Google CloudSQL MySQL Sink

Writes records to a CloudSQL MySQL table. Each record will be written to a row in the table. For example, suppose you periodically build a recommendation model for products on your online store. The model is stored in a GCS bucket and you want to export the contents of the bucket to a CloudSQL MySQL table where it can be served to your users.

Column names would be autodetected from input schema.

Configuration

Property	Macro Enabled?	Version Introduced	Description

Property	Macro Enabled?	Version Introduced	Description
Use Connection	No	6.7.0/1.8.0	Optional. Whether to use an existing connection. If you use a connection, connection related properties do not appear in the plugin properties.
Connection	Yes	6.7.0/1.8.0	Optional. Name of the connection to use. Project and service account information will be provided by the connection. You can also use the macro function `${conn(connection_name)}`
JDBC Driver Name	No		Required. Name of the JDBC driver to use. Default is cloudsql-mysql.
CloudSQL Instance Type	No		Optional. Whether the CloudSQL instance to connect to is private or public. Default is Public.
Connection Name	Yes (6.10.0)		Required. The CloudSQL instance to connect to in the format <PROJECT_ID>:<REGION>:<INSTANCE_NAME>. Can be found in the instance Overview page.
Port	Yes	6.9.0/1.10.5	Optional. Port that MySQL is running on. Default is 3306.
Username	Yes		Optional. User identity for connecting to the specified database.
Password	Yes		Optional. Password to use to connect to the specified database.
Connection Arguments	Yes		Optional. A list of arbitrary string key/value pairs as connection arguments. These arguments will be passed to the JDBC driver as connection arguments for JDBC drivers that may need additional configurations.
Reference Name	No		Required. Name used to uniquely identify this sink for lineage, annotating metadata, etc.
Database	Yes (6.10.0/1.10.5)		Required. MySQL database name.
Table Name	Yes		Required. Name of the table to export to. Table must exist prior to running the pipeline.
Transaction Isolation Level	No		Optional. Transaction isolation level for queries run by this sink. Default is TRANSACTION_REPEATABLE_READ.
Connection Timeout	No		Optional. The timeout value (in seconds) used for socket connect operations. If connecting to the server takes longer than this value, the connection is broken. A value of 0 means that it is disabled. Default is 10 seconds.

Data Type Mapping

MySQL Data Type	CDAP Schema Data Type

MySQL Data Type	CDAP Schema Data Type
BIT	boolean
TINYINT	int
BOOL, BOOLEAN	boolean
SMALLINT	int
MEDIUMINT	double
INT, INTEGER	int
BIGINT	long
FLOAT	float
DOUBLE	double
DECIMAL	decimal
DATE	date
DATETIME	timestamp
TIMESTAMP	timestamp
TIME	time
YEAR	date
CHAR	string
VARCHAR	string
BINARY	bytes
VARBINARY	bytes
TINYBLOB	bytes
TINYTEXT	string
BLOB	bytes
TEXT	string
MEDIUMBLOB	bytes
MEDIUMTEXT	string
LONGBLOB	bytes
LONGTEXT	string
ENUM	string
SET	string

Examples

Connecting to a public CloudSQL MySQL instance

You want to write output records to “users” table of CloudSQL MySQL database named “prod”, as “root” user with “root” password. Get the latest version of the CloudSQL socket factory jar with driver and dependencies here, and then configure plugin with:

Property	Value

Property	Value
Reference Name	sink1
Driver Name	cloudsql-mysql
Database	prod
Username	root
Password	root
CloudSQL Instance Type	Public
Connection Name	[PROJECT_ID]:[REGION]:[INSTANCE_NAME]
Table Name	users

Connecting to a private CloudSQL MySQL instance

If you want to connect to a private CloudSQL MySQL instance, create a Compute Engine VM that runs the CloudSQL Proxy docker image using the following command:

# Set the environment variables
export PROJECT=[project_id]
export REGION=[vm-region]
export ZONE=`gcloud compute zones list --filter="name=${REGION}" --limit
1 --uri --project=${PROJECT}| sed 's/.*\///'`
export SUBNET=[vpc-subnet-name]
export NAME=[gce-vm-name]
export MYSQL_CONN=[mysql-instance-connection-name]

# Create a Compute Engine VM
gcloud beta compute --project=${PROJECT_ID} instances create ${INSTANCE_NAME}
--zone=${ZONE} --machine-type=g1-small --subnet=${SUBNE} --no-address
--metadata=startup-script="docker run -d -p 0.0.0.0:3306:3306
gcr.io/cloudsql-docker/gce-proxy:1.16 /cloud_sql_proxy
-instances=${MYSQL_CONNECTION_NAME}=tcp:0.0.0.0:3306" --maintenance-policy=MIGRATE
--scopes=https://www.googleapis.com/auth/cloud-platform
--image=cos-69-10895-385-0 --image-project=cos-cloud

Optionally, you can promote the internal IP address of the VM running the Proxy image to a static IP using:

# Get the VM internal IP
export IP=`gcloud compute instances describe ${NAME} --zone ${ZONE} |
grep "networkIP" | awk '{print $2}'`

# Promote the VM internal IP to static IP
gcloud compute addresses create mysql-proxy --addresses ${IP} --region
${REGION} --subnet ${SUBNET}

Get the latest version of the CloudSQL socket factory jar with driver and dependencies from here, and then configure plugin with:

Property