[IMPALA-13384] Precommit jobs *-build-only[-ARM] became a lot slower

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 4.5.0
• Fix Version/s: Impala 4.5.0
• Component/s: Infrastructure
• Epic Color: ghx-label-13
• Assignee: Joe McDonnell
• Reporter: Laszlo Gaal
• Created: 13/Sep/24 23:02
• Updated: 27/Sep/24 01:28
• Resolved: 27/Sep/24 01:28

Description

The build-only jobs used in the first round of precommit verification used to run in 10-12 minutes on the current instance types. While working on IMPALA-13223 I was surprised to see that they now take twice as long, usually between 18-20 minutes. This happens uniformly on Ubuntu versions 20 and 22 as well as across CPU types: Intel x85 and ARM suffer the slowdown equally.
First impressions and the build log seems to point to the Python3 build of impala-shell, but this needs further investigation.