6 ms·

OP — I’m not that privy to the details of what in the world was running on that MacBook Air, but I’m 100% sure it wasn’t “the production servers for Uber eats C

OP — I’m not that privy to the details of what in the world was running on that MacBook Air, but I’m 100% sure it wasn’t “the production servers for Uber eats Canada.” It was some kind of hack doing some kind of thing on a recurring basis to make sure the service continued. These things were often hacked together by engineers, and sometimes ops people, in the middle of outages, as a stop gap.

JohnMakin 3y ago
yep definitely pulled this move before. Probably on a laptop because it is the only thing that has permissions to do whatever insanely janky thing it’s doing.
- justinclift 3y ago
  Sounds like something probably in the System keychain, that's not getting unlocked when the user is logged out. Incidentally, the command to unlock the system keychain (eg in a cronjob) is: systemkeychain -vt That doesn't seem to be widely known, and is very useful for things like build jobs. ;)
woleium 3y ago
Not that I condone this sort of thing, but folks who do need to do it should know about caffeine [0] which allows a Mac to disable it's lid switch and keep running with the lid closed. [0] https://www.macupdate.com/app/mac/24120/caffeine https://www.macupdate.com/app/mac/24120/caffeine
- Acen 3y ago
  Side note, Caffeine[1][2] does not disable it's lid switch, but instead disables the automatic sleep behaviour while enabled. [1] Author link (includes link to source): https://www.intelliscapesolutions.com/apps/caffeine https://www.intelliscapesolutions.com/apps/caffeine [2] Original author link (stopped updating before OSX Mojave): https://www.lightheadsw.com/caffeine/ https://www.lightheadsw.com/caffeine/
  - raihansaputra 3y ago
    i switched from caffeine to amphetamine due to compat issues and amphetamine does have a mode to disable the lid switch
- fingerlocks 3y ago
  Or you can use the built-in and more powerful commands: pmset and caffeinate. E.g. you can prevent sleeping until another process exists, or initiate sleep or shutdown.

JohnMakin 3y ago

yep definitely pulled this move before. Probably on a laptop because it is the only thing that has permissions to do whatever insanely janky thing it’s doing.

justinclift 3y ago
Sounds like something probably in the System keychain, that's not getting unlocked when the user is logged out. Incidentally, the command to unlock the system keychain (eg in a cronjob) is: systemkeychain -vt That doesn't seem to be widely known, and is very useful for things like build jobs. ;)

woleium 3y ago

Not that I condone this sort of thing, but folks who do need to do it should know about caffeine [0] which allows a Mac to disable it's lid switch and keep running with the lid closed. [0] https://www.macupdate.com/app/mac/24120/caffeine https://www.macupdate.com/app/mac/24120/caffeine

Acen 3y ago
Side note, Caffeine[1][2] does not disable it's lid switch, but instead disables the automatic sleep behaviour while enabled. [1] Author link (includes link to source): https://www.intelliscapesolutions.com/apps/caffeine https://www.intelliscapesolutions.com/apps/caffeine [2] Original author link (stopped updating before OSX Mojave): https://www.lightheadsw.com/caffeine/ https://www.lightheadsw.com/caffeine/
- raihansaputra 3y ago
  i switched from caffeine to amphetamine due to compat issues and amphetamine does have a mode to disable the lid switch
fingerlocks 3y ago
Or you can use the built-in and more powerful commands: pmset and caffeinate. E.g. you can prevent sleeping until another process exists, or initiate sleep or shutdown.