Ashwin, Thanks for this, it helped a lot. I ended up going with CACHE_CONNECTION. When I had it set at CACHE_SESSION it looked like I dropped a message (1 out of 500k) during an ActiveMQ fail over test. Not sure if it was from my CACHE_SESSION setting or something else, but i'm getting very good throughput using CACHE_CONNECTION and have not seen any message loss.
Travis On Thu, Jul 7, 2011 at 1:17 PM, Ashwin Karpe <aka...@fusesource.com> wrote: > Hi, > > You can raise it to any level if transactions are not involved. The main > purpose of the cache is not to recycle connections, sessions or consumers > and has nothing to do with transactions. > > There was a bug in the JMSSpringTemplate which caused connection and session > objects to be recycled pos invocation in the absence of a thread pool. The > side effect of this was since the connection object was recycled, maximum > retry counts for failed transactions was ignored and retries would happen > forever. The reason was that in the absence of a pool/cache, connection > objects were garbage collected and re-created all the time which kept > resetting the retry counter to zero. > > If you use local JMS transactions (aka non-XA), you might want to keep the > cache level at CACHE_SESSION at the very least if you have several producers > and consumers under the same session. > > For more details, please check out the following thread > > http://forum.springsource.org/showthread.php?34180-Transaction-rollback-with-CACHE_NONE-vs-CACHE_CONSUMER-SESSION > http://forum.springsource.org/showthread.php?34180-Transaction-rollback-with-CACHE_NONE-vs-CACHE_CONSUMER-SESSION > > Cheers, > > Ashwin... > > ----- > --------------------------------------------------------- > Ashwin Karpe > Apache Camel Committer & Sr Principal Consultant > FUSESource (a Progress Software Corporation subsidiary) > http://fusesource.com > > Blog: http://opensourceknowledge.blogspot.com > --------------------------------------------------------- > -- > View this message in context: > http://camel.465427.n5.nabble.com/ActiveMQComponent-JmsTransactions-CacheLevel-tp4558968p4561929.html > Sent from the Camel - Users mailing list archive at Nabble.com. >
