ERROR 2002 (HY000): Can't Connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) - Source

Revision: 76069
User: Branden Keating
Date: 2018-12-06 23:56

All,

I am receiving the above and below error message out of nowhere and I don't know why. 
OS: Linux 16.04 LTS
MariaDB server - 10.3
MariaDB client -10.3
MariaDB core - 10.3

I am using a "Galera" cluster setup, my master serve is having this issue but my slave is running fine. My slave is reading (111 "connection refused"). I assume this is because there is something wrong with MariaDB on the master and thus, it doesn't allow the connection to happen. The error below refers to a ".sock" file but the only thing I can find on the interwebs regarding that file is that it is created when the service starts and deleted when the service stops. Please let me know if I am understanding the correctly or not. I have looked everywhere and it seems that there isn't just 1 answer for my issue. This issue does persist after reboot as well. I am unable to get in to "MySQL" or even start the service, so I am unable to make any changes to anything.

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

Thanks Everyone,

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ERROR 2002 (HY000): Can't Connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) - Source

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