[YARN-5101] YARN_APPLICATION_UPDATED event is parsed in ApplicationHistoryManagerOnTimelineStore#convertToApplicationReport with reversed order

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8.0
• Fix Version/s: 2.8.0, 3.0.0-alpha2
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Sunil G
• Reporter: Xuan Gong
• Created: 17/May/16 17:12
• Updated: 18/Oct/16 21:56
• Resolved: 06/Oct/16 15:21

Description

Right now, the application events are parsed in in ApplicationHistoryManagerOnTimelineStore#convertToApplicationReport with timestamp descending order, which means the later events would be parsed first, and the previous same type of events would override the information. In
https://issues.apache.org/jira/browse/YARN-4044, we have introduced YARN_APPLICATION_UPDATED events which might be submitted by RM multiple times in one application life cycle. This could cause problem.

Issue Links

• is related to: YARN-4044 Running applications information changes such as movequeue is not published to TimeLine server