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Sync MySQL to ClickHouse in Real Time with NineData

ClickHouse is a powerful analytics engine, but you still need a reliable way to keep it aligned with MySQL. NineData provides a no-code path for real-time MySQL-to-ClickHouse replication.

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Why sync MySQL with ClickHouse?​

MySQL is built for transactional workloads. ClickHouse is built for fast analytics. To use them together, you need a dependable way to move MySQL data into ClickHouse in real time.

What NineData provides​

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  • One-click schema mapping: Automatically maps MySQL table structures and data types for ClickHouse, including engine selection and index compatibility.
  • Real-time incremental sync: Captures MySQL binlogs and streams changes into ClickHouse, including DML and DDL events.
  • High-speed performance: Supports up to 200 GB/hour for full sync and 20,000 rows/sec for incremental sync.
  • Built-in consistency checks: Supports full and incremental validation with one-click repair.
  • Monitoring and alerts: Keeps you informed about sync delays, task failures, and data inconsistencies.

Before you begin​

  • Add the MySQL source and ClickHouse target to NineData.
  • Make sure you have permission to create replication tasks.
  • Prepare any required schema mapping rules or target table settings.

Zero-code setup in minutes​

  1. Connect sources

    Add MySQL and ClickHouse as data sources in the NineData console.

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  2. Configure the sync task

    Choose full and incremental sync, then review the mapping and task settings.

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  3. Verify and monitor (optional)

    Enable data consistency checks and alert rules if needed.

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Result​

Once setup is finished, ClickHouse stays in sync with MySQL in near real time.

Next steps​

  • Enable consistency checks and alerts for production tasks.
  • Review the use cases below for rollout patterns.

Real-world impact​

  • Volvo: Used log-based CDC replication to keep on-premises and cloud databases synchronized across regions.

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  • Minimax: Used NineData during a cloud migration to move large volumes of business data without downtime.

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  • ECMS Express: Used intelligent routing and cross-cloud replication to keep distributed logistics data consistent.

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  • Hong Kong Hospital Authority: Modernized critical databases with zero-downtime migration and real-time sync.

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Get started for free​

If your incremental traffic is moderate, NineData's free tier (200 rows/sec) is enough for many teams.

Start syncing today. Power real-time analytics with the simplicity of NineData.

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