[QPID-4517] [Java Broker] default log4j configuration outputs line numbers, which is a performance drag

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.20
• Fix Version/s: 0.21
• Component/s: Broker-J
• Assignee: Robbie Gemmell
• Reporter: Phil Harvey
• Created: 20/Dec/12 10:24
• Updated: 11/Feb/15 20:06
• Resolved: 03/Jan/13 17:04

Description

By default we produce this sort of logging:

2012-12-20 09:52:51,490 INFO  [main] (AbstractConfiguration.java:124) - Tag:'path'

Including line numbers is slow, as described by the log4j documentation (http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/PatternLayout.html):

"WARNING Generating caller location information is extremely slow and should be avoided unless execution speed is not an issue."