[IMPALA-5802] COMPUTE STATS uses MT_DOP=4 by default

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.9.0
• Fix Version/s: Impala 3.4.0
• Component/s: Backend, Frontend
• Labels: compute-stats
• Target Version: Product Backlog
• Epic Color: ghx-label-1
• Assignee: Tim Armstrong
• Reporter: Alexander Behm
• Created: 16/Aug/17 00:47
• Updated: 07/Sep/19 22:45
• Resolved: 07/Sep/19 22:45

Description

Now that IMPALA-3905 has been completely addressed we should run COMPUTE STATS with MT_DOP=4 by default, regardless of file format. The motivation is consistency and speeding up COMPUTE STATS in most cases.

This task is a continuation of IMPALA-4572.