Re: load balancer ars health check

[Doug Blair]

** Patchsk, Take a look at  http://webserver:port/arsys/samples/StatusCheck.jsp. StatusCheck.jsp actually does exercise the web server, the AR server and the database. You can see the SELECT sent to the database by the MidTier user in your arsql.log, which means that all the components above that are working.  This script appears to have been designed just for this purpose.  We don't use it on the load balancer, but we do run it once a minute from a cron task and send some alarms if it fails. Might be just what you need... Doug On Oct 31, 2011, at 12:18 AM, patchsk wrote: ** Just curious to see what are the different health check mechanisms being used for ARS in a load balanced env in different companies. We are using F5 and we have load balancing for Midtiers and also for ARS. For midtiers our health check was to monitor http://webserver:port/arsys/home url. And no issues with this. For ARS we are using tcp monitor on the ARS tcp port. However recently we are seeing on ars side that the ars tcp port is responding fine but the arserver itself is hung, so the load balancer is detecting as if the ARS is up and running but users end up getting timeouts during login. So how are you avoiding this situation in your organization? Are you guys writing perl/java/c login scripts and using these with the loadbalancer as health checks? _attend WWRUG12 www.wwrug.com ARSlist: "Where the Answers Are"_ Doug -- Doug Blair d...@blairing.com +1 224-558-5462 200 North Arlington Heights Road Arlington Heights, Illinois 60004 ITILv3 _attend WWRUG12 www.wwrug.com ARSlist: "Where the Answers Are"_