[YARN-1081] Minor improvement to output header for $ yarn node -list

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.1.1-beta
• Component/s: client
• Labels: newbie
• Target Version/s: 2.1.0-beta
• Hadoop Flags: Reviewed
• Assignee: Akira Ajisaka
• Reporter: Tassapol Athiapinya
• Created: 19/Aug/13 17:59
• Updated: 22/Nov/14 11:17
• Resolved: 28/Aug/13 05:59

Description

Output of $ yarn node -list shows number of running containers at each node. I found a case when new user of YARN thinks that this is container ID, use it later in other YARN commands and find an error due to misunderstanding.

current output

2013-07-31 04:00:37,814|beaver.machine|INFO|RUNNING: /usr/bin/yarn node -list
2013-07-31 04:00:38,746|beaver.machine|INFO|Total Nodes:1
2013-07-31 04:00:38,747|beaver.machine|INFO|Node-Id	Node-State	Node-Http-Address	Running-Containers
2013-07-31 04:00:38,747|beaver.machine|INFO|myhost:45454	   RUNNING	myhost:50060	   2

proposed output

2013-07-31 04:00:37,814|beaver.machine|INFO|RUNNING: /usr/bin/yarn node -list
2013-07-31 04:00:38,746|beaver.machine|INFO|Total Nodes:1
2013-07-31 04:00:38,747|beaver.machine|INFO|Node-Id	Node-State	Node-Http-Address	Number-of-Running-Containers
2013-07-31 04:00:38,747|beaver.machine|INFO|myhost:45454	   RUNNING	myhost:50060	   2