[FLINK-16787] Provide an assigner strategy of average splits allocation

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: API / Core, Runtime / Coordination, Runtime / Task
• Assignee: Unassigned
• Reporter: Jingsong Lee
• Created: 26/Mar/20 02:47
• Updated: 23/Apr/21 13:57

Description

For now InputSplitAssigner:

Each task is to grab split, rather than average distribution, so once the later tasks are not scheduled, the former tasks will grab all splits.

We can provide an assigner strategy of average splits allocation.