4:48:47 AM
Subject: Re: Optimizing Tomcat with Http11NioProtocol?
nodje wrote:
> thanks again Brian.
>
> one last question about monitoring, have you bean able to use Hyperic HQ on
> your production environment without significant performance reduction?
>
> We have identified
nd it works great. Check it out at http://www.hyperic.com We use
>> this tool to monitor heap usage and thread usage over time, so that we can
>> tell if we are hitting our upper limits on either of these constraints.
>>
>> Brian
>>
>>
>>
>>
>>
://www.hyperic.com We use
> this tool to monitor heap usage and thread usage over time, so that we can
> tell if we are hitting our upper limits on either of these constraints.
>
> Brian
>
>
>
>
> ________
> From: nodje
> To: users@tomca
ither of these constraints.
Brian
From: nodje
To: users@tomcat.apache.org
Sent: Monday, December 29, 2008 9:10:05 PM
Subject: Re: Optimizing Tomcat with Http11NioProtocol?
Hi, thanks all for your answers.
I have jconsole in place. I can monitor Tomcat and
Hi, thanks all for your answers.
I have jconsole in place. I can monitor Tomcat and general JVM information.
The think is it's not easy to understand statistics.
- How much I am using of Xmx is definitely something I want to know
- how many thread are used in peak times is also something I need
Try using jconsole.exe (it is part of the Sun JDK) to review memory and thread
usage of your JVM. That should help you narrow down where the issue is. One key
thing to look at with Jconsole is the heap memory used figure. You are setting
your -Xmx, but how much of it are you actually using? Heap
Hi Nodje,
first, the post from Yassine contains some very valuable information.
To me, it looks as if you're fishing in blur waters, since you've got
no idea what might be the bottleneck.
Maybe some additional hints:
- If you're serving quite some of statical content, the Apache
Portable Runtim
my suggestion would be to make sure if the delay is coming from the connector or
somewhere else, you could use some monitoring tools jmeter
[http://jakarta.apache.org/jmeter/],
moskito [http://moskito.anotheria.net/] or just write your own filter
which logs the number of active session,
the averag
