[DRILL-4766] FragmentExecutor should use EventProcessor and avoid blocking rpc threads

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.7.0
• Fix Version/s: 1.8.0
• Component/s: Execution - Flow
• Assignee: Sudheesh Katkam
• Reporter: Abdel Hakim Deneche
• Reviewer: Krystal
• Created: 05/Jul/16 20:08
• Updated: 25/Aug/16 21:24
• Resolved: 09/Aug/16 20:14

Description

Currently, rpc thread can block when trying to deliver a cancel or early termination message to a blocked fragment executor.

Foreman already uses an EventProcessor to avoid such scenarios. FragmentExecutor could be improved to avoid blocking rpc threads as well

Issue Links

• links to: GitHub Pull Request #561