Упал mysql сервер, как исправить?

Чисто!
Скрин файл-менеджера: imgdepo.com/id/10433347.jpg

дык а вчерашний?

syslog тогда смотри

или всякие /var/log/messages , что там systemd пишет

Смотрел, логи мскл, системные, mail и messages - тихо

Иван: tail попробовал - ничего не произошло, возможно, я не так использовал.
Попробовал удалить логи, а затем sudo service rsyslog restart, логи заработали, после этого выполняю
sudo /etc/init.d/mysql start,
консоль выдает как раньше:

[....] Starting mysql (via systemctl): mysql.serviceJob for mysql.service failed because the control process exited
with error code. See "systemctl status mysql.service" and "journalctl -xe" for details.
failed!

содержание /var/log/syslog:

Mar 22 00:43:26 petr systemd[1]: Failed to start MySQL Community Server.
Mar 22 00:43:26 petr systemd[1]: mysql.service: Unit entered failed state.
Mar 22 00:43:26 petr systemd[1]: mysql.service: Failed with result 'exit-code'.
Mar 22 00:43:26 petr systemd[1]: mysql.service: Service hold-off time over, scheduling restart.
Mar 22 00:43:26 petr systemd[1]: Stopped MySQL Community Server.
Mar 22 00:43:26 petr systemd[1]: Starting MySQL Community Server...
Mar 22 00:43:27 petr systemd[1]: mysql.service: Main process exited, code=exited, status=1/FAILURE
Mar 22 00:43:37 petr rsyslogd: [origin software="rsyslogd" swVersion="8.16.0" x-pid="30411" x-info="www.rsyslog.com"] exiting on signal 15.
Mar 22 00:43:37 petr rsyslogd: [origin software="rsyslogd" swVersion="8.16.0" x-pid="30539" x-info="www.rsyslog.com"] start
Mar 22 00:43:37 petr rsyslogd-3003: invalid or yet-unknown config file command 'KLogPermitNonKernelFacility' - have you forgotten to load a module? [v8.16.0 try www.rsyslog.com/e/3003 ]
Mar 22 00:43:37 petr rsyslogd: rsyslogd's groupid changed to 111
Mar 22 00:43:37 petr rsyslogd: rsyslogd's userid changed to 106
Mar 22 00:43:37 petr rsyslogd-2039: Could not open output pipe '/dev/xconsole':: No such file or directory [v8.16.0 try www.rsyslog.com/e/2039 ]
Mar 22 00:43:37 petr rsyslogd-2007: action 'action 9' suspended, next retry is Wed Mar 22 00:44:07 2017 [v8.16.0 try www.rsyslog.com/e/2007 ]
Mar 22 00:43:37 petr systemd[1]: Stopping System Logging Service...
Mar 22 00:43:37 petr systemd[1]: Stopped System Logging Service.
Mar 22 00:43:37 petr systemd[1]: Starting System Logging Service...
Mar 22 00:43:37 petr systemd[1]: Started System Logging Service.
Mar 22 00:43:56 petr systemd[1]: Failed to start MySQL Community Server.
Mar 22 00:43:56 petr systemd[1]: mysql.service: Unit entered failed state.
Mar 22 00:43:56 petr systemd[1]: mysql.service: Failed with result 'exit-code'.
Mar 22 00:43:57 petr systemd[1]: mysql.service: Service hold-off time over, scheduling restart.
Mar 22 00:43:57 petr systemd[1]: Stopped MySQL Community Server.
Mar 22 00:43:57 petr systemd[1]: Starting MySQL Community Server...
Mar 22 00:43:57 petr systemd[1]: mysql.service: Main process exited, code=exited, status=1/FAILURE