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From André Warnier>
Subject Re: AJP Errors. Apache + Tomcat
Date Wed, 19 Oct 2011 08:48:15 GMT

The problem can also be due just to the difference in startup time between Apache httpd 
and Tomcat.  At the time Apache httpd (and its embedded mod_proxy_ajp module) try to 
contact Tomcat, Tomcat has possibly not yet "opened" its Connector on port 8009, which 
causes the host to refuse a connection to that port.

In my experience anything involving Java tends to take a while to "start the machinery" 
(it is after all a "java virtual machine").
In the practice thus, what we always do in such configurations, is to start Tomcat first 
(which really means mostly "start the java virtual machine which runs Tomcat")
, wait a couple of seconds, and then start the Apache httpd part.

Joe Hansen wrote:
> I uninstalled Tomcat and installed a newer version (6.0.33) and the problem
> disappeared. It is strange because the config files are the same.
> On Wed, Oct 19, 2011 at 2:16 AM, <> wrote:
>> Hi
>>> I get the following AJP errors when I try to access a webpage after
>> ztarting
>>> Apache and Tomcat. Both Apache web server and Tomcat start up fine
>>> but I get these errors in Apache logs and I get a 503 Service
>>> Temporarily Unavailable message in the browser. Apparently Tomcat
>>> isn't seeing the request.
>>> [error] (OS 10061) No connection could be made because the target machine
>>> actively refused it.  : proxy: AJP: attempt to connect to
>>> failed
>>> [error] ap_proxy_connect_backend disabling worker for (localhost)
>>> [error] proxy: AJP: failed to make connection to backend: localhost
>>> Can you please help me find out where the problem lies.
>> Have you checked the port is listening? (netstat -an) and the firewall
>> permits the connection (telnet localhost 8009)
>> John
>> --
>> /(bb|[^b]{2})/
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