[HADOOP-9160] Adopt Jolokia as the JMX HTTP/JSON bridge.

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Labels: features
• Target Version/s: 2.1.0-beta
• Assignee: Junping Du
• Reporter: Luke Lu
• Created: 20/Dec/12 12:45
• Updated: 16/Sep/13 10:14

Description

The current JMX HTTP bridge has served its purpose, while a more complete solution: Jolokia (formerly Jmx4Perl) has been developed/matured over the years.

Jolokia provides comprehensive JMX features over HTTP/JSON including search and list of JMX attributes and operations metadata, which helps to support inter framework/platform compatibility. It has first class language bindings for Perl, Python, Javascript, Java.

It's trivial (see demo patch) to incorporate Jolokia servlet into Hadoop HTTP servers and use the same security mechanisms.

Adopting Jolokia will substantially improve the manageability of Hadoop and its ecosystem.

Issue Links

• blocks: YARN-997 JMX support for node resource configuration
• blocks: YARN-914 (Umbrella) Support graceful decommission of nodemanager
• blocks: MAPREDUCE-5381 Support graceful decommission of tasktracker
• is blocked by: HADOOP-9964 O.A.H.U.ReflectionUtils.printThreadInfo() is not thread-safe which cause TestHttpServer pending 10 minutes or longer.