Re: tomcat and proxuy cache server problem
Le Samedi 18 Août 2001 19:55, vous avez écrit : hatim at [EMAIL PROTECTED] wrote: Hello , im using the latest release of mod_backhand with apache 1.3.20 and with jdk1.3 and tomcat . Desciption of my architecture : i have 2 web servers that make the same work , i use mod_backhand for the loadbalancing between them . and i use workers.properties in the Tomcat configuration to allow loadballancing between the two tomcat server . i have one dns server using bind who makes Round Robin with 1 secondes TTL for the both entries ( server web 1 and server web 2 ) they are accessible from the internet under the same name www.server.com ( for ex) when a client connect for the first time in www.server.com , he is redirect to server web 1 ( for exemple ) . then a session is created (jsessionid=... )in this server , and when he makes another GET , he must be redirected to the same server web where he has a session opened . when i tried to connect from the internet to www.server.com with a direct connection , it s work very well session are always retrieved . but when i tried to surf on www.server.com using a proxy -cache server ( like squid ) to access to the internet , i have a problem with a JSP request . the client isnot redirected to the right server , so he didnt retrive his session . and i dont know why ? Any idea ? thank you from your help !! do you thing that it is possible to resolve this problem with installing a cluster for the 2 server web ? Any solution ? I believe that it's a misconfiguration of mod_backhand... Are you sure you're using the bySession candidacy function in the module, so that your sessions will stick to a particular webserver... It's a problem I'm currently trying to solve for the WebApp module, and it's not an easy trick to balance BOTH your Apache http connections and your Tomcat backhands... :( Pier yes i used he bySession candidacy function in the module, , but they specifie in the doc that that work for PHPsession .. and not other .. do you think if i install two or three PC in cluster mod it will resolve the probleme ?
Re: tomcat and proxuy cache server problem
hatim at [EMAIL PROTECTED] wrote: I believe that it's a misconfiguration of mod_backhand... Are you sure you're using the bySession candidacy function in the module, so that your sessions will stick to a particular webserver... It's a problem I'm currently trying to solve for the WebApp module, and it's not an easy trick to balance BOTH your Apache http connections and your Tomcat backhands... :( yes i used he bySession candidacy function in the module, , but they specifie in the doc that that work for PHPsession .. and not other .. Any luck trying to write your own candidacy function behaving like the bySession? do you think if i install two or three PC in cluster mod it will resolve the probleme ? Nope... :( Pier
RE: tomcat and proxuy cache server problem
A problem I had recently that someone forgot to add the FQDN in the apache configs (ServerName). There only was the hostname.. That confuses proxies regularly and sometimes even browsers.. So if your servername says www , it should be www.example.com.. Hope this helps.. (cannot help you with loadbalancing issues, since I never played with it.) Mvgr, Martin -Original Message- From: hatim [mailto:[EMAIL PROTECTED]] Sent: Saturday, August 18, 2001 10:12 PM To: [EMAIL PROTECTED] Subject: tomcat and proxuy cache server problem Hello , im using the latest release of mod_backhand with apache 1.3.20 and with jdk1.3 and tomcat . Desciption of my architecture : i have 2 web servers that make the same work , i use mod_backhand for the loadbalancing between them . and i use workers.properties in the Tomcat configuration to allow loadballancing between the two tomcat server . i have one dns server using bind who makes Round Robin with 1 secondes TTL for the both entries ( server web 1 and server web 2 ) they are accessible from the internet under the same name www.server.com for ex) when a client connect for the first time in www.server.com , he is redirect to server web 1 ( for exemple ) . then a session is created (jsessionid=... )in this server , and when he makes another GET , he must be redirected to the same server web where he has a session opened . when i tried to connect from the internet to www.server.com with a direct connection , it s work very well session are always retrieved . but when i tried to surf on www.server.com using a proxy -cache server like squid ) to access to the internet , i have a problem with a JSP request . the client isnot redirected to the right server , so he didnt retrive his session . and i dont know why ? Any idea ? thank you from your help !! do you thing that it is possible to resolve this problem with installing a cluster for the 2 server web ? Any solution ? Hatim
Re: tomcat and proxuy cache server problem
hatim at [EMAIL PROTECTED] wrote: Hello , im using the latest release of mod_backhand with apache 1.3.20 and with jdk1.3 and tomcat . Desciption of my architecture : i have 2 web servers that make the same work , i use mod_backhand for the loadbalancing between them . and i use workers.properties in the Tomcat configuration to allow loadballancing between the two tomcat server . i have one dns server using bind who makes Round Robin with 1 secondes TTL for the both entries ( server web 1 and server web 2 ) they are accessible from the internet under the same name www.server.com ( for ex) when a client connect for the first time in www.server.com , he is redirect to server web 1 ( for exemple ) . then a session is created (jsessionid=... )in this server , and when he makes another GET , he must be redirected to the same server web where he has a session opened . when i tried to connect from the internet to www.server.com with a direct connection , it s work very well session are always retrieved . but when i tried to surf on www.server.com using a proxy -cache server ( like squid ) to access to the internet , i have a problem with a JSP request . the client isnot redirected to the right server , so he didnt retrive his session . and i dont know why ? Any idea ? thank you from your help !! do you thing that it is possible to resolve this problem with installing a cluster for the 2 server web ? Any solution ? I believe that it's a misconfiguration of mod_backhand... Are you sure you're using the bySession candidacy function in the module, so that your sessions will stick to a particular webserver... It's a problem I'm currently trying to solve for the WebApp module, and it's not an easy trick to balance BOTH your Apache http connections and your Tomcat backhands... :( Pier
