On 27/02/2008, Kamal <[EMAIL PROTECTED]> wrote: > > I am getting this warning in the activemq console, hope this can be safely > ignored. Is there any way to get rid of this. This might be resulting > while setting the property JMSXGroupFirstForConsumer, I am not getting > proper values for this property. It is ok for me as I don't have any logic > that is dependent on it. > > WARN QueueSubscription - Failed to set boolean header: > javax.jms.MessageNotWriteableException: Message properties are read-only > javax.jms.MessageNotWriteableException: Message properties are read-only > at > > org.apache.activemq.command.ActiveMQMessage.checkReadOnlyProperties(ActiveMQMessage.java:568) > at > > org.apache.activemq.command.ActiveMQMessage.setObjectProperty(ActiveMQMessage.java:382) > at > > org.apache.activemq.command.ActiveMQMessage.setBooleanProperty(ActiveMQMessage.java:534) > at > > org.apache.activemq.broker.region.QueueSubscription.assignGroupToMe(QueueSubscription.java:134) > at > > org.apache.activemq.broker.region.QueueSubscription.canDispatch(QueueSubscription.java:101) > at > > org.apache.activemq.broker.region.PrefetchSubscription.dispatch(PrefetchSubscription.java:383) > at > > org.apache.activemq.broker.region.QueueSubscription.dispatch(QueueSubscription.java:172) > at > > org.apache.activemq.broker.region.PrefetchSubscription.add(PrefetchSubscription.java:129) > at > org.apache.activemq.broker.region.Queue.addSubscription(Queue.java:19
Are you using ActiveMQ 4.1.1 by any chance? I think this might have been fixed in 5.0.0; its the broker trying to mark the first message group message as being the first to be dispatched to a consumer. -- James ------- http://macstrac.blogspot.com/ Open Source Integration http://open.iona.com
