Hi, sadly we once again find some problems with ActiveMq. We are using 5.5.1 but won't be upgrading as we'll probably move to a different message broker.
Anyway the current issue is that with producer flow control enabled and with sendFailIfNoSpaceAfterTimeout set to 15000 (15s) we see no exceptions triggered on the client side. Last night during our load testing we hit the store limit for the messages on disk, 50GB. At this point I would of expected the clients to start throwing exceptions due to the sendFail setting above. However, this is not the case. Upon inspecting the logs for the clients I can see no exceptions this morning. I do however see that all threads are blocked in sending messages to ActiveMq. Below is an example partial stack trace: State: BLOCKED on java.lang.Object@49c05090 owned by: ....Service--4 Total blocked: 45,800 Total waited: 188,752 Stack trace: org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:39) org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:60) org.apache.activemq.ActiveMQConnection.doAsyncSendPacket(ActiveMQConnection.java:1265) org.apache.activemq.ActiveMQConnection.asyncSendPacket(ActiveMQConnection.java:1259) org.apache.activemq.TransactionContext.begin(TransactionContext.java:214) org.apache.activemq.ActiveMQSession.doStartTransaction(ActiveMQSession.java:1774) org.apache.activemq.ActiveMQSession.send(ActiveMQSession.java:1700) - locked java.lang.Object@21d0b66 org.apache.activemq.ActiveMQMessageProducer.send(ActiveMQMessageProducer.java:231) org.apache.activemq.ActiveMQMessageProducerSupport.send(ActiveMQMessageProducerSupport.java:269) org.springframework.jms.connection.CachedMessageProducer.send(CachedMessageProducer.java:117) .... (removing our own classes) The Spring JmsTemplate here is being called to send a message and the entity doing the sending is the Spring DMLC which is executing in a method from our service. Any ideas? Thanks, Justin -- View this message in context: http://activemq.2283324.n4.nabble.com/Client-side-producer-flow-control-exception-never-thrown-tp4678120.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
