Retries 3 times if MySQL error is "Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111)" when connecting (typically when MySQL is restarting).
Retries 3 times if MySQL error is "Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111)" when connecting (typically when MySQL is restarting).

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