[HADOOP-9504] MetricsDynamicMBeanBase has concurrency issues in createMBeanInfo

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha, 3.0.0-alpha1
• Fix Version/s: 2.1.0-beta, 0.23.8, 1.2.1
• Component/s: metrics
• Target Version/s: 2.1.0-beta, 0.23.8, 1.2.1
• Hadoop Flags: Reviewed
• Assignee: Liang Xie
• Reporter: Liang Xie
• Created: 25/Apr/13 10:37
• Updated: 12/May/16 18:21
• Resolved: 06/Jul/13 23:08

Description

Please see HBASE-8416 for detail information.
we need to take care of the synchronization for HashMap put(), otherwise it may lead to spin loop.

Issue Links

• breaks: HBASE-8416 Region Server Spinning on JMX requests