Hi guys, when using proxy balancer configuration ("<Proxy balancer://...") only in (several) virtualhosts OR simply in server-config, everything works fine. When you make use of balancer config in server-config AND virtual hosts, slotmem fails.
This works: (server-config) <Proxy balancer://appcluster-https> BalancerMember https://appserv6.domain:7000 route=0 BalancerMember https://appserv7.domain:7000 route=1 ProxySet lbmethod=bybusyness nofailover=Off stickysession=JSESSIONID|jsessionid </Proxy> ProxyPass /clusterjsp balancer://appcluster-https/clusterjsp ProxyPassReverse / balancer://appcluster-https/ This also works: (balancer config only in virtual hosts) <VirtualHost *:8081> ... <Proxy balancer://appcluster-http> BalancerMember http://appserv1.domain:5080 route=0 BalancerMember http://appserv2.domain:5080 route=1 ProxySet lbmethod=bybusyness nofailover=Off stickysession=JSESSIONID|jsessionid </Proxy> ProxyPass /clusterjsp balancer://appcluster-http/clusterjsp ProxyPassReverse / balancer://appcluster-http/ </VirtualHost> <VirtualHost *:8082> SSLEngine On ... <Proxy balancer://appcluster-https> BalancerMember https://appserv6.domain:7000 route=0 BalancerMember https://appserv7.domain:7000 route=1 ProxySet lbmethod=bybusyness nofailover=Off stickysession=JSESSIONID|jsessionid </Proxy> ProxyPass /clusterjsp balancer://appcluster-https/clusterjsp ProxyPassReverse / balancer://appcluster-https/ </VirtualHost> This fails: <Proxy balancer://default> BalancerMember http://appserv1.domain:5080 route=0 BalancerMember http://appserv2.domain:5080 route=1 ProxySet lbmethod=bybusyness nofailover=Off stickysession=JSESSIONID|jsessionid </Proxy> ProxyPass /clusterjsp balancer://default/clusterjsp ProxyPassReverse / balancer://default/ <VirtualHost *:8082> <Proxy balancer://appcluster-https> BalancerMember https://appserv6.domain:7000 route=0 BalancerMember https://appserv7.domain:7000 route=1 ProxySet lbmethod=bybusyness nofailover=Off stickysession=JSESSIONID|jsessionid </Proxy> ProxyPass /clusterjsp balancer://appcluster-https/clusterjsp ProxyPassReverse / balancer://appcluster-https/ </VirtualHost> error log: [Wed Jun 13 15:37:06.728860 2012] [proxy_balancer:debug] [pid 9588:tid 140210178676512] mod_proxy_balancer.c(752): AH01178: Doing balancers create: 544, 1 (6) [Wed Jun 13 15:37:06.728868 2012] [slotmem_shm:debug] [pid 9588:tid 140210178676512] mod_slotmem_shm.c(300): AH02300: create /home/zisis/apache-instance-2.4/slotmem-shm-sc583e3db.shm: 544/6 [Wed Jun 13 15:37:06.728964 2012] [proxy_balancer:debug] [pid 9588:tid 140210178676512] mod_proxy_balancer.c(807): AH01184: Doing workers create: balancer://default (sc583e3db_default), 512, 2 [Wed Jun 13 15:37:06.728970 2012] [slotmem_shm:debug] [pid 9588:tid 140210178676512] mod_slotmem_shm.c(300): AH02300: create /home/zisis/apache-instance-2.4/slotmem-shm-sc583e3db_default.shm: 512/2 [Wed Jun 13 15:37:06.729001 2012] [proxy_balancer:debug] [pid 9588:tid 140210178676512] mod_proxy_balancer.c(752): AH01178: Doing balancers create: 544, 2 (7) [Wed Jun 13 15:37:06.729007 2012] [slotmem_shm:debug] [pid 9588:tid 140210178676512] mod_slotmem_shm.c(300): AH02300: create /home/zisis/apache-instance-2.4/slotmem-shm-s2d05e7bf.shm: 544/7 [Wed Jun 13 15:37:06.729037 2012] [proxy_balancer:debug] [pid 9588:tid 140210178676512] mod_proxy_balancer.c(807): AH01184: Doing workers create: balancer://default (sc583e3db_default), 512, 2 [Wed Jun 13 15:37:06.729041 2012] [slotmem_shm:debug] [pid 9588:tid 140210178676512] mod_slotmem_shm.c(584): AH02293: slotmem(/home/zisis/apache-instance-2.4/slotmem-shm-sc583e3db_default.shm) grab failed. Num 2/num_free 0 [Wed Jun 13 15:37:06.729044 2012] [proxy_balancer:emerg] [pid 9588:tid 140210178676512] (22)Invalid argument: AH01186: worker slotmem_grab failed [Wed Jun 13 15:37:06.729069 2012] [:emerg] [pid 9588:tid 140210178676512] AH00020: Configuration Failed, exiting And just a general question: should a balancer-config in server-config be also available in any virtualhost? I didn't find any clue in documentation. At least it does not work, e.g.: <Proxy balancer://default> BalancerMember http://appserv1.domain:5080 route=0 BalancerMember http://appserv2.domain:5080 route=1 ProxySet lbmethod=bybusyness nofailover=Off stickysession=JSESSIONID|jsessionid </Proxy> ProxyPass /clusterjsp balancer://default/clusterjsp ProxyPassReverse / balancer://default/ <VirtualHost *:8082> ... ProxyPass /anotherapp balancer://default/anotherapp ProxyPassReverse / balancer://default/ </VirtualHost> Same error as above, maybe also the same issue?: "AH01186: worker slotmem_grab failed". regards, Zisis