, the only
> difference's between the two was the test box was setup to use the AJP
> connector attached to a Apache server. And the slimmed down is stand
> alone, both using Sun's JDK6 with Tomcat 6.0.16.

Try using Tomcat 6.0.14 and see if the problem persists. If you're
doing POSTs you may be falling foul of the following issue:
https://issues.apache.org/bugzilla/show_bug.cgi?id=44494


Andrew.
--
[EMAIL PROTECTED] / [EMAIL PROTECTED]
http://www.andrewsavory.com/

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