How to stop the whole system gracefully ?

Tommy Sway sz_cuitao at
Mon Aug 30 05:37:20 UTC 2021

My system is installed using kola-ansible.

The database was inconsistent due to the last unexpected shutdown, and the
system could not start normally, which was very troublesome. 

I would like to ask what command should be used to shut down the entire
system gracefully in an emergency ?





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