Brad Wood wrote: > > So, at what level does the cluster "load balancing" occur? > Does the WS connector "know" what instances are in the cluster?
Yes. > If I have three instances on three separate servers with three separate > IPs all in one cluster, and one web server is connected to that instance > (heck let's say its on a separate server too), which IP address does it > send the request to? It sends it to the instance that has a server.id that is identical to the first 4 bytes of the jsessionid. (See connector.properties in /SERVER-INF/ for the server.id.) If there is no jsessionid it picks one according to the defined algorithm. > What if one physical box goes down? The connector will detect that and stop sending requests to that instance (for some types of failure setting a smaller TCPTimedWaitDelay can greatly increase the speed of failure detection, see the MS documentation and RFC 793 for the consequences). > Does the connector know all of the > ip address for all of the instances in my cluster? Yes. Check out some of the files in your wsconfig dir, they can be very enlightening. Jochem ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| ColdFusion MX7 by Adobe® Dyncamically transform webcontent into Adobe PDF with new ColdFusion MX7. Free Trial. http://www.adobe.com/products/coldfusion?sdid=RVJV Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:273740 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
