RE: [JBoss-user] I need ammo. -WL SUX
Another suggestion. Try Weblogic 6.0. It contains many bug fixes, including clustering. It also uses JDK 1.3 and the garbage collection under load with hotspot is much improved. Also, EJB 1.1 or 2.0 works better. -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED]] Sent: Friday, March 30, 2001 12:39 PM To: [EMAIL PROTECTED] Subject: RE: [JBoss-user] I need ammo. -WL SUX We've been trying to get an install of Weblogic51 up and running for 4 months! BEA has as of yet been unable to get it run either. They finally admitted that they have a SERIOUS problem with windows and clustering. two thinks to consider, JBoss doesn't offer clustering yet. So the statement is no good. Also, why not cluster on Unix boxes, since you want scalability, Windows is not going to offer it anyway :) :) ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] I need ammo. -WL SUX
Windows 2000 scales just fine Fillip. Certainly the 32-CPU Windows 2000 Datancentre boxes represent much more _vertical_ scalability than 90% or more of businesses need or want I imagine. As for _horizontal_ scalability you can scale till the cows... More seriously, I am curious though about this problem with clustering and why it only applies to Windows. If WebLogic admitted there was a problem perhaps there is a link to some online description/notice? Micheal -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Filip Hanik Sent: 30 March 2001 18:39 To: [EMAIL PROTECTED] Subject: RE: [JBoss-user] I need ammo. -WL SUX We've been trying to get an install of Weblogic51 up and running for 4 months! BEA has as of yet been unable to get it run either. They finally admitted that they have a SERIOUS problem with windows and clustering. two thinks to consider, JBoss doesn't offer clustering yet. So the statement is no good. Also, why not cluster on Unix boxes, since you want scalability, Windows is not going to offer it anyway :) :) ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] I need ammo. -WL SUX
Michael, This is currently BEA's top priority fix over all others. I know of no documentation except a voluminous amount on the private engineering db internal to BEA. It is a problem on all platforms but does not noticeably manifest itself except on windows. The reason is weblogic uses multicast for messaging in the cluster. Windows has a VERY small multicast buffer size. Other platforms allow you to change the size of the multicast buffer and alleviate communication problems. So one, BEA screwed up using multicast for messaging large amounts of data in a cluster. Other products like Gemstone have a much more mature cluster technology and do not need to message to stay in synch. Two, they are sychronizing much more data than they need to, up to 14meg has been measured. Talk about performance downer...that will kill a CPU when you have 4 plus instances all trying to talk at the same time. Mica -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Micheal J Sent: Friday, March 30, 2001 12:18 PM To: [EMAIL PROTECTED] Subject: RE: [JBoss-user] I need ammo. -WL SUX Windows 2000 scales just fine Fillip. Certainly the 32-CPU Windows 2000 Datancentre boxes represent much more _vertical_ scalability than 90% or more of businesses need or want I imagine. As for _horizontal_ scalability you can scale till the cows... More seriously, I am curious though about this problem with clustering and why it only applies to Windows. If WebLogic admitted there was a problem perhaps there is a link to some online description/notice? Micheal -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Filip Hanik Sent: 30 March 2001 18:39 To: [EMAIL PROTECTED] Subject: RE: [JBoss-user] I need ammo. -WL SUX We've been trying to get an install of Weblogic51 up and running for 4 months! BEA has as of yet been unable to get it run either. They finally admitted that they have a SERIOUS problem with windows and clustering. two thinks to consider, JBoss doesn't offer clustering yet. So the statement is no good. Also, why not cluster on Unix boxes, since you want scalability, Windows is not going to offer it anyway :) :) ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] I need ammo. -WL SUX
|So one, BEA screwed up using multicast for messaging large amounts of data |in a cluster. Other products like Gemstone have a much more mature cluster |technology and do not need to message to stay in synch. that is actually pretty smart (mcast sync of ball) we were planning on using that... if they ran into problems likeliness is we will too marc | |Two, they are sychronizing much more data than they need to, up to |14meg has |been measured. Talk about performance downer...that will kill a |CPU when you |have 4 plus instances all trying to talk at the same time. | |Mica | |-Original Message- |From: [EMAIL PROTECTED] |[mailto:[EMAIL PROTECTED]]On Behalf Of Micheal J |Sent: Friday, March 30, 2001 12:18 PM |To: [EMAIL PROTECTED] |Subject: RE: [JBoss-user] I need ammo. -WL SUX | | |Windows 2000 scales just fine Fillip. Certainly the 32-CPU Windows 2000 |Datancentre boxes represent much more _vertical_ scalability than 90% or |more of businesses need or want I imagine. As for _horizontal_ scalability |you can scale till the cows... | |More seriously, I am curious though about this problem with clustering and |why it only applies to Windows. If WebLogic admitted there was a problem |perhaps there is a link to some online description/notice? | |Micheal | | | -Original Message- | From: [EMAIL PROTECTED] | [mailto:[EMAIL PROTECTED]]On Behalf Of Filip Hanik | Sent: 30 March 2001 18:39 | To: [EMAIL PROTECTED] | Subject: RE: [JBoss-user] I need ammo. -WL SUX | | | We've been trying to get an install of Weblogic51 up and running for 4 | months! BEA has as of yet been unable to get it run either. |They finally | admitted that they have a SERIOUS problem with windows and clustering. | | two thinks to consider, JBoss doesn't offer clustering yet. So | the statement | is no good. | Also, why not cluster on Unix boxes, since you want scalability, | Windows is | not going to offer it anyway :) | | :) | | ~ | Namaste - I bow to the divine in you | ~ | Filip Hanik | Software Architect | [EMAIL PROTECTED] | www.filip.net | | | | ___ | JBoss-user mailing list | [EMAIL PROTECTED] | http://lists.sourceforge.net/lists/listinfo/jboss-user | | |___ |JBoss-user mailing list |[EMAIL PROTECTED] |http://lists.sourceforge.net/lists/listinfo/jboss-user | | |___ |JBoss-user mailing list |[EMAIL PROTECTED] |http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] I need ammo. -WL SUX
|So one, BEA screwed up using multicast for messaging large amounts of data |in a cluster. Other products like Gemstone have a much more mature cluster |technology and do not need to message to stay in synch. that is actually pretty smart (mcast sync of ball) we were planning on using that... if they ran into problems likeliness is we will too marc Unless, you have a framework that implements reliable multicasting, like www.javagroups.com, I'm still researching and digging into this technology to see if it would be a fit. As of now, it looks really good, but it is a little bit built to be its own application instead of a component inside of a server application. The statement here, is about thread handling can not be controlled from outside, and when developing an EJB server you have to be able to control most of the threads. Will send you all more feedback once I get really down and dirty with this one. Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] I need ammo. -WL SUX
|Unless, you have a framework that implements reliable multicasting, like |www.javagroups.com, I'm still researching and digging into this technology |to see if it would |be a fit. As of now, it looks really good, but it is a little bit built to |be its own application instead of a component inside of a server |application. The statement here, is about thread handling can not be |controlled from outside, and when developing an EJB server you have to be |able to control most of the threads. | |Will send you all more feedback once I get really down and dirty with this |one. please do so, there were many ideas flying on the clustering and now we need to bring it home... the jmx clustering is in place so at least the infrastructure is there marc | |Filip | |~ |Namaste - I bow to the divine in you |~ |Filip Hanik |Software Architect |[EMAIL PROTECTED] |www.filip.net | | |___ |JBoss-user mailing list |[EMAIL PROTECTED] |http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
Re: [JBoss-user] I need ammo. -WL SUX
marc fleury wrote: |So one, BEA screwed up using multicast for messaging large amounts of data |in a cluster. Other products like Gemstone have a much more mature cluster |technology and do not need to message to stay in synch. that is actually pretty smart (mcast sync of ball) we were planning on using that... if they ran into problems likeliness is we will too Good: use multicast for dirty notifications. Bad: use multicast for sending actual data. Only read data from databases. /Rickard -- Rickard berg Xpedio Author of "Mastering RMI" Email: [EMAIL PROTECTED] ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
