[SPARK-35200] Avoid to recompute the pending speculative tasks in the ExecutorAllocationManager and remove unnecessary code

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.2, 3.1.0, 3.1.1
• Fix Version/s: 3.2.0
• Component/s: Scheduler, Spark Core
• Assignee: weixiuli
• Reporter: weixiuli
• Created: 23/Apr/21 03:05
• Updated: 24/Apr/21 21:33
• Resolved: 24/Apr/21 21:33

Description

The number of the pending speculative tasks is recomputed in the ExecutorAllocationManager to calculate the maximum number of executors required. While , it only needs to be computed once to improve performance.

Issue Links

• links to: [Github] Pull Request #32306 (weixiuli)