[JBoss-dev] [JBossCache] - Re: Concurrency Question
I am implementing a queue that is part of the tree cache. Each request will come in and pick the next available work from the queue, and remove that work item from the queue. The queue is shared across the cluster via the tree cache. If the transaction locking is only limited to the tree on which the txn (in this case, read and remove) occurs, then will I not have a problem with multiple requests on different servers picking up the same item (when one server has picked an item, and then removes it, but another server comes in before the txn is completed and the remove is replicated)? Do you have any suggestions on how to handle this scenario? Thanks, Abitha. View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3871379#3871379 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3871379 --- This SF.net email is sponsored by Microsoft Mobile Embedded DevCon 2005 Attend MEDC 2005 May 9-12 in Vegas. Learn more about the latest Windows Embedded(r) Windows Mobile(tm) platforms, applications content. Register by 3/29 save $300 http://ads.osdn.com/?ad_id=6883alloc_id=15149op=click ___ JBoss-Development mailing list JBoss-Development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-development
[JBoss-dev] [JBossCache] - Re: Concurrency Question
If your txn spans across multiple read and remove, then you should be ok. The worst case is when it commits, it will fail on the other node (or timeout) and the work will be rolled back. Remember cache is used for read mostly operations. So in theory, this scenario should not occur that often. -Ben View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3871398#3871398 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3871398 --- This SF.net email is sponsored by Microsoft Mobile Embedded DevCon 2005 Attend MEDC 2005 May 9-12 in Vegas. Learn more about the latest Windows Embedded(r) Windows Mobile(tm) platforms, applications content. Register by 3/29 save $300 http://ads.osdn.com/?ad_id=6883alloc_id=15149op=click ___ JBoss-Development mailing list JBoss-Development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-development
[JBoss-dev] [JBossCache] - Re: Concurrency Question
The isolation level only applies to the data (or node) inside the same cache instance. -Ben View the original post : http://www.jboss.org/index.html?module=bbop=viewtopicp=3871206#3871206 Reply to the post : http://www.jboss.org/index.html?module=bbop=postingmode=replyp=3871206 --- This SF.net email is sponsored by: 2005 Windows Mobile Application Contest Submit applications for Windows Mobile(tm)-based Pocket PCs or Smartphones for the chance to win $25,000 and application distribution. Enter today at http://ads.osdn.com/?ad_id=6882alloc_id=15148op=click ___ JBoss-Development mailing list JBoss-Development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-development
