Session Replication w/o Multicast
Is there currently a way of replicating session information across multiple tomcat nodes without multicasting? If not, has any extended the Tomcat API to support this? The reason I ask is because we are using a hardware load balancer, and it does not support multi-casting. One thought is that we could upgrade our hardware to a load balancer that supports this (not sure one even exists), but I'm sure that there are other means of performing replication besides multicasting. Using a database as the session persistence layer is one thought. Direct tomcat node to tomcat node in memory session replication is another thought. Just thought I'd see what ideas/solutions are out there. _ Jeremy Nix Senior Application Developer Southwest Financial Services, LTD. (513) 621-6699 x1158 www.sfsltd.com
Re: Session Replication w/o Multicast
You could save your sessions in an RDBMS, but I'm not sure how responsive this would be... Jeremy Nix wrote: Is there currently a way of replicating session information across multiple tomcat nodes without multicasting? If not, has any extended the Tomcat API to support this? The reason I ask is because we are using a hardware load balancer, and it does not support multi-casting. One thought is that we could upgrade our hardware to a load balancer that supports this (not sure one even exists), but I'm sure that there are other means of performing replication besides multicasting. Using a database as the session persistence layer is one thought. Direct tomcat node to tomcat node in memory session replication is another thought. Just thought I'd see what ideas/solutions are out there. _ Jeremy Nix Senior Application Developer Southwest Financial Services, LTD. (513) 621-6699 x1158 www.sfsltd.com
Re: Session Replication w/o Multicast
yes, a guy posted a patch on this mailing list a while back, where you can predefine your members(hardcode them into server.xml). I am superbusy right now so I have not had time to incorporate those. So that would be direct tomcat to tomcat replication Not sure why you must have a load balancer that supports multicast, should not have anything to do with it. It is the switch/hub/router that your tomcat servers connects into that should support multicast Filip - Original Message - From: Jeremy Nix [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, July 13, 2004 12:22 PM Subject: Session Replication w/o Multicast Is there currently a way of replicating session information across multiple tomcat nodes without multicasting? If not, has any extended the Tomcat API to support this? The reason I ask is because we are using a hardware load balancer, and it does not support multi-casting. One thought is that we could upgrade our hardware to a load balancer that supports this (not sure one even exists), but I'm sure that there are other means of performing replication besides multicasting. Using a database as the session persistence layer is one thought. Direct tomcat node to tomcat node in memory session replication is another thought. Just thought I'd see what ideas/solutions are out there. _ Jeremy Nix Senior Application Developer Southwest Financial Services, LTD. (513) 621-6699 x1158 www.sfsltd.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Session Replication w/o Multicast
forgot to mention, that implementing a hard coded member layer using straight tcp should be pretty easy. just implement the member ship service interface, and you will be good to go Filip - Original Message - From: Filip Hanik - Dev [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, July 13, 2004 12:51 PM Subject: Re: Session Replication w/o Multicast yes, a guy posted a patch on this mailing list a while back, where you can predefine your members(hardcode them into server.xml). I am superbusy right now so I have not had time to incorporate those. So that would be direct tomcat to tomcat replication Not sure why you must have a load balancer that supports multicast, should not have anything to do with it. It is the switch/hub/router that your tomcat servers connects into that should support multicast Filip - Original Message - From: Jeremy Nix [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, July 13, 2004 12:22 PM Subject: Session Replication w/o Multicast Is there currently a way of replicating session information across multiple tomcat nodes without multicasting? If not, has any extended the Tomcat API to support this? The reason I ask is because we are using a hardware load balancer, and it does not support multi-casting. One thought is that we could upgrade our hardware to a load balancer that supports this (not sure one even exists), but I'm sure that there are other means of performing replication besides multicasting. Using a database as the session persistence layer is one thought. Direct tomcat node to tomcat node in memory session replication is another thought. Just thought I'd see what ideas/solutions are out there. _ Jeremy Nix Senior Application Developer Southwest Financial Services, LTD. (513) 621-6699 x1158 www.sfsltd.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
