For me I'm not talking about heavy load at all, just a test with JMeter at 20 threads against this apache 2.0.43/tomcat 4.1.12 will cause problems to start occuring. A similar application I have running on linux with apache 1.3.somthing and tomcat 3.2.4 has no problems under much heavier loads.
Randy Paries wrote:
The one question I have, is does the connections ever close again.
I have peak times where I will have 60-80 connections open.
But they never close again
Randy
-----Original Message-----
From: Jason Koeninger [mailto:[EMAIL PROTECTED]] Sent: Wednesday, December 18, 2002 12:09 PM
To: Tomcat Users List
Subject: RE: mod_jk leaves connections open?
Someone correct me if I'm wrong, but mod_jk using the ajp13 and later
protocols is supposed to leave connections open. One of the reasons behind the
change from ajp12 to ajp13 was to get away from opening a connection to Tomcat
for every servlet/jsp served by Tomcat.
If you're having trouble with lockups at a certain number of
connections, you probably need to tune the Tomcat thread pool (server.xml), Apache/IIS, and/or the
underlying operating system. Keep in mind that resources can be quickly exhausted
when running IIS/Apache + mod_jk + Tomcat + your application + database + etc. all on
one machine.
Best Regards,
Jason Koeninger
J&J Computer Consulting
http://www.jjcc.com
On Wed, 18 Dec 2002 10:11:08 -0800, Tuan H. Le wrote:
We are experiencing this open connection issue in our environment. Though, we are using IIS redirector (isapi_redirector2.dll) with Tomcat
4.1.12. Tomcat hang when the current connection at around 250. We have to restart IIS or Tomcat every time this problem occurs to release the connections.Has anyone found a solution to this issue? Thanks, Tuan -----Original Message----- From: Simon Chatfield [mailto:[EMAIL PROTECTED]] Sent: Wednesday, December 18, 2002 9:47 AM To: Tomcat Users List Subject: mod_jk leaves connections open? Hi everyone, I hope mod_jk questions should be directed to this list, Icouldn't find any more suitable.
I've been using tomcat and versions of mod_jk for a while now with success. I've got a problem with useing mod_jk-2.0.43.so with apache 2.0.43 and everything seems to work OK for a while. Eventually all request get denied and the mod_jk can't appear to get a connection complaining that tomcat is down or on another port.
After a restart of apache (not tomcat) everything will start working again. In digging into the problem, I see that there are hundreds of open connections to the mod_jk port 8009 left open and extablished. Can
anyone point me in the right direction on how to solve this problem? Thanks!
specifics
Solaris 8
Java 1.4
Tomcat 4.1.12 (binary form)
Apache 2.0.43 (built from source)
mod_jk-2.0.43.so (binary form)
-Simon
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Simon Chatfield
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