[HDFS-850] Display more memory details on the web ui

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.22.0
• Fix Version/s: 0.21.0
• Hadoop Flags: Reviewed
• Release Note: Changes the format of the message with Heap usage on the NameNode web page.
• Assignee: Dmytro Molkov Assign to me
• Reporter: Dmytro Molkov
• Created: 23/Dec/09 03:36
• Updated: 24/Aug/10 20:50
• Resolved: 11/Mar/10 06:06

Description

With the HDFS-94 being commited, the namenode will use JMX memory beans to get information about heap usage.
They provide us with additional information such as NonHeap memory usage and Heap Commited and Initialized memory in addition to Used and Max.
It will be useful to see that additional information on the NameNode web ui.

Issue Links

• is blocked by: HDFS-94 The "Heap Size" in HDFS web ui may not be accurate