[YARN-8490] YARN-8467 alternative. Use AsyncDispatcher thread name as AsyncDispatcher name to improve debug

• Type: Improvement
• Status: Open
• Priority: Trivial
• Resolution: Unresolved
• Affects Version/s: 3.1.0
• Component/s: nodemanager, resourcemanager
• Assignee: Unassigned
• Reporter: Shuai Zhang
• Created: 03/Jul/18 06:27
• Updated: 03/Jul/18 07:25

Description

 Currently each AbstractService has a dispatcher, but the dispatcher is not named. Logs from dispatcher is mixed, which is quite hard to debug any hang issues. I suggest

1. Make it possible to name AsyncDispatcher & its thread (partially done in YARN-6015)
2. Mention the AsyncDispatcher name in all its logs

YARN-8467 introduce another parameter to name AsyncDispatcher. This is an alternative to just use the thread name as AsyncDispatcher name.

Issue Links

• relates to: YARN-6015 AsyncDispatcher thread name can be set to improved debugging
• relates to: YARN-8467 AsyncDispatcher should have a name & display it in logs to improve debug