Cannot access /tmp/ray when another user has created the directory

[devin-petersohn]

System information

• OS Platform and Distribution (e.g., Linux Ubuntu 16.04):
• Ray installed from (source or binary):
• Ray version:
• Python version:
• Exact command to reproduce:

Describe the problem

Despite changing the permissions here, I am unable to access the directory if someone else has created it.

Source code / logs

su devin python -c "import ray; ray.init(); sleep(10)"
su alexey python -c "import ray; ray.init(); sleep(10)"

[robertnishihara]

Can you check the actual permissions of /tmp/ray? Perhaps the attempt to change the permissions failed.

[devin-petersohn]

This was resolved with #3591. I found a race condition that was preventing the permissions from being deterministically changed.