[IMPALA-8070] Unify backend tests into a single executable

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 3.2.0
• Fix Version/s: Impala 3.3.0
• Component/s: Infrastructure
• Epic Color: ghx-label-2
• Assignee: Unassigned
• Reporter: Joe McDonnell
• Created: 11/Jan/19 19:55
• Updated: 23/Dec/20 21:10
• Resolved: 23/Dec/20 21:10

Description

Each backend test links in all of our libraries, so each backend test executable is ~400MB. Impala has 100+ backend test executables and this number will only grow, so this means a fully built Impala development environment will have 40GB of backend tests. Relinking these backend tests also takes a significant chunk of time.

We should explore linking the backend tests into a single executable and using gtest_filter to run individual tests from that executable. This would reduce the diskspace requirement as well as the link time for backend tests.

This is an umbrella Jira to track tasks associated with this change.

Sub-Tasks

• Change an initial set of backend tests to use a unified executable: Resolved
• Convert tests with trivial main() functions to use a unified executable: Resolved