Q: after upgrade to sierra, shutdown is extremely slow
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Sep 25, 2016 1:40 AMby chris_g1,HelpfulHi rmschaefer,
Thanks for upgrading to Mac OS Sierra! It looks like your Mac is taking a bit longer to shutdown though. Great way to make sure all of your apps are closed before shutting down. You can try checking your Mac's log in or start up items. Your log in items are apps that run as soon as you start up your Mac. They can continuously run in the background slowing up your machine. macOS Sierra: If you think you have incompatible login items
You can also check to see how much disk space you have available on your Mac. With Mac OS Sierra, you can free up and optimize your disk space effortlessly to allow your Mac to run at it's peak performance! System Information for Mac: Optimize storage on your Mac
If freeing up your Mac's disk space and removing login items not resolve the issue, try booting up the Mac into Safe Mode. Try safe mode if your Mac doesn‘t finish starting up
What is safe mode?
Safe mode (sometimes called safe boot) is a way to start up your Mac so that it performs certain checks, and prevents some software from automatically loading or opening. Starting your Mac in safe mode does the following:
Verifies your startup disk, and attempts to repair directory issues if needed
Loads only required kernel extensions
Prevents Startup Items and Login Items from opening automatically
Disables user-installed fonts
Deletes font caches, Kernel cache and other system cache files
Together, these changes can help resolve or isolate issues related to your startup disk.
These steps should have your Mac shutting down normally as expected and Mac OS Sierra running as smooth as it is suppose to. Thanks for using Apple Support Communities to post your question.
Have a nice day. -
Sep 25, 2016 1:43 AMby rmschaefer,Sorry, but no, no and no.
I've already tried your tips before writing here. Free disk-space is more than sufficient, caches have been rebuilt by starting in safe mode.
My log-in-items are tested (and cleared from garbage).
No way.
Shutdown takes 5 to 7 minutes, sometimes indicating that "kauth ... has timed out", sometimes staying in a state with spinning dented-wheel on a black screen.
But thank you for your ideas.
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Sep 25, 2016 7:16 AMby JayB.,Hey rmschaefer,
You're welcome! Glad I can lend a hand here. Because you are still having issues, you might want to use one of Apple's outer support options. Contact Apple Support
Take care! -
Oct 3, 2016 2:10 AMby rmschaefer,THe tool worked fine, the issue seemed to have gone. Two days later, it was back. This time, the tool couldn't
do anything to resolve the problem. :-((
Elsewhere, I read about an issue with the mysqld-daemon with macOS Sierra.
Having installed MySQL, I investigated the daemon and its behaviour.
And indeed, the daemon blocks on shutdown. It takes several minutes of patience, beach-ball spinning, when you try to stop mysqld.
After stopping it, shutdown is quick and with no hassle.
Seems, this is the real problem.
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Oct 3, 2016 9:47 AMby linusrain1987,I was having the same issue. I did try all of the suggestions mentioned above. None of it worked.
After going through some forums, I found that the delay in shutdown was caused by MySQL service. Just uncheck the "Automatically Start MySQL Server on Startup" option and stop the MySQL Server (It took about 10 mins. Be patient). After that the everything is back to normal. No delays in shutdown or restart.
