What is in apache log file, any proxy errors? I would do some extra logging if i was you as given in the below link:
http://httpd.apache.org/docs/2.2/mod/mod_proxy_balancer.html#stickyness_troubleshooting On Mar 14, 2012 8:28 PM, "Kashif Rahman" <kashif.rah...@vopium.com> wrote: > Yes I have that same in server.xml on both tomcats.**** > > ** ** > > Thank you,**** > > ** ** > > Best Regards,**** > > Kashif Rahman**** > > ** ** > > *From:* Igor Cicimov [mailto:icici...@gmail.com] > *Sent:* Wednesday, March 14, 2012 2:21 PM > *To:* users@httpd.apache.org > *Subject:* RE: [users@httpd] Apache + Tomcat Load Balancing**** > > ** ** > > Does the route parameters in the apache balancer tomcat1 and tomcat2 match > the jvmRoute value in the tomcat connectors?**** > > On Mar 12, 2012 9:19 PM, "Kashif Rahman" <kashif.rah...@vopium.com> wrote: > **** > > Here what I have used :**** > > **** > > ==================**** > > **** > > ProxyRequests Off**** > > <Proxy *>**** > > AddDefaultCharset Off**** > > Order deny,allow**** > > Allow from all**** > > </Proxy>**** > > ProxyPass /balancer-manager !**** > > ProxyPass /examples balancer://qawebcluster/examples**** > > ProxyPassReverse /examples balancer://qawebcluster/examples**** > > ProxyPass /kashif/admin ajp://x.x.x.x:18009/kashif/admin**** > > ProxyPassReverse /kashif/admin ajp://x.x.x.x:18009/kashif/admin*** > * > > **** > > #ProxyPass /kashif balancer://qawebcluster/kashif > stickysession=JSESSIONID|jsessionid**** > > #ProxyPassReverse /kashif balancer://qawebcluster/kashif > stickysession=JSESSIONID|jsessionid**** > > ProxyPass /kashif balancer://qawebcluster/kashif**** > > ProxyPassReverse /kashif balancer://qawebcluster/kashif**** > > ProxyPass /k balancer://qawebcluster/k > stickysession=JSESSIONID|jsessionid**** > > ProxyPassReverse /k balancer://qawebcluster/k > stickysession=JSESSIONID|jsessionid**** > > <Proxy balancer://qawebcluster>**** > > BalancerMember ajp://127.0.0.1:8009 route=tomcat1 > disablereuse=On**** > > BalancerMember ajp://x.x.x.x:8009 route=tomcat2 disablereuse=On* > *** > > ProxySet lbmethod=byrequests**** > > </Proxy>**** > > **** > > ProxyPreserveHost Off**** > > ProxyStatus On**** > > **** > > ==================**** > > We have this config on WEB1 as WEB2 both. 3 machines involved. 1 Apache > only for load balancing and 2 machines as WEB1 and WEB2 having Apache and > tomcat on each.**** > > **** > > We are using mod_proxy_ajp**** > > **** > > Tomcat is clustered. Session replication works, if single Apache is > handling 2 tomcat instances. When we start second Apache, tomcat session > replication stops. We want to have failover for PHP side too. **** > > **** > > Thank you,**** > > **** > > Regards,**** > > Kashif Rahman.**** > > **** > > *From:* Igor Cicimov [mailto:icici...@gmail.com] > *Sent:* Monday, March 12, 2012 2:12 PM > *To:* users@httpd.apache.org > *Subject:* RE: [users@httpd] Apache + Tomcat Load Balancing**** > > **** > > You can at least tell us what OS are these servers running on? Also you > said when you put second apache something is not working so we would like > to see your apache config if you dont mind. Another thing not clear to me > is tomcat session replication. Are the tomcats clustered? If not how do > they replicate the sessions between each other? > In meantime check mod_proxy_balancer documentation as possible solution. > You can find lots of examples with sticky sessions configuration fot this > module for tomcat backends.**** > > On Mar 12, 2012 6:19 PM, "Kashif Rahman" <kashif.rah...@vopium.com> wrote: > **** > > Thanks Anam, but we are looking at to use mod proxy for Apache/Tomcat > Communication and session persistence. Can it be done using our requirement? > **** > > **** > > Thank you,**** > > **** > > Regards,**** > > Kashif Rahman.**** > > **** > > *From:* Anam Ali Khan [mailto:anamalik...@yahoo.com] > *Sent:* Friday, March 09, 2012 7:44 PM > *To:* users@httpd.apache.org > *Cc:* Kashif Rahman > *Subject:* Re: [users@httpd] Apache + Tomcat Load Balancing**** > > **** > > Hi,**** > > **** > > I would recommend *HAProxy* as a load balancer in your PHP + JSP > application environment. It will work as follows:**** > > **** > > 1. First HAProxy will accept client request.**** > > 2. It will forward those requests to two machines via round robin **** > > 3. Each WebServer must use *mod_jk* as a connector (module) for > Apache/Tomcat communication and session persistence.**** > > 4. HAproxy also perform health checking for two servers.**** > > **** > > -Anam**** > > **** > ------------------------------ > > *From:* Kashif Rahman <kashif.rah...@vopium.com> > *To:* users@httpd.apache.org > *Sent:* Friday, 9 March 2012, 11:36 > *Subject:* [users@httpd] Apache + Tomcat Load Balancing**** > > **** > > Hi,**** > > **** > > We have requirement for to load balance our PHP + JSP application. I need > to know that how can I load balance 2 Apache web Servers and 2 Tomcat > Servers, 1st Web Server + Tomcat on 1st machine and 2nd Web Server + > Tomcat on 2nd machine. We want to use Proxy Load Balancer for Apache to > tomcat communication.**** > > If we use single Apache Web Server and 2 tomcat instances on different > machines, it seems to be working and sharing session fine, but when we add 2 > nd apache web server to have fail over for PHP too, tomcat stops > replicating session? If anyone is running such type of setup then kindly do > let me know what could be the issues or anything missing. I am using Apache > WebServer as a load balancer for both Apache too.**** > > **** > > > Apache Webserver**** > > > |**** > > > |**** > > > _____ |______**** > > > | |**** > > > Apache Webserver Apache Webserver**** > > > | |**** > > > Tomcat Tomcat **** > > **** > > What could be the recommended solution for this requirement?**** > > **** > > Thank you,**** > > **** > > Best Regards,**** > > **** > > Kashif Rahman**** > > **** >
