[IMPALA-4140] Increase default threadpool size for statestore heartbeat and topic update

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Later
• Affects Version/s: Impala 2.2
• Component/s: Distributed Exec
• Target Version: Product Backlog
• Assignee: Unassigned
• Reporter: Juan Yu
• Created: 15/Sep/16 21:23
• Updated: 21/Dec/20 19:00
• Resolved: 21/Dec/20 19:00

Description

Default threadpool size for statestore heartbeat and topic update is 10. For a large cluster this could be too small and cause membership request and topic update tasks not being processed in timely manner.
We should increase default size to probably 2~3 times of # cores.

Issue Links

• relates to: IMPALA-6437 increase frequency of admission control topic updates