[Ray Core] Fix potential race condition when modifying os.environ #20
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ShaochenYu-YW
approved these changes
Sep 4, 2024
| "os.environ, a possible race condition might happened. " | ||
| "Checking if the env var is already cleaned up and move on." | ||
| ) | ||
| if os.environ.get("OMP_NUM_THREADS", None) is not None: |
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When will this happen? Only condition on top of my mind is it got added back by another thread, but that thread will eventually pop it out.
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The only way to prevent this from happening is to introduce a lock on any access to os.environ. If we are not doing so then there is always going to be a small chance that this could happen. It is hard for me to come up with an exhausted list. But adding a logging here will make sure this is easier to know in the future.
sjoshi6
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Oct 31, 2024
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Why are these changes needed?
Related issue number
Checks
git commit -s) in this PR.scripts/format.shto lint the changes in this PR.method in Tune, I've added it in
doc/source/tune/api/under thecorresponding
.rstfile.