Did anyone find a solution to this? I am having the exact same problem: upon reboot the webapp won’t start. It was working fine before reboot and now I have this same problem again.
Yes, I did kill the zombie processes and removed the .sock file from /tmp.
Last time with this same problem I removed everything and reinstalled (and it was my first time updating to version 2.9). I just wanted to check if there is a better solution first, since I don’t understand why reinstallation would be necessary, since cryosparc had been working minutes beforehand.
It might be worth checking into all the logs available. When you run cryosparcm start, do you see any error messages? Even if you don’t, check the logs of the webapp: cryosparcm log webapp. You should see a message about “GridFS” files being ready to be served if the webapp is ready to go. If you don’t find any errors in there, the database and command core (cryosparcm log database, cryosparcm log command_core), double check that the computer you’re using is able to access the ports you’re using.