Re: server failover/multiple instances
Any opinions/advice on this? On 6/18/07, Jim Wright [EMAIL PROTECTED] wrote: I am working towards beefing up our current environment, and wondered if I could get some opinions on server failover and using multiple instances. So I have: Production Site Training Site, duplication of the production site which is used by our training department Testing Site In addition we want to have high availability on the production sitewe don't need load balancing, mainly just failover. I'm thinking of getting two copies of Enterprise, setting one up as the production server, and the other as a failover/training/testing server, with each of those in separate instances, and putting the production and failover instances in a cluster. If I put them in a cluster, does that mean they are going to share the load 50/50, or can I make one of them still take the brunt of the traffic unless there is a failure? Is there a better way to do it? ~| Create Web Applications With ColdFusion MX7 Flex 2. Build powerful, scalable RIAs. Free Trial http://www.adobe.com/products/coldfusion/flex2/?sdid=RVJS Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:281545 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
RE: server failover/multiple instances
Using the standard enterprise connector for Apache and IIS, if you put the servers in the cluster, they will share the load. You might be able to configure a different LB algorithm (maybe a 99%/1% weighted), and this should give you what you're looking for - i.e. most requests going to the prd server, and only 1% going to the testing server, until there is a failure in the prd server. I've never set up the weighted scenario, but it should be possible. http://livedocs.adobe.com/jrun/4/JRun_Administrators_Guide/clustering3.htm Russ -Original Message- From: Jim Wright [mailto:[EMAIL PROTECTED] Sent: Tuesday, June 19, 2007 2:27 PM To: CF-Talk Subject: Re: server failover/multiple instances Any opinions/advice on this? On 6/18/07, Jim Wright [EMAIL PROTECTED] wrote: I am working towards beefing up our current environment, and wondered if I could get some opinions on server failover and using multiple instances. So I have: Production Site Training Site, duplication of the production site which is used by our training department Testing Site In addition we want to have high availability on the production sitewe don't need load balancing, mainly just failover. I'm thinking of getting two copies of Enterprise, setting one up as the production server, and the other as a failover/training/testing server, with each of those in separate instances, and putting the production and failover instances in a cluster. If I put them in a cluster, does that mean they are going to share the load 50/50, or can I make one of them still take the brunt of the traffic unless there is a failure? Is there a better way to do it? ~| Create Web Applications With ColdFusion MX7 Flex 2. Build powerful, scalable RIAs. Free Trial http://www.adobe.com/products/coldfusion/flex2/?sdid=RVJS Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:281550 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
Re: server failover/multiple instances
I've never set up the weighted scenario, but it should be possible. http://livedocs.adobe.com/jrun/4/JRun_Administrators_Guide/clustering3.htm Thanks, Russ...that is what I was looking for. ~| ColdFusion 8 beta â Build next generation applications today. Free beta download on Labs http://www.adobe.com/cfusion/entitlement/index.cfm?e=labs_adobecf8_beta Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:281560 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
RE: server failover/multiple instances
I'm thinking of getting two copies of Enterprise, setting one up as the production server, and the other as a failover/training/testing server, with each of those in separate instances, and putting the production and failover instances in a cluster. *-*-*-*- I would recommend keeping your testing/training environment separate from production. Your testing environment may require newly developed code which has not been migrated to production. You probably will want a separate database as well for training and testing for similar reasons. = If I put them in a cluster, does that mean they are going to share the load 50/50, or can I make one of them still take the brunt of the traffic unless there is a failure? Is there a better way to do it? *-*-*-*-*-*- If you are talking about instances of CF in a JRUN cluster, they will equally share the load. JRUN's load balancing is based on Round Robin, with the option to weight the servers if one has beefier hardware. If a cluster goes down, JRUN will automatically start sending the traffic to another instance and if session replication is enabled, the users session will follow them. There are endless setups really depending on what you want. ~Brad ~| Upgrade to Adobe ColdFusion MX7 The most significant release in over 10 years. Upgrade see new features. http://www.adobe.com/products/coldfusion?sdid=RVJR Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:281574 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
