ActiveMQ有支持两种事务,
- JMS transactions - the commit() / rollback() methods on a Session (which is like doing commit() / rollback() on a JDBC connection)
- XA Transactions - where theXASession acts as anXAResource by communicating with the Message Broker, rather like a JDBC Connection takes place in an XA transaction by communicating with the database.
ActiveMq的事务是针对broker而不是producer的,不管session是否commit,broker都会收到message。
如果producer发送模式选择了persistent,那么message过期后会进入死亡队列。在message进入死亡队列之前,ActiveMQ会删除message中的transaction ID,这样过期的message就不在事务中了,不会保存在transaction store中,会直接进入死亡队列。具体删除transaction ID的地方是在
org.apache.activemq.util.BrokerSupport的doResend,将transaction ID保存在了originalTransactionID中,删除了transaction ID
















