Did Kiss Anime Get Shut Down Again
Your Linux system is taking likewise long to shut down? Here are the steps yous tin take to notice out what is causing the delayed shutdown and set up the issue.
I hope you are a tad bit familiar with the sigterm and sigkill concept.
When you shut down your Linux arrangement, it sends the sigterm and politely asks the running processes to terminate. Some processes misbehave and they ignore the sigterm and keep on running.
This could crusade a delay to the shutdown process as your system will wait for the running processes to stop for a predefined fourth dimension period. After this time menstruation, information technology sends the kill bespeak to force stop all the remaining running processes and shuts down the system. I recommend reading virtually sigterm vs sigkill to understand the departure.
In fact, in some cases, you would run into a bulletin similar 'a stop job is running' on the black screen.
If your organisation is taking too long in shutting down, you tin do the following:
- Check which procedure/service is taking too long and if yous can remove or reconfigure it to behave properly.
- Change the default waiting period before your system force stops the running processes. [Quick and dirty set]
I am using Ubuntu here which uses systemd. The commands and steps here are valid for whatsoever Linux distribution that uses systemd (about of them do).
Check which processes are causing long shutdown in Linux
If you want to effigy out what's incorrect, you should check what happened at the concluding shutdown. Utilize this command to get the power of 'I know what you did final session' (pun intended):
journalctl -rb -1 The journalctl control allows you to read system logs. With options '-b -1' you filter the logs for the last boot session. With option '-r', the logs are shown in reverse chronological society.
In other words, the 'journalctl -rb -i' command will bear witness the system logs just before your Linux organization was shutdown the last time. This is what you need to analyze the long shutdown problem in Linux.
No journal logs? Here'south what you should practice
If at that place are no periodical logs, please make certain that your distribution uses systemd.
Even on some Linux distributions with systemd, the journal logs are not activated past default.
Make sure that /var/log/journal exists. If it doesn't, create information technology:
sudo mkdir /var/log/journal You should also cheque the content of /etc/systemd/journald.conf file and make sure that the value of Storage is prepare to either automobile or persistent.
Do yous notice something suspicious in the logs? Is in that location a process/service refusing to stop? If yes, investigate if you could remove it without side effects or if yous could reconfigure it. Don't go blindly removing stuff hither, please. You should have knowledge of the procedure.
Speed upwards shutdown in Linux past reducing default stop timeout [Quick set up]
The default look period for the shut down is unremarkably gear up at xc seconds. Your organization tries to force stop the services after this time period.
If you want your Linux system to close downwardly quickly, yous tin can change this waiting menstruation.
You'll detect all the systemd settings in the config file located at /etc/systemd/system.conf. This file should exist filled with lots of line starting with #. They correspond the default values of the entries in the file.
Earlier you exercise anything, it will be a skillful idea to make a re-create of the original file.
sudo cp /etc/systemd/system.conf /etc/systemd/system.conf.orig Await for DefaultTimeoutStopSec here. It should probably be set to 90 sec.
#DefaultTimeoutStopSec=90s You have to alter this value to something more convenient similar v or ten seconds.
DefaultTimeoutStopSec=5s If y'all don't know how to edit the config file in final, use this command to open up the file for editing in your system'southward default text editor (like Gedit):
sudo xdg-open /etc/systemd/organization.conf 
Don't forget to remove the # before DefaultTimeoutStopSec. Salve the file and reboot your organisation.
This should help you reduce the shutdown filibuster for your Linux organisation.
Watchdog consequence!
Linux has a module named watchdog that is used for monitoring whether certain services are running or not. It could be configured to automatically reboot systems if they are hanged due to software error.
It is unusual to use Watchdog on desktop systems because you tin can manually shutdown or reboot the system. It is ofttimes used on remote servers.
First check watchdog is running:
ps -af | grep watch* If watchdog is running on your system, you lot tin change the ShutdownWatchdogSec value from ten minutes to something lower in the systemd config file /etc/systemd/system.conf.
Were y'all able to gear up the lengthy shutdown?
I hope this tutorial helped you in investigating and fixing the long shutdown upshot on your organisation. Do let me know in the comments if yous managed to fix it.
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Source: https://itsfoss.com/long-shutdown-linux/
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