Gordon: I'm on RHEL5 and yum gives me the following version for the qpidd package:
qpidd.i386 0.4.732838-1.el5 I presume that's M4? Thanks, Sandy -----Original Message----- From: Gordon Sim [mailto:[email protected]] Sent: Thursday, March 05, 2009 1:54 AM To: [email protected] Cc: Sandy Pratt Subject: Re: A few clustering/failover questions Sandy Pratt wrote: > I've been experimented with failover on a cluster of two brokers, and > I often see this log item when a broker fails: > > 2009-mar-04 17:11:19 debug Exception constructed: Attempted size > underflow on dequeue(21): size: max=104857600, current=0; count: unli > mited; type=flow_to_disk (qpid/broker/QueuePolicy.cpp:54) > > What does underflow mean here? The policy maintains a running count of enqueued messages and the aggregate size. Underflow here means that more data was dequeued than was enqueued which indicates some logical error. What version of the code are you using? M4 or latest from trunk? --------------------------------------------------------------------- Apache Qpid - AMQP Messaging Implementation Project: http://qpid.apache.org Use/Interact: mailto:[email protected]
