[HDFS-11247] Add a test to verify NameNodeMXBean#getDecomNodes() and Live/Dead Decom Nodes shown in NameNode WebUI

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 3.0.0-alpha2
• Target Version/s: 3.0.0-alpha2
• Hadoop Flags: Reviewed
• Assignee: Manoj Govindassamy
• Reporter: Manoj Govindassamy
• Created: 15/Dec/16 00:14
• Updated: 20/Dec/16 21:14
• Resolved: 20/Dec/16 20:43

Description

Add unit test to verify the following

• NameNodeMXBean#getDecomNodes() – Decommission in progress nodes – Displayed under "Decommissioning" in NameNode WebUI page dfshealth.html#tab-datanode
• Decommissioned Live and Dead nodes displayed under "Summary" in dfshealth.html#tab-overview page.