[SPARK-29001] Print better log when process of events becomes slow

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: Spark Core
• Assignee: Xingbo Jiang
• Reporter: Xingbo Jiang
• Created: 05/Sep/19 18:09
• Updated: 12/Nov/19 06:10
• Resolved: 12/Nov/19 06:10

Description

We shall print better log when process of events becomes slow, to help find out what type of events is slow.

Issue Links

• links to: GitHub Pull Request #25702