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

[Design of Messaging on JBoss (Messaging/JBoss)] - Contention on MINA? WAS: Combined codec and packet

by clebert.suconic＠jboss.com

Yesterday... Just because I wanted to have a little better understanding of the packages.. I navigated through the code with a debugger :-) And I had seen one interesting thing. org.apache.mina.common.DefaultIoSessionDataStructureFactory has few synchronized collections: | private static class DefaultIoSessionAttributeMap implements IoSessionAttributeMap { | | private final Map<Object, Object> attributes = | Collections.synchronizedMap(new HashMap<Object, Object>(4)); | And on a test I executed today, this appeared in few threads: pool-3-thread-2" prio=1 tid=0x00007f611431de00 nid=0x32aa waiting for monitor entry [0x000000004444b000..0x000000004444be20] | at java.util.Collections$SynchronizedMap.get(Collections.java:1979) | - waiting to lock <0x00007f61296c47c8> (a java.util.Collections$SynchronizedMap) | at org.apache.mina.common.DefaultIoSessionDataStructureFactory$DefaultIoSessionAttributeMap.getAttribute(DefaultIoSessionDataStructureFactory.java:63) | at org.apache.mina.common.AbstractIoSession.getAttribute(AbstractIoSession.java:343) | at org.apache.mina.common.AbstractIoSession.getAttribute(AbstractIoSession.java:339) | at org.apache.mina.common.SimpleIoProcessorPool.getProcessor(SimpleIoProcessorPool.java:236) | at org.apache.mina.common.SimpleIoProcessorPool.flush(SimpleIoProcessorPool.java:181) | at org.apache.mina.common.SimpleIoProcessorPool.flush(SimpleIoProcessorPool.java:1) | at org.apache.mina.common.DefaultIoFilterChain$HeadFilter.filterWrite(DefaultIoFilterChain.java:644) | at org.apache.mina.common.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:467) | at org.apache.mina.common.DefaultIoFilterChain.access$7(DefaultIoFilterChain.java:464) | at org.apache.mina.common.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:835) | Shouldn't this be using concurrent? Are we (including Trustin) aware of that specific possible contention? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149774#4149774 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149774

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

by scott.stark＠jboss.org

That should be working then as far as I know. Let me take a look at the externalrefscoped deployment classpath metadata I see. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149772#4149772 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149772

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[Design of Kosmos] - Deploying Kosmos on liferay

by muktif

I have downloaded the kosmos-0.2.0RC2-for-liferay-portal.zip for deploying on liferay 4.3 . This zip file contains 3 folders Kosmos-server,kosmos-portlet and slide. The documentation says u need deploy.server.tomcat.xml and deploy-portlet-liferay-portal.xml to build the war files. Can someone tell me where can i get these files and are there any more files that i need to download to build the war. Thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149765#4149765 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149765

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[Design of Messaging on JBoss (Messaging/JBoss)] - 2.0 user docs

by ataylor

Ive made a first attempt at rewriting the user docs for 2.0. Its a first pass so there is still quite a bit more to add or fill in, feel free to comment and suggest anything you think needs adding or removing. If anyone changes any configuration etc, can you now also update the docs. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149760#4149760 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149760

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[Design of Messaging on JBoss (Messaging/JBoss)] - Added param to disable security

by timfox

I've added a new config param to enable/disable security. <enable-security>. This defaults to true. This allows for some performance improvements since extra lookups are avoided. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149757#4149757 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149757

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

by timfox

I have combined the codec and packet classes, so now the packets know how to encode and decode themselves. This has simplified the code a fair bit and reduced the number of lookups. I've also done various other tweaks/optimisations along the way (I've lost track now). The good news is.. we're getting there. Using MINA transport and client and server on same box, I can send over 40K 250 byte messages (non persistent). This is pretty good. Lots more optimisations to do though.... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149754#4149754 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149754

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

by alex.loubyansky＠jboss.com

But in this case there is no application client. It's just a jar which contains the bean's interface. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149747#4149747 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149747

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

by vickyk

Since this is done http://jira.jboss.com/jira/browse/JBDEPLOY-4 so we should be able to rewrite the RARDeployer which will parse ra.xml/jboss-ra.xml in one go . Ales , are we ready for it now ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149722#4149722 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149722

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[Design of Messaging on JBoss (Messaging/JBoss)] - Re: Do we need JournalStorageManager::ADD_MESSAGE?

by timfox

Sounds good . The less copies the better :) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149697#4149697 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149697

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[Design of JCA on JBoss] - Re: jboss-ra.xml useful?

by Jeff Zhang

Thanks vicky, I would like to read forum posts from begin to end. :) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149681#4149681 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4149681

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jboss-dev-forums May 2008