How to Sync Data From MySQL to Doris Using SeaTunnel

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Introduction

Syncing data between different data storage systems is a common necessity in today’s data-driven world. In this article, we will explore how to efficiently sync data from MySQL to Doris, a distributed SQL data warehouse, using SeaTunnel, a powerful data synchronization tool. We’ll cover the setup, configuration, and implementation steps with coding examples to illustrate each step.

Setting Up SeaTunnel

Before diving into the data syncing process, we need to set up SeaTunnel. SeaTunnel is an open-source data synchronization tool developed by Xiaomi, designed specifically for syncing data between various databases and storage systems.

To begin, make sure you have SeaTunnel installed on your system. You can find the installation instructions on the official SeaTunnel documentation website. Once installed, ensure that SeaTunnel is configured correctly to connect to both MySQL and Doris databases.

Configuring SeaTunnel for MySQL and Doris

SeaTunnel uses configuration files to define the source and target databases, along with other synchronization settings. Below is a sample configuration file for syncing data from MySQL to Doris:

yaml

source:
type: mysql
host: localhost
port: 3306
username: root
password: your_password
database: your_mysql_database
table: your_mysql_tabletarget:
type: doris
host: doris_host
port: 9030
username: your_doris_username
password: your_doris_password
database: your_doris_database
table: your_doris_tablesync:
mode: full
incremental_column: id

In the configuration file:

  • Specify the connection details for the MySQL source database under the source section.
  • Define the connection details for the Doris target database under the target section.
  • Choose the synchronization mode (full or incremental) and specify the incremental column for incremental sync under the sync section.

Implementing Data Syncing with SeaTunnel

Once SeaTunnel is configured, you can initiate the data syncing process. SeaTunnel provides a command-line interface (CLI) for initiating and managing data synchronization tasks. Below are the steps to sync data from MySQL to Doris using SeaTunnel:

  1. Start SeaTunnel Daemon: Run the SeaTunnel daemon to enable data synchronization.

    bash

    seatunnel daemon start
  2. Create Sync Task: Create a sync task using the configured YAML file.

    bash

    seatunnel task create -f config.yaml
  3. Start Syncing: Start the data synchronization task.

    bash

    seatunnel task start task_id
  4. Monitor Sync Status: Monitor the status of the data synchronization task.

    bash

    seatunnel task status task_id
  5. Stop Syncing (Optional): If needed, stop the synchronization task.

    bash

    seatunnel task stop task_id

Conclusion

In this tutorial, we’ve learned how to sync data from MySQL to Doris using SeaTunnel. By following the steps outlined above, you can efficiently transfer data between these two databases with ease. SeaTunnel simplifies the data synchronization process, making it a valuable tool for database administrators and data engineers. With its intuitive interface and powerful capabilities, SeaTunnel streamlines the process of syncing data across different database systems.

In conclusion, SeaTunnel provides a reliable solution for syncing data between MySQL and Doris, helping organizations maintain data consistency and integrity across their database infrastructure.