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This is the SymmetricDS Wiki site. It is a repository for community collaboration on documentation and design.

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Documentation

Users Guide 1.x
Users Guide 2.x
Data Model 2.x
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SymmetricDS is a feature rich, web-enabled, database independent, data synchronization/replication software. It uses web and database technologies to replicate tables between relational databases in near real time. The software was designed to scale for a large number of databases, work across low-bandwidth connections, and withstand periods of network outage.

By using database triggers, SymmetricDS guarantees that data changes are captured and atomicity is preserved. Support for database vendors is provided through a Database Dialect layer, with implementations for MySQL, Oracle, SQL Server, PostgreSQL, DB2, H2, HSQLDB, Apache Derby, anf Firebird included.

Synchronization can be configured to push data (trickle-back) or pull data (trickle-poll) at an interval. SymmetricDS allows for 2-tier and even n-tier synchronization.

Deployment options include the following:

  • Web application archive (WAR) deployed to an application server such as Tomcat, Jetty, or JBoss
  • Standalone service
  • Embedded in an application

SymmetricDS is written in Java and licensed as open source software under the GNU Lesser General Public License (LGPL).

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