Hi Andre, Thanks for the response. Here are the details you wanted. As I mentioned before there are two tomcat nodes serving this app. Details for Tomcat Node 72: -------------------------------------------------------------------------- <Connector port="9480" maxHttpHeaderSize="8192" maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" /> <Connector port="9409" enableLookups="false" redirectPort="8443" protocol="AJP/1.3" /> <Engine name="Catalina" defaultHost="localhost" debug="0" jvmRoute="tomcat72"> --------------------------------------------------------------------------- Details for Tomcat Node 73: --------------------------------------------------------------------------- <Connector port="9580" maxHttpHeaderSize="8192" maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" /> <Connector port="9509" enableLookups="false" redirectPort="8443" protocol="AJP/1.3" /> <Engine name="Catalina" defaultHost="localhost" debug="0" jvmRoute="tomcat73"> --------------------------------------------------------------------------- I really appreciate the help. Thanks, Pradeep -----Original Message----- From: André Warnier [mailto:aw@xxxxxxxxxx] Sent: Tuesday, July 21, 2009 5:17 PM To: users@xxxxxxxxxxxxxxxx Subject: Re: proxy : AJP Errors Pradeep Phalgunan Kalliat wrote: > Hi All, > > I've two webapps CoW and CoWTraining, each of which are load balanced by Apache 2.2.4 over two tomcat nodes running as services. i.e. two nodes for CoW and two for the other. This is set up in one server machine. Both the webapps are identical in functionality and operation but just that they are served by different hosts. > > The problem is that when I try to access CoWTraining in the same window after I access CoW, the server throws a 'Service Temporarily Unavailable' message. However, if I access CoWTraining first and then CoW, there are no problems. Also in this case, if I go further and access CoWTraining again there are still no problems. The error occurs only if I try to access CoWTraining in a window in which I've accessed CoW. There are no problems trying to access other applications in the same window. > > The reason I think this is related to apache is because I had both these webapps installed on one tomcat node and tested without the load balancing. > > My httpd.conf file has the following references to these applications in the same sequence. > > -------------------------------------------------------------------------- > <Location /CoW> > ProxyPass balancer://cluster-CoW/CoW stickysession=JSESSIONID nofailover=On > ProxyPassReverse balancer://cluster-CoW/CoW > </Location> > > <Location /CoWTraining> > ProxyPass balancer://cluster-CoWTraining/CoWTraining stickysession=JSESSIONID nofailover=On > ProxyPassReverse balancer://cluster-CoWTraining/CoWTraining > </Location> > > > <Proxy balancer://cluster-CoW> > BalancerMember ajp://localhost:9209 route=tomcat70 retry=60 loadfactor=50 > BalancerMember ajp://localhost:9309 route=tomcat71 retry=60 loadfactor=50 > ProxySet lbmethod=bytraffic > </Proxy> > > <Proxy balancer://cluster-CoWTraining> > BalancerMember ajp://localhost:9409 route=tomcat72 retry=60 loadfactor=50 > BalancerMember ajp://localhost:9509 route=tomcat73 retry=60 loadfactor=50 > ProxySet lbmethod=bytraffic > </Proxy> > > RewriteEngine on > RewriteRule ^/CoW$ /CoW/ [R] > RewriteRule ^/CoWTraining$ /CoWTraining/ [R] > > -------------------------------------------------------------------------- > > There are no errors in the tomcat logs. The apache logs have a lot of these kind of errors > > -------------------------------------------------------------------------- > [error] (OS 10061)No connection could be made because the target machine actively refused it. : proxy: AJP: attempt to connect to 127.0.0.1:9509 (localhost) failed > [error] (OS 10061)No connection could be made because the target machine actively refused it. : proxy: AJP: attempt to connect to 127.0.0.1:9409 (localhost) failed > [error] ap_proxy_connect_backend disabling worker for (localhost) > [error] proxy: AJP: failed to make connection to backend: localhost > [error] proxy: BALANCER: (balancer://cluster-cowtraining). All workers are in error state for route (tomcat73) > -------------------------------------------------------------------------- > > Any help would be greatly appreciated. I've already done a lot of googling with not much results. > Hi. That is a very good problem description. Just to be complete, could you post also the content of the active corresponding <Connector> tags of your Tomcat servers ? (since they are apparently the side that refuses the connection). --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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