Hello, Thanks for the suggestions from Kumar Guhan, Prattico Elvio, Tom Grassia and Steve Rieger. Since we need a full memory duplicate between two iplanet servers in order to keep webserver failure transparent to users, the only solution is application cluster. The other possible option is Resonate Central Dispatch. thanks, Zhu ======================= In terms of the session fail over, you can configure iplanet to use a database for storing the session data, which is then accessible from all the webservers. Hope this helps. Thanks, Kumar sg ==================== Hi, I assume your css makes the client connection sticky with the same server because of sessions and ssl. Depending on which version of css you have, you can have a ssl offloader (a pci card in your css) so that it would be the css taking care of encrypting/decrypting. At that point if the session data is shared (in a database for example), any server would be able to continue the session. EP ========================= Is the arrowpoint the successor to Cisco's Local Director? I remember using Cisco Local Director for web server load balancing. If it is, I believe you need to set the failed webserver as "out of service" until you can repair the issue on that system. Then you'd "in service" it again. At least, that's how we handled server problems with the local director. --Tom ======================= > There are multiple ways of doing this. > > Vrrp from cisco or on the actual sun boxes would be > the easiest. > > ==================== Hi Zhu, We use iPlanet web server 6.1 with a jsp/servlet container (not iPlanet App server), as far as I am able to see you can enable this on a web app basis rather than a server wide configuration. I have personally not used this facility yet but did some research on. It seems that for every web app, there can be a sun-web.xml file underneath the WEB-INF folder where you specify what session manager you want to use (iPlanet comes along with its own manager called IWSSessionManager) and other parameters like where the session data is stored (file, memory, db, etc). The following url might be able to help you: http://docs.sun.com/source/817-1833-10/pwasessn.html#wp31990 The main doc for iPlanet web server: http://docs.sun.com/app/docs?p=coll%2FS1_websvr61_en Hope this helps. Thanks, Kumar sg Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagersReceived on Tue Mar 22 14:14:32 2005
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