Hi, I'm trying to loadbalance sessions over 5 instances of a WO application server. I'm trying to follow these directions:
http://www.markround.com/archives/33-Apache-mod_proxy-balancing-with-PHP-sticky-sessions.html http://www.johnandcailin.com/blog/john/scaling-drupal-step-two-sticky-load-balancing-apache-mod_proxy I have the modules mod_proxy, mod_proxy_balance, mod_proxy_http, mod_status and mod_rewrite loaded. However, the clients are still sent to different instances on nearly each click. The proxy listens on one https address 192.168.8.149, and the WO application instances are configured to listen on 5 other http IP address aliases on the same host (150-154). The proxy is working this far, as I can connect to the proxy, a login page of one of the WO application instances shows up, and I can also login. But on subsequent clicks in the WebUI, I get kicked out. On the instances, I create a cookie using mod_rewrite. I also enabled RewriteLog, and when I tail this log file, then I see the different instances rewriting the cookie, and when I take a look at the cookies that the browser got, the cookie is there and seems to have the expected contents, e.g. the proxy sends me to instance one, the cookie in my browser then has the following contents (taken from a Firefox): Name: BALANCEID Content: balancer.www1 Domain: .mycompany.de Path:/ Send For: Any type of connection Expires: at end of session However, It seems the instances generate the cookie, and it seems to pass the proxy, but for some reason the stickysession=BALANCEID parameter to the proxy doesn't seem to get recognized by the proxy itself so that the sessions are still spread across all instances on any click. Here the configuration of the Proxy virtual host: ========================================================================================== <VirtualHost *> ServerName www.mycompany.de # General setup for the virtual host DocumentRoot "/srv/www/www" ErrorLog /var/log/apache2/error_log TransferLog /var/log/apache2/access_log SSLEngine on SSLCipherSuite ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL SSLCertificateFile /etc/certs/www.mycompany.de.pem SSLCertificateKeyFile /etc/certs/www.mycompany.de.key SSLCertificateChainFile /etc/certs/allcerts.pem <Files ~ "\.(cgi|shtml|phtml|php3?)$"> SSLOptions +StdEnvVars </Files> HostnameLookups Off UseCanonicalName Off <Location /balancer-manager> SetHandler balancer-manager </Location> ProxyRequests Off <Proxy *> AddDefaultCharset off Order deny,allow Allow from all </Proxy> ProxyVia On <Proxy balancer://mycluster> # cluster member 1 BalancerMember http://www0.mycompany.de:80 route=www1 BalancerMember http://www1.mycompany.de:80 route=www2 BalancerMember http://www2.mycompany.de:80 route=www3 BalancerMember http://www3.mycompany.de:80 route=www4 BalancerMember http://www4.mycompany.de:80 route=www5 </Proxy> ProxyPass /balancer-manager ! ProxyPass / balancer://mycluster/ lbmethod=byrequests stickysession=BALANCEID ProxyPassReverse / http://www0.mycompany.de/ ProxyPassReverse / http://www1.mycompany.de/ ProxyPassReverse / http://www2.mycompany.de/ ProxyPassReverse / http://www3.mycompany.de/ ProxyPassReverse / http://www4.mycompany.de/ </VirtualHost> ========================================================================================== Here the configuration of two of the five instances: ========================================================================================== <VirtualHost 192.168.8.150:*> ServerName www.mycompany.de # General setup for the virtual host DocumentRoot "/srv/www/www" ErrorLog /var/log/apache2/error_log TransferLog /var/log/apache2/access_log HostnameLookups Off UseCanonicalName Off RewriteEngine On RewriteRule .* - [CO=BALANCEID:balancer.www0:.mycompany.de] RewriteLog /var/log/apache2/rewrite.log RewriteLogLevel 3 RewriteLogLevel 3 <IfModule ngobjweb_module.c> <LocationMatch ^/OpenGroupware*> SetAppPort 20000 SetHandler ngobjweb-adaptor </LocationMatch> </IfModule> </VirtualHost> <VirtualHost 192.168.8.151:*> ServerName www.mycompany.de # General setup for the virtual host DocumentRoot "/srv/www/www" ErrorLog /var/log/apache2/error_log TransferLog /var/log/apache2/access_log HostnameLookups Off UseCanonicalName Off RewriteEngine On RewriteRule .* - [CO=BALANCEID:balancer.www1:.mycompany.de] RewriteLog /var/log/apache2/rewrite.log RewriteLogLevel 3 <IfModule ngobjweb_module.c> <LocationMatch ^/OpenGroupware*> SetAppPort 20001 SetHandler ngobjweb-adaptor </LocationMatch> </IfModule> </VirtualHost> ========================================================================================== Also, I do have LogLevel debug, but I do not see the log messages regarding the proxy module is doing sth, or that it logs that it matches the BALANCEID? Any hint what I am still missing here? kind regards Sebastian _________________________________________________________________________ In 5 Schritten zur eigenen Homepage. Jetzt Domain sichern und gestalten! Nur 3,99 EUR/Monat! http://www.maildomain.web.de/?mc=021114 --------------------------------------------------------------------- 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: [EMAIL PROTECTED] " from the digest: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
