Re: ClassCastException while subscribing to a topic

2016-10-21 Thread windeyu
Hi, we also encountered the ClassCastException from AbstractStoreCursor.fillBatch() method. We're running ActiveMQ 5.13.3 on linux RedHat 7.2, and the persistent dataDirectory points to a Windows Server 2012. I attached the debugger to catch the exception. Below is the screenshot. I hope this p

What is duplicate delivery poison ack?

2014-12-02 Thread windeyu
Hello, Over several thousands of messages consumed, occasionally I got the following WARN in the log. /[ActiveMQMessageConsumer:1434] ( ) acking duplicate delivery as poison, redelivery must be pending to another consumer on this connection, failoverRedeliveryWaitPeriod=0. / (1) What is duplic

Messages lost?! Need help on debugging.

2013-07-17 Thread windeyu
We've been running some loads on our network of brokers using ActiveMQ 5.8.0. We have a data verification tool to make sure all messages were received. Occasionally but not always we had data inconsistency. I tracked down and it seemed some messages were not delivered. I added the following set