pytest-dev / pytest-dev/pytest-xdist
pytest hangs while running tests
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- Python
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Description
Hello everyone,
Last night I let my test suite running until this morning, but I noticed that it hasn't finished running all tests, looking at htop, I noticed some strange processes running for a really long time, as shown in this screenshot:
Looking at the tests output, I saw that the last ran tests were all ran by the same worker gw2 (there were 4 workers running), as there were 3 processes import sys;exec(eval(sys.stdin.readline())) running for 13+ hours, I think that those 3 workers were just stuck somehow.
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First steps
- Read the whole issue, then the project's contributing guide.
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Research direction
No source file, test, command, or minimal reproduction is named. Start by reproducing the hang with pytest-xdist using multiple workers and inspect the long-running gw2 worker processes described in the report. Done means identifying the cause of the stalled workers and covering the failure with a regression test.
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Assessment
- Tech stack
- python
- Domain
- distributed-systems, testing-qa
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100