This topic describes how to migrate data between ApsaraDB RDS for MariaDB TX instances by using Data Transmission Service (DTS) or the mysqldump plug-in.

Use DTS

For more information about how to use DTS to migrate data between RDS instances, see Migrate data between RDS instances.

Use mysqldump

In this topic, the RDS instances between which you migrate data run MariaDB 10.3.

PrerequisitesProcedure
  1. Use a client to log on to the destination RDS instance and create a database.
  2. Use the mysqldump to export the data of the database that you want to migrate of the source RDS instance as a data file.
    mysqldump -h <Public IP address of the source RDS instance> -P <Port of the source RDS instance> -u <Privileged account of the source RDS instance> -p<Password of the privileged account> --opt --default-character-set=utf8 --hex-blob <Name of the database to be migrated> --skip-triggers > /tmp/<Name of the database to be migrated>.sql

    Example

    mysqldump -h rm-xxx.mariadb.rds.aliyuncs.com -P 3306 -u test -pTestxxx --opt --default-character-set=utf8 --hex-blob testdb --skip-triggers > /tmp/testdb.sql
    Note Do not update data during the export process. This step only exports the data. It does not export stored procedures, triggers, or functions.
  3. Use the mysqldump to export stored procedures, triggers, and functions.
    mysqldump -h <Public IP address of the source RDS instance> -P <Port of the source RDS instance> -u <Privileged account of the source RDS instance> -p<Password of the privileged account> --opt --default-character-set=utf8 --hex-blob <Name of the database to be migrated> -R > /tmp/<Name of the database to be migrated>trigger.sql

    Example

    mysqldump -h rm-xxx.mariadb.rds.aliyuncs.com -P 3306 -u test -pTestxxx --opt --default-character-set=utf8 --hex-blob testdb -R > /tmp/testdbtrigger.sql
    Note If the database does not have stored procedures, triggers, or functions, skip this step.
  4. Execute the following statements to import the data file, stored procedures, triggers, and functions to the destination RDS instance.
    mysql -h <Public IP address of the destination RDS instance> -P <Port of the destination RDS instance> -u <Privileged account of the destination RDS instance> -p<Password of the privileged account> <Database name of the destination RDS instance> < /tmp/<Name of the database to be migrated>.sql
    mysql -h <Public IP address of the destination RDS instance> -P <Port of the destination RDS instance> -u <Privileged account of the destination RDS instance> -p<Password of the privileged account> <Database name of the destination RDS instance> < /tmp/<Name of the database to be migrated>trigger.sql

    Example

    mysql -h rm-xxx.mariadb.rds.aliyuncs.com -P 3306 -u test2 -pTest2xxx test001 < /tmp/testdb.sql
    mysql -h rm-xxx.mariadb.rds.aliyuncs.com -P 3306 -u test2 -pTest2xxx test001 < /tmp/testdbtriggertrigger.sql