"bela" wrote : #1 exists() doesn't acquire a lock, use get(). We tried the top-level if with both and exist and get to see if it made any difference before I posted, because we thought this might be the case. Thanks for (correctly) pointing back to the Javadoc.
"bela" wrote : #2: you try to update the same data on 3 nodes concurrently. Because you use REPL_SYNC...This is a typical distributed deadlock. Thanks for the distributed deadlock explanation. I knew that there was something I was missing. For us, the locking is not so important (so we will probably not use transactions). What are the solutions for this type of problem? Random sleep times before retrying if a timeout occurs? What about a master node that hands out locks/blocks when called? It seems like there would be a pretty standard set of possibilities when this type of situation is encountered. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3855017#3855017 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3855017 ------------------------------------------------------- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click _______________________________________________ JBoss-Development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development
