Michal Glowacki [http://community.jboss.org/people/mglowacki] created the discussion "Queue stops working under load without error" To view the discussion, visit: http://community.jboss.org/message/587645#587645 -------------------------------------------------------------- hi,      I created queue to put incoming requests into LinkedList, so I can process them one by one. It works perfect, until for example 10 requests come exactly same time. Then my queue just freezes. Any new request is not processed, I can't see any errors in the logs. I have to redeploy my MDB jar file in order to get it working again. However all messages are lost. I checked via JMX console state of the queue when it's broken, everything looks fine, DLQ is empty. Do you know where I could look for an error? here's jms-destination-service.xml <mbean code="org.jboss.jms.server.destination.QueueService"         name="jboss.messaging.destination:service=Queue,name=ProcessingQueue"      xmbean-dd="xmdesc/Queue-xmbean.xml"> <attribute name="RedeliveryDelay">3000</attribute> <!-- those 2 I added later, but also did not help --> <attribute name="MaxDeliveryAttempts">3</attribute> <depends optional-attribute-name="ServerPeer">jboss.messaging:service=ServerPeer</depends> <depends>jboss.messaging:service=PostOffice</depends> </mbean> and beginning of my MDB class: @MessageDriven(activationConfig = {   @ActivationConfigProperty(   propertyName = "destinationType", propertyValue = "javax.jms.Queue"),   @ActivationConfigProperty(   propertyName = "destination", propertyValue = "/queue/ProcessingQueue"),   @ActivationConfigProperty(   propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge") }) @org.jboss.ejb3.annotation.Depends("org.hornetq:module=JMS,name=\"ProcessingQueue\",type=Queue") Thanks, Michal -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/587645#587645] Start a new discussion in JBoss Messaging at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]