On 5/31/2012 10:49 AM, kharp...@oreillyauto.com wrote: > However, if I stop a context (to > simulate a crashed app) and leave tomcat running, apache seems to consider > the balancer member alive. Obviously, this results in "unavailable" > responses from Tomcat to the end user.
Hi, Kyle - with any luck, Tomcat will return a unique HTTP status code you could use. There is a failonstatus parameter you can set for each balancer member that will have mod_proxy_balancer mark the worker out of service if that status code is found. I've tested this with WebSphere which returns a 503 (Service Unavailable) if a webapp is stopped while the container is running. The downside here is that there's no way to "check" again before it goes back into service - it just gets reenabled when the retry period (default: 60 seconds) expires... so if it's still down by that time, at least one user will be impacted before httpd takes it out of service again. See the params for ProxyPass at http://httpd.apache.org/docs/2.2/mod/mod_proxy.html#proxypass -- Daniel Ruggeri --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org For additional commands, e-mail: users-h...@httpd.apache.org
