May 2008 - jboss-dev-forums - Jboss List Archives

[Design of JCA on JBoss] - Re: JBAS-5023

by alesj

"vickyk" wrote : Ales , are we ready for it now ? Sure, the task is resolved. ;-) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149830#4149830 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149830

17 years, 11 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Combined codec and packet

by timfox

"trustin" wrote : | Hmm, or MINA could provide a concurrent hash map backed implementation out of the box (although it will not be the default). | I like the idea of MINA having some config switch boolean "useConcurrentSessionMap" which if true uses a ConcurrentHashMap and if false uses the synchronized map. Then the user can choose which to use based on their number of expected connections and available RAM. This can default to false to preserve current behaviour. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149825#4149825 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149825

17 years, 11 months

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[Design of EJB 3.0] - Re: ejb-client-jar and manifest Class-Path

by alex.loubyansky＠jboss.com

Yes, it was missing. I created manifest.mf in META-INF next to the ejb-jar.xml and assumed it would be picked up. But it didn't work. Now I am using ant's manifest task and it deploys. Thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149818#4149818 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149818

17 years, 11 months

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[Design of JBoss jBPM] - How to decide whether to persisitent a process into database

by realgod

hi all I want to use two processes in a jbpm. But i would like to make a process persistent into database and make another process not persistent into database because of performance. However I found I must configure whether to persistent the process into database, i need make the decision at runtime. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149809#4149809 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149809

17 years, 11 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Combined codec and packet

by trustin

"clebert.suconic(a)jboss.com" wrote : anonymous wrote : Yes. The default attribute map is a synchronized hash map because concurrent hash map consumes more memory as the number of the connections grows. | | Is it really relevant? It will just provide partitioned almost empty HashMaps to avoid the concurrency on a single object. | | And.. isn't this synchronization limiting the number of connection you can reach up to as it is a contention point? Yes, the memory consumption matters when the number of connection becomes very large (e.g. 10000.) MINA team got complaints as soon as we switched to ConcurrentHashMap and that's why we switched back to synchronized HashMap. In most cases, the number of threads which accesses the synchronized map will be less than 3, so it is often OK to use a synchronized map. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149798#4149798 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149798

17 years, 11 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Combined codec and packet

by clebert.suconic＠jboss.com

"timfox" wrote : I am trying to remove or at least minimise our usage of session attributes anyway so this may be moot. Well.. if we need to keep them.. we can just replace the IoSessionDataStructureFactory by a Concurrent implementation. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149794#4149794 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149794

17 years, 11 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Combined codec and packet

by timfox

I am trying to remove or at least minimise our usage of session attributes anyway so this may be moot. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149791#4149791 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149791

17 years, 11 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Combined codec and packet

by clebert.suconic＠jboss.com

anonymous wrote : Yes. The default attribute map is a synchronized hash map because concurrent hash map consumes more memory as the number of the connections grows. Is it really relevant? It will just provide partitioned almost empty HashMaps to avoid the concurrency on a single object. And.. isn't this synchronization limiting the number of connection you can reach up to as it is a contention point? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149790#4149790 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149790

17 years, 11 months

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[Design of EJB 3.0] - Re: ejb-client-jar and manifest Class-Path

by scott.stark＠jboss.org

I don't see any use of the manifest Class-Path in this ear: | [576][valkyrie: core]$ java -cp /tmp ListJar /Users/svn/JBossAS/projects/ejb3/core/target/test-lib/externalrefscoped-first.ear | /Users/svn/JBossAS/projects/ejb3/core/target/test-lib/externalrefscoped-first.ear | +- META-INF/MANIFEST.MF | +- META-INF/application.xml | +- externalrefscoped-first-client-view.jar (archive) | | +- META-INF/MANIFEST.MF | | +- org/jboss/ejb3/test/externalrefscoped/First.class | +- externalrefscoped-first-ejb.jar (archive) | | +- META-INF/MANIFEST.MF | | +- org/jboss/ejb3/test/externalrefscoped/FirstBean.class | | +- META-INF/ejb-jar.xml | +- externalrefscoped-second-client-view.jar (archive) | | +- META-INF/MANIFEST.MF | | +- org/jboss/ejb3/test/externalrefscoped/Second.class | Done | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149783#4149783 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149783

17 years, 11 months

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Combined codec and packet

by trustin

Yes. The default attribute map is a synchronized hash map because concurrent hash map consumes more memory as the number of the connections grows. You can change the default map by implementing your own IoSessionDataStructureFactory and setting its new instance in IoAcceptor or IoConnector. Hmm, or MINA could provide a concurrent hash map backed implementation out of the box (although it will not be the default). Please let me know if we can decrease the memory consumption with concurrent hash map. That would be the best solution. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149782#4149782 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149782

17 years, 11 months

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jboss-dev-forums May 2008