Question 1

How to sync data from MySQL to PostgreSQL using go-etl?

Accepted Answer

Use the MySQL reader and PostgreSQL writer plugins. Create a JSON configuration file specifying connection details and table mappings, then run the go-etl binary with the -c flag, as demonstrated in the examples directory for similar scenarios.

Question 2

go-etl vs Apache Airflow for ETL – which is better?

Accepted Answer

go-etl is focused on batch data synchronization between databases and files with a plugin-based framework, ideal for direct data moves. Apache Airflow is a workflow orchestrator for scheduling complex pipelines. Use go-etl for simple sync tasks and Airflow for managing dependencies and scheduling across multiple tools.

Question 3

How to create a custom writer plugin for go-etl?

Accepted Answer

Use the plugin template tool in tools/datax/plugin to generate a starter template. Implement the writer interface defined in the datax package, then register it with go generate ./... to integrate it into the framework, as per the developer documentation.

Question 4

Does go-etl support incremental data loading?

Accepted Answer

The README doesn't explicitly mention incremental loading features. You may need to implement custom logic in reader plugins, such as using timestamp-based queries, or rely on external scheduling tools to handle incremental syncs.

Question 5

What are the performance benchmarks for go-etl with large datasets?

Accepted Answer

Performance testing is supported via Prometheus monitoring deployment, allowing you to gather metrics and visualize charts. However, specific benchmarks aren't provided; you'll need to test with your data volume and hardware, as suggested in the performance testing section.

Question 6

How to deploy go-etl in a Docker container for production?

Accepted Answer

Pull the Docker image from Docker Hub or build it from source using docker build. Run the container with volume mounts for configuration files and data directories, and expose ports as needed, following the Docker setup instructions in the README.

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