MySQL Connection¶

The MySQL connection type provides connection to a MySQL database.

Configuring the Connection¶

Host (required)

The host to connect to.

Schema (optional)

Specify the schema name to be used in the database.

Login (required)

Specify the user name to connect.

Password (required)

Specify the password to connect.

Extra (optional)

Specify the extra parameters (as json dictionary) that can be used in MySQL connection. The following parameters are supported:

charset: specify charset of the connection
cursor: one of “sscursor”, “dictcursor, “ssdictcursor” . Specifies cursor class to be used
local_infile: controls MySQL’s LOCAL capability (permitting local data loading by clients). See MySQLdb docs for details.
unix_socket: UNIX socket used instead of the default socket.
ssl: Dictionary of SSL parameters that control connecting using SSL. Those parameters are server specific and should contain “ca”, “cert”, “key”, “capath”, “cipher” parameters. See MySQLdb docs for details. Note that to be useful in URL notation, this parameter might also be a string where the SSL dictionary is a string-encoded JSON dictionary.

Example “extras” field:

{
   "charset": "utf8",
   "cursorclass": "sscursor",
   "local_infile": true,
   "unix_socket": "/var/socket",
   "ssl": {
     "cert": "/tmp/client-cert.pem",
     "ca": "/tmp/server-ca.pem'",
     "key": "/tmp/client-key.pem"
   }
}

or

{
   "charset": "utf8",
   "cursorclass": "sscursor",
   "local_infile": true,
   "unix_socket": "/var/socket",
   "ssl": "{\"cert\": \"/tmp/client-cert.pem\", \"ca\": \"/tmp/server-ca.pem\", \"key\": \"/tmp/client-key.pem\"}"
}

When specifying the connection as URI (in AIRFLOW_CONN_* variable) you should specify it following the standard syntax of DB connections - where extras are passed as parameters of the URI. Note that all components of the URI should be URL-encoded.

For example:

mysql://mysql_user:XXXXXXXXXXXX@1.1.1.1:3306/mysqldb?ssl=%7B%22cert%22%3A+%22%2Ftmp%2Fclient-cert.pem%22%2C+%22ca%22%3A+%22%2Ftmp%2Fserver-ca.pem%22%2C+%22key%22%3A+%22%2Ftmp%2Fclient-key.pem%22%7D

Note

If encounter UnicodeDecodeError while working with MySQL connection, check the charset defined is matched to the database charset.