MySQL server kann nicht starten, da keine .sock und .pid datei geschrieben werden kann

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysqld.sock' (2)  

Job for mysql.service failed. See 'systemctl status mysql.service' and 'journalctl -xn' for details.  

root@NODE1:~# systemctl status mysql.service
● mysql.service - LSB: start and stop MySQL
   Loaded: loaded (/etc/init.d/mysql)
   Active: failed (Result: exit-code) since Fr 2017-02-24 14:16:45 CET; 18min ago
  Process: 835 ExecStart=/etc/init.d/mysql start (code=exited, status=1/FAILURE)

Feb 24 14:16:39 NODE1 mysql[835]: Starting MySQL
Feb 24 14:16:40 NODE1 mysql[835]: .170224 14:16:40 mysqld_safe Can't log to...t.  
Feb 24 14:16:45 NODE1 mysql[835]: .....The server quit without updating PID...d!
Feb 24 14:16:45 NODE1 systemd[1]: mysql.service: control process exited, co...=1
Feb 24 14:16:45 NODE1 systemd[1]: Failed to start LSB: start and stop MySQL.
Feb 24 14:16:45 NODE1 systemd[1]: Unit mysql.service entered failed state.
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