Re: Jetspeed-2 Clustering
Andre Bonhote wrote: Hi! It's my first post, and I am completely new to Jetspeed, so bear with me please. The idea is to deploy a portal on n machines, where n is 4 at the moment. We would like to have some pretty load balancers in front of them, the boxes are located in two countries. As this is usual for good portals, the user/customer should not care about where he is. The jetspeed-2 installation will access an oracle 10 database. Now there's my question: Since it doesn't make sense (IMHO) to put the oracle beast on all the 4 machines, is it possible to have all 4 jetspeed installations access the same database? Or even, the same tablespace? Or do I have to create users for each server? I have clustered Jetspeed 1.6-dev and 1.5 in several installations. Jetspeed-2 is not quite cluster ready, but I think it was designed much better than Jetspeed-1 for clustering. Many of the components already persist their state in a database, so therer is not a lot of need for tweaking the implementations like we had to do in 1.6. The plan is to work on clustering for the final release. Current problems I see with Jetspeed-2 and clustering: * PSML stored on the file system * lots of use of the session * cache synchronization on a number of components Is there a clustering guide somewhere? I am quite stuck at the moment, to be honest. Thanks for your kind help in advance Cheers André -- David Sean Taylor Bluesunrise Software [EMAIL PROTECTED] [office] +01 707 773-4646 [mobile] +01 707 529 9194 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Jetspeed-2 Clustering
Hi! It's my first post, and I am completely new to Jetspeed, so bear with me please. The idea is to deploy a portal on n machines, where n is 4 at the moment. We would like to have some pretty load balancers in front of them, the boxes are located in two countries. As this is usual for good portals, the user/customer should not care about where he is. The jetspeed-2 installation will access an oracle 10 database. Now there's my question: Since it doesn't make sense (IMHO) to put the oracle beast on all the 4 machines, is it possible to have all 4 jetspeed installations access the same database? Or even, the same tablespace? Or do I have to create users for each server? Is there a clustering guide somewhere? I am quite stuck at the moment, to be honest. Thanks for your kind help in advance Cheers André -- ___ ___ ___ ___ \C/ \O/ \L/ \T/ Andre Bonhotet: +41 (0)1 5 600 600 V V V VPlatform Infrastructure f: +41 (0)1 5 630 501 we make business Senior Engineer straight.forward COLT Telecom e: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Jetspeed-2 Clustering
Hi Andre, I want to preface this with the fact that I haven't clustered JS2, nor JS1. In fact, I don't even use JS2. That said, I wanted to comment on how I'd design this system, or at least start. --- Andre Bonhote [EMAIL PROTECTED] wrote: Hi! It's my first post, and I am completely new to Jetspeed, so bear with me please. The idea is to deploy a portal on n machines, where n is 4 at the moment. We would like to have some pretty load balancers in front of them, the boxes are located in two countries. As this is usual for good portals, the user/customer should not care about where he is. The jetspeed-2 installation will access an oracle 10 database. Now there's my question: Since it doesn't make sense (IMHO) to put the oracle beast on all the 4 machines, is it possible to have all 4 jetspeed installations access the same database? Or even, the same tablespace? Or do I have to create users for each server? You shouldn't have to create database users for each server. You should be able to set up oracle to live on a fifth box, and have each JS server connect over tcp/ip. Set up your tnsnames.ora on each box and it should be easy. Is there a clustering guide somewhere? I am quite stuck at the moment, to be honest. If I were to want to cluster JS2, I'd first make sure tomcat was sharing session information across the cluster: http://jakarta.apache.org/tomcat/tomcat-5.0-doc/cluster-howto.html (this message will provide some comfort, but I'm not sure if it applies to JS2 http://nagoya.apache.org/eyebrowse/[EMAIL PROTECTED]msgId=500554) Then I'd disable the data cache of JS2, if there is any. You can test that easily enough if you get two boxes running with a simple portlet that changes a row in the db--see if the other change is reflected. Now, this will of course hurt performance, since you'll be accessing data across the network every time, but it's a cheap way to cluster. I'm really not sure what the JS2 data layer looks like. Checkt that' it looks like it might be Torque from the docs on the site. In that case, you'll probably be interested in this document: http://db.apache.org/torque/managers-cache.html which might help you use torques cache in a clustered environment. (Not sure what version of torque is being used, though.) Also, I'd recommend you develop, or at the very least test, with at least two machines, as having a dev environment similar to production can save you a lot of grief. Good luck and let us know how it goes. Dan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Jetspeed-2 Clustering
I know in Jetspeed 1 there is JMS messaging support that is supposed to help clustering. I haven't used it though. Here's a link: http://portals.apache.org/jetspeed-1/messaging.html On Thu, 27 Jan 2005 07:58:42 -0800 (PST), Dan Moore [EMAIL PROTECTED] wrote: Hi Andre, I want to preface this with the fact that I haven't clustered JS2, nor JS1. In fact, I don't even use JS2. That said, I wanted to comment on how I'd design this system, or at least start. --- Andre Bonhote [EMAIL PROTECTED] wrote: Hi! It's my first post, and I am completely new to Jetspeed, so bear with me please. The idea is to deploy a portal on n machines, where n is 4 at the moment. We would like to have some pretty load balancers in front of them, the boxes are located in two countries. As this is usual for good portals, the user/customer should not care about where he is. The jetspeed-2 installation will access an oracle 10 database. Now there's my question: Since it doesn't make sense (IMHO) to put the oracle beast on all the 4 machines, is it possible to have all 4 jetspeed installations access the same database? Or even, the same tablespace? Or do I have to create users for each server? You shouldn't have to create database users for each server. You should be able to set up oracle to live on a fifth box, and have each JS server connect over tcp/ip. Set up your tnsnames.ora on each box and it should be easy. Is there a clustering guide somewhere? I am quite stuck at the moment, to be honest. If I were to want to cluster JS2, I'd first make sure tomcat was sharing session information across the cluster: http://jakarta.apache.org/tomcat/tomcat-5.0-doc/cluster-howto.html (this message will provide some comfort, but I'm not sure if it applies to JS2 http://nagoya.apache.org/eyebrowse/[EMAIL PROTECTED]msgId=500554) Then I'd disable the data cache of JS2, if there is any. You can test that easily enough if you get two boxes running with a simple portlet that changes a row in the db--see if the other change is reflected. Now, this will of course hurt performance, since you'll be accessing data across the network every time, but it's a cheap way to cluster. I'm really not sure what the JS2 data layer looks like. Checkt that' it looks like it might be Torque from the docs on the site. In that case, you'll probably be interested in this document: http://db.apache.org/torque/managers-cache.html which might help you use torques cache in a clustered environment. (Not sure what version of torque is being used, though.) Also, I'd recommend you develop, or at the very least test, with at least two machines, as having a dev environment similar to production can save you a lot of grief. Good luck and let us know how it goes. Dan - 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]
Re: Jetspeed-2 Clustering
That's a great point. With any setup, you're going to want to be sure that the PSML and Registry data is shared, especially if it's going to be changed. If JS2 doesn't have JMS support, you might be able to store this data in your Oracle database. Dan --- Jeff Sheets [EMAIL PROTECTED] wrote: I know in Jetspeed 1 there is JMS messaging support that is supposed to help clustering. I haven't used it though. Here's a link: http://portals.apache.org/jetspeed-1/messaging.html ...snip... - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Jetspeed-2 Clustering
Guys, Keep answering, you're making my day. It's a hell lot of information, and I am happy to learn about all that! Thanks a lot! André (pleased to get so much feedback) -- ___ ___ ___ ___ \C/ \O/ \L/ \T/ Andre Bonhotet: +41 (0)1 5 600 600 V V V VPlatform Infrastructure f: +41 (0)1 5 630 501 we make business Senior Engineer straight.forward COLT Telecom e: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
