I haven't worked with batches, but I did just spend a bunch of time working with setting up Local JMS Transactions with ActiveMQ and Camel. The big things I found were:
* Make sure you turn the prefetch policy down to zero if you are consuming messages across different machines. You can do this with your connection string, so something like: tcp://localhost:61616?jms.prefetchPolicy.queuePrefetch=0 * Make sure you are using a pooledConnectionFactory wrapped around the normal AMQ connection factory (and make sure the pooled connection factory is stopped on shutdown) So something like this if you are using spring: <bean id="pooledConnectionFactory" class="org.apache.activemq.pool.PooledConnectionFactory" destroy-method="stop"> <property name="connectionFactory" ref="activemqConnectionFactory" /> </bean> * Set the cache level on the Jms/ActiveMQ Component properly. I found things worked best when set to CACHE_CONNECTION when working with consumers on multiple servers and Master/Slave failover on the AMQ server. <bean id="activemq" class="org.apache.activemq.camel.component.ActiveMQComponent"> <property name="transacted" value="true"/> <property name="connectionFactory" ref="pooledConnectionFactory"/> <property name="transactionManager" ref="transactionManager"/> <property name="cacheLevelName" value="CACHE_CONNECTION"/> </bean> Even with these settings, things are going to be quite a bit slower than in a non-transactional setup. A lot of that is just the penalty for using transactions. If performance is really critical you may need to look at something like CLIENT_ACKNOWLEGE and deal with any duplicate messages that may get passed through. Travis On Mon, Aug 22, 2011 at 7:08 AM, Viju <vvbiju2...@gmail.com> wrote: > Can someone please help or provide pointers ? The documentation indeed talks > about batches but cant see how is it feasible using camel batching? > > -- > View this message in context: > http://camel.465427.n5.nabble.com/Camel-Transaction-performance-use-of-batches-tp4720389p4723156.html > Sent from the Camel - Users mailing list archive at Nabble.com. >
