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Fast & Flexible Database Replication

SymmetricDS is open source database replication software that focuses on features and cross platform compatibility.

Cross Platform
Replicate data across different platforms, with compatibility for many databases. Sync from any database to any database in a heterogeneous environment.
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Scale Out Performance
Optimized for performance and scalability, replicate thousands of databases asynchronously in near real time, and span replication across multiple tiers.
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Flexible Configuration
Configure which tables and columns to sync, and in which direction. Subset rows and distribute them across databases. Combine, filter, and transform data.
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SymmetricDS 3.10.3 is released. This release includes 30 bug fixes and 7 improvements. Here are some issues to highlight:

  • Support for Java 11 and 12
  • DbExport option to exclude tables
  • Sync data for table names with special characters
  • Fixed purging of incoming batches immediately for initial load
  • Fixed syncing of data when primary key includes binary type
  • Reduced number of threads used in ack service
  • Support for sticky session with AWS ELB
  • Fixed enums for table creation on MySQL
  • Fixed miscellaneous DbCompare bugs

See the 3.10.3 change log for more details.

Latest Release

SymmetricDS 3.10.4 is now available! Released on 2019-08-23.

There were 328 downloads this week.

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  • Scaling SymmetricDS For Many Clients
    Written by Josh Hicks

    SymmetricDS was originally designed to support a use case with numerous client nodes spread out geographically in order to replicate to a centralized server.  The out of the box properties and configuration are optimized to support many other use cases and may not be sufficient when you need more than a couple dozen client nodes.   Check out some of the helpful hints below to assist in a successful synchronization rollout to numerous clients.

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