[YARN-8068] Application Priority field causes NPE in app timeline publish when Hadoop 2.7 based clients to 2.8+

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.8.3
• Fix Version/s: 3.1.0, 2.10.0, 2.9.2, 3.0.3
• Component/s: yarn
• Target Version/s: 3.1.1
• Hadoop Flags: Reviewed
• Assignee: Sunil G
• Reporter: Sunil G
• Created: 23/Mar/18 18:10
• Updated: 07/Nov/18 01:34
• Resolved: 26/Mar/18 18:40

Description

[TimelineServiceV1Publisher|eclipse-javadoc:%E2%98%82=hadoop-yarn-server-resourcemanager/src%5C/main%5C/java%3Corg.apache.hadoop.yarn.server.resourcemanager.metrics%7BTimelineServiceV1Publisher.java%E2%98%83TimelineServiceV1Publisher].appCreated will cause NPE as we use like below

entityInfo.put(ApplicationMetricsConstants.APPLICATION_PRIORITY_INFO, app.getApplicationPriority().getPriority());

We have to handle this case while recovery.

 

Issue Links

• blocks: HADOOP-15501 [Umbrella] Upgrade efforts to Hadoop 3.x
• is broken by: YARN-5865 Retrospect updateApplicationPriority api to handle state store exception in align with YARN-5611
• is duplicated by: YARN-8358 ResourceManager restart fail to recover due to TimelineServiceV1Publisher NPE