[SPARK-19777] Scan runningTasksSet when check speculatable tasks in TaskSetManager.

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.1.0
• Fix Version/s: 2.2.0
• Component/s: Scheduler, Spark Core
• Assignee: Jin Xing
• Reporter: Jin Xing
• Created: 01/Mar/17 02:49
• Updated: 17/May/20 17:47
• Resolved: 02/Mar/17 05:16

Description

When check speculatable tasks in TaskSetManager, only scan runningTasksSet instead of scanning all taskInfos.

Issue Links

• is related to: SPARK-16929 Speculation-related synchronization bottleneck in checkSpeculatableTasks
• links to: [Github] Pull Request #17111 (jinxing64)