if you are already using mod_proxy, why use AJP, mod_proxy in particular, has a more solid implementation in HTTP than AJP

Filip

Mirko Viviani wrote:
Hi,

We are using Tomcat 5.5.20 with Apache 2.2.3/ssl/svn and jdk 1.6.0-b105 on a
Windows Server 2003 R2/SP1 SE with 4 Xeon cores and 4GB ram.

I have configured apache with a virtual host and the ProxyPass directive to
redirect all the requests to the Tomcat instance, as in this example:

<VirtualHost 192.168.1.22:80 <http://192.168.1.22/>>
   ServerName test.ourdomain
   ServerAdmin mymail

   ErrorLog logs/test-error.log
   CustomLog logs/test-access.log common

   <Location />
      ProxyPass ajp://test.localhost:8009/
   </Location>
</VirtualHost>

The same binaries and configurations work like a charm on a Win 2000 Pro/SP4
single processor test machine, with the only difference that the virtual
host is bound to * instead to a real ip address.

On the Win2003 server, after the first requests, the tomcat5 process starts eating 100% cpu on one core and saturate all the cpus after some requests.

After that the APJ13 link starts loosing bytes requiring a service restart.
An Apache restart releases the resources of the tomcat5 process.

Using a Redirect directive to the tomcat 8080 port instead of a ProxyPass
work correctly but it isn't the desired solution.

There are not antivirus or firewall/packet filter on the machines.

Any hints?
Thank you.

Mirko

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