[IMPALA-9019] Fix runtime filter bugs with mt_dop

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 3.4.0
• Component/s: Distributed Exec
• Epic Color: ghx-label-4
• Assignee: Tim Armstrong
• Reporter: Tim Armstrong
• Created: 08/Oct/19 00:35
• Updated: 22/Oct/19 05:31
• Resolved: 22/Oct/19 05:31

Description

It looks like runtime filters do not get delivered properly. E.g. if I run TPC-H Q 9 with mt_dop=4 and runtime_filter_wait_time_ms=999999, the query appears to get stuck.

This causes TPC-H performance to be significantly worse for some queries.

Strangely, I can only reproduce this on TPC-H scale factor 3, not the smaller scale factor.

Issue Links

• blocks: IMPALA-8964 Increase runtime filter wait timeout for mt_dop