May 2008 - jboss-user - Jboss List Archives

[JBoss Cache: Core Edition] - A few throughts; Region based buddy backup?

by fungrim

Hi, I thought I'd offer an idea that struck me this morning regarding buddy backup. Consider the following start of a tree: /root/ | /A | /B | /C In our scenario, changes on nodes A-C (including optional sub-trees) may be performed concurrently per node but the system guarantees that even though one thread may change A while another changes B no two threads will ever try to access the same node at the same time. However, given a number of "node executing" threads for concurrency, buddy replication becomes somewhat of a bottle neck as A-C will all be backed up on the same remote node. For example, using TCP/UNICAST in the configuration will force all threads involved to lock on to the same monitors during replication as all backups are located on the same remove instance. This led me to suspect that perhaps, and this is where you can tell me why I'm dead wrong of course, that some sort of "region based buddy backup" would yield a drastically improved performance for this kind of scenarios, as it would enable concurrent transport for all three nodes. In other words, given remote nodes N1, N2, and N3 and you could configure the cache as follows... /root/A (with subtree) - to be buddy backed up at N1 | /root/B (with subtree) - to be buddy backed up at N2 | /root/C (with subtree) - to be buddy backed up at N3 ... thread T1 could concurrently access and replicate A without interfering with thread T2 which is accessing B as 1) they're on different sub-trees in the cache (thus in-VM locking shouldn't be a problem); and 2) replication can be done concurrently (FIFO ordering etc). Am I making any sense here? Cheers /Lars J. Nilsson www.cubeia.com View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4148773#4148773 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4148773

18 years, 1 month

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[Messaging, JMS & JBossMQ] - JMS Durable subscriptions

by priyarao234

Hi all,.. can any body tell me how to create the new users in JBOSS4.2.2 for durable subscriptions.... i'm using default user and pwd (dynsub,dynsub ) but its not working fine like durable subscription but if i use john,needle then its working fine.... plz tell me how to create the users for durable subscriptions.............. thanks in advance............. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4148771#4148771 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4148771

18 years, 1 month

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[JBoss Messaging] - Re: Exception: Did not load correct number of messages

by yuvalry

Unfortunately I can't. We can't reproduce this bug. And it happened to us only once. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4148769#4148769 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4148769

18 years, 1 month

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[Messaging, JMS & JBossMQ] - Re: How to access JBOSS by providing IP address

by priyarao234

dats fine but in server.xml file i don't know where to give ip address.... plz send me code if possible View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4148768#4148768 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4148768

18 years, 1 month

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[JBoss Messaging] - Re: Exception: Did not load correct number of messages

by timfox

If you can produce a step by step description of how to replicate this issue we can re-open the JIRA and take a look. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4148767#4148767 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4148767

18 years, 1 month

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[JBoss Tools (users)] - Re: Do the JBoss Tools for SEAM work?

by max.andersen＠jboss.com

Where do you get that weird folder from ? I don't see that referenced anywhere in the docs... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4148766#4148766 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4148766

18 years, 1 month

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[JBoss Tools (users)] - Re: Eclispe Seam perspective and CVS repository problems

by max.andersen＠jboss.com

sounds weird. could you show us the steps you do ? I normally use File >Import Existing projects and that works fine for me. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4148765#4148765 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4148765

18 years, 1 month

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[JBoss Tools (users)] - Re: TestNG/SeamTest embedded server start error

by max.andersen＠jboss.com

you should ask in the jbossas or seam forum. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4148764#4148764 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4148764

18 years, 1 month

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[JBoss Tools (users)] - Re: Descriptors

by max.andersen＠jboss.com

manali: I still don't understand what you are referring to ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4148763#4148763 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4148763

18 years, 1 month

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[JBoss Tools (users)] - Re: semanitc/sintactic validation error with splitted projec

by max.andersen＠jboss.com

please give more details, example projects etc. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4148762#4148762 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4148762

18 years, 1 month

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jboss-user May 2008