[QPID-6575] Log subscription state change message (SUB-1003) only when a subscription has been suspended for an unusually long period of time

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: qpid-java-6.0
• Component/s: Broker-J
• Assignee: Robert Godfrey
• Reporter: Keith Wall
• Created: 05/Jun/15 15:36
• Updated: 02/Oct/19 19:21
• Resolved: 16/Jun/15 21:50

Description

SUB-1003 is logged currently whenever a subscription changes state i.e. as the client session/consumer is able to accept more messages. With some use-cases (low prefetch) and some messaging stacks (Sping's DMLC) this can be very frequent. Indeed, with Spring in certain configurations, this will lead to a pair of messages per message. For this reason, we turn off SUB-1003 in the log4j configuration. In v6, we have killed the log4j configuration so SUB-1003 is being logged again.