[YARN-9303] Username splits won't help timelineservice.app_flow table

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.2
• Fix Version/s: 3.3.0, 3.2.1
• Component/s: ATSv2
• Labels: atsv2 atsv2-hbase
• Hadoop Flags: Reviewed
• Assignee: Prabhu Joseph
• Reporter: Prabhu Joseph
• Created: 14/Feb/19 08:18
• Updated: 05/Sep/19 10:11
• Resolved: 04/Apr/19 05:54

Description

timelineservice.app_flow hbase table uses pre split logic based on username whereas the rowkeys starts with inverted timestamp (Long.MAX_VALUE - ts). All data will go to the last region and remaining regions will never be inserted. Need to choose right split or use auto-split.