Safe value for DefaultTimeoutStopSec












0















I'm using ubuntu 18.04 on a strong PC, but it takes a very long time to shutdown/restart. After researched I fixed it by change the value of DefaultTimeoutStopSec in /etc/systemd/system.conf to 1s. It works.



But I'm confusing that the value 1s may harmful my data or my machine. Is there any safe and small value for it? And why?










share|improve this question


















  • 1





    Some programs (database servers, for example) often do not shutdown within 1 second because they flush their caches or similar things and write stuff to disk before exiting. With DefaultTimeoutStopSec=1s (default is 90s) they will feel the full impact of kill -9 after just 1 second and probably won't shutdown in a proper way. You may want to figure out which programs need more time to shutdown.

    – PerlDuck
    Dec 25 '18 at 11:20


















0















I'm using ubuntu 18.04 on a strong PC, but it takes a very long time to shutdown/restart. After researched I fixed it by change the value of DefaultTimeoutStopSec in /etc/systemd/system.conf to 1s. It works.



But I'm confusing that the value 1s may harmful my data or my machine. Is there any safe and small value for it? And why?










share|improve this question


















  • 1





    Some programs (database servers, for example) often do not shutdown within 1 second because they flush their caches or similar things and write stuff to disk before exiting. With DefaultTimeoutStopSec=1s (default is 90s) they will feel the full impact of kill -9 after just 1 second and probably won't shutdown in a proper way. You may want to figure out which programs need more time to shutdown.

    – PerlDuck
    Dec 25 '18 at 11:20
















0












0








0








I'm using ubuntu 18.04 on a strong PC, but it takes a very long time to shutdown/restart. After researched I fixed it by change the value of DefaultTimeoutStopSec in /etc/systemd/system.conf to 1s. It works.



But I'm confusing that the value 1s may harmful my data or my machine. Is there any safe and small value for it? And why?










share|improve this question














I'm using ubuntu 18.04 on a strong PC, but it takes a very long time to shutdown/restart. After researched I fixed it by change the value of DefaultTimeoutStopSec in /etc/systemd/system.conf to 1s. It works.



But I'm confusing that the value 1s may harmful my data or my machine. Is there any safe and small value for it? And why?







18.04 shutdown systemd restart






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Dec 25 '18 at 10:35









Jared ChuJared Chu

163110




163110








  • 1





    Some programs (database servers, for example) often do not shutdown within 1 second because they flush their caches or similar things and write stuff to disk before exiting. With DefaultTimeoutStopSec=1s (default is 90s) they will feel the full impact of kill -9 after just 1 second and probably won't shutdown in a proper way. You may want to figure out which programs need more time to shutdown.

    – PerlDuck
    Dec 25 '18 at 11:20
















  • 1





    Some programs (database servers, for example) often do not shutdown within 1 second because they flush their caches or similar things and write stuff to disk before exiting. With DefaultTimeoutStopSec=1s (default is 90s) they will feel the full impact of kill -9 after just 1 second and probably won't shutdown in a proper way. You may want to figure out which programs need more time to shutdown.

    – PerlDuck
    Dec 25 '18 at 11:20










1




1





Some programs (database servers, for example) often do not shutdown within 1 second because they flush their caches or similar things and write stuff to disk before exiting. With DefaultTimeoutStopSec=1s (default is 90s) they will feel the full impact of kill -9 after just 1 second and probably won't shutdown in a proper way. You may want to figure out which programs need more time to shutdown.

– PerlDuck
Dec 25 '18 at 11:20







Some programs (database servers, for example) often do not shutdown within 1 second because they flush their caches or similar things and write stuff to disk before exiting. With DefaultTimeoutStopSec=1s (default is 90s) they will feel the full impact of kill -9 after just 1 second and probably won't shutdown in a proper way. You may want to figure out which programs need more time to shutdown.

– PerlDuck
Dec 25 '18 at 11:20












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