[YARN-4307] Display blacklisted nodes for AM container in the RM web UI

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: resourcemanager, webapp
• Assignee: Naganarasimha G R
• Reporter: Naganarasimha G R
• Created: 28/Oct/15 14:58
• Updated: 19/Oct/16 17:41
• Resolved: 19/Aug/16 04:40

Description

In pseudo cluster had 2 NM's and had launched app with incorrect configuration ./hadoop org.apache.hadoop.mapreduce.SleepJob -Dmapreduce.job.node-label-expression=labelX -Dyarn.app.mapreduce.am.env=JAVA_HOME=/no/jvm/here -m 5 -mt 1200.
First attempt failed and 2nd attempt was launched, but the application was hung. In the scheduler logs found that localhost was blacklisted but in the UI (app& apps listing page) count was shown as zero and as well no hosts listed in the app page.

Issue Links

• breaks: YARN-4763 RMApps Page crashes with NPE