linrrzqqq opened a new pull request, #67352:
URL: https://github.com/apache/doris/pull/67352
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
Some Python UDF BE unit tests were flaky and provided limited verification
value. Several tests launched shell-based fake Python processes that only
created Unix socket files or stayed alive for a fixed duration. These tests
exercised process-management branches but did not verify that Doris could start
the production Python server, establish an Arrow Flight connection, or execute
an actual UDF.
This PR:
- Removes or rewrites low-value Python UDF tests that only exercised
implementation details or line coverage.
- Keeps meaningful coverage for process startup failures, shutdown,
recovery, pool initialization, and concurrent process selection.
- Fixes the race in the least-shared-process test by waiting until the
complete process pool is available before checking process distribution.
- Adds an end-to-end BE unit test that:
- Creates a Python runtime through the production venv scanner.
- Starts the real `python_server.py`.
- Connects through Arrow Flight.
- Executes a nullable inline scalar UDF.
- Verifies the returned values and null propagation.
- Adds `PYTHON_UDF_TEST_INTERPRETER` as the only Python interpreter
configuration for this test. It defaults to `/usr/bin/python`, matching the
community P0 pipeline, and can be overridden locally in `custom_env.sh`.
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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