[YARN-7495] Improve robustness of the AggregatedLogDeletionService

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.1.0, 2.10.0, 2.9.1, 3.0.1, 2.8.4
• Component/s: log-aggregation
• Hadoop Flags: Reviewed
• Assignee: Jonathan Turner Eagles
• Reporter: Jonathan Turner Eagles
• Created: 14/Nov/17 21:08
• Updated: 30/Nov/17 18:56
• Resolved: 30/Nov/17 18:56

Description

The deletion tasks are scheduled with a TimerTask whose scheduler is a Timer scheduleAtFixedRate. If an exception occurs in the log deletion task, the Timer scheduler interprets this as a task cancelation and stops scheduling future deletion tasks.