sassoftware / sassoftware/python-swat
Not working well with multiprocessing library fork start method
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- Dominant language
- Python
- Stars
- 159
- Forks
- 65
- PR merge metrics
- No merged PRs in 30d
Description
Hi, when I use multiprocessing library on Unix machine, the CAS connection cannot return or print out my evaluated table to my disk, whether I use to_csv() or to_pickle().
However, if I change the start mode to Windows default spawn mode, it will work without issue. multiprocessing.set_start_method('spawn')
Please refer to this link for more information.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the issue on a Unix machine with multiprocessing's fork start method and a CAS connection, then compare it with the documented spawn workaround. Check whether evaluated tables can be written with to_csv() and to_pickle(); done means both operations return or print the table to disk under fork.
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Assessment
- Tech stack
- python
- Domain
- backend, data
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100