[IMPALA-8731] Balance queries between executor groups

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 3.3.0
• Fix Version/s: Impala 4.3.0
• Component/s: Backend
• Labels: admission-control scalability
• Target Version: Product Backlog
• Epic Color: ghx-label-1
• Assignee: YifanZhang
• Reporter: Lars Volker
• Created: 28/Jun/19 22:00
• Updated: 27/Mar/23 04:12
• Resolved: 27/Mar/23 04:12

Description

After IMPALA-8484, we should revisit the assignment policy that we use to distribute queries to executor groups. In particular we should implement a policy that balances queries across executor groups instead of filling them up one by one.