[IMPALA-8965] Cleanup after switch to multi-threaded query execution

• Type: Umbrella
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Backend
• Target Version: Product Backlog
• Epic Color: ghx-label-13
• Assignee: Unassigned
• Reporter: Tim Armstrong
• Created: 23/Sep/19 21:35
• Updated: 01/Jun/20 21:54

Description

Follow-on from IMPALA-3902 - keep track of cleanup we can do when removing old parallelism model.

Issue Links

• depends upon: IMPALA-3902 Multi-threaded query execution

Sub-Tasks

• Simplify ownership of FilterContexts and MemPools in ScannerContext once non-MT scan node is removed: Open
• Move scan range queues to fragment-level and do dynamic scheduling within a node: Resolved
• Remove ThreadResourceMgr and thread token-related code: Open
• Remove --unlock_mt_dop and--mt_dop_auto_fallback: Resolved