[FLUME-2156] Unregister then re-register MonitoredCounterGroup JMX MBeans on reconfigure

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4.0
• Fix Version/s: 1.5.0
• Assignee: Mike Percy
• Reporter: Mike Percy
• Created: 10/Aug/13 00:27
• Updated: 11/Aug/13 08:35
• Resolved: 11/Aug/13 07:13

Description

When a soft restart (reconfiguration) happens, we should first unregister, then re-register the JMX MBean to avoid spurious error messages in the logs, and even breaking the metrics in some cases.