SymmetricDS

Platform-independent, web-enabled, and database-agnostic data synchronization/replication solution
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SymmetricDS Ranking & Summary

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  • Rating:
  • License:
  • LGPL
  • Price:
  • FREE
  • Publisher Name:
  • SymmetricDS Team
  • Publisher web site:
  • http://symmetricds.org/index.html
  • Operating Systems:
  • Mac OS X
  • File Size:
  • 14.1 MB

SymmetricDS Tags


SymmetricDS Description

Platform-independent, web-enabled, and database-agnostic data synchronization/replication solution SymmetricDS is 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, SQL Server, PostgreSQL, HSQLDB, Oracle, and Apache Derby 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, such as the following: · A farm of web server nodes fronting an enterprise-class general office database · A handful of regional servers for synchronizing from the general office to remote geographical areas · 1000(s) of store server nodes using a departmental class database to sync with a regional node · 10(s) of Point of Sale (POS) register nodes using an embedded database to sync with a store server 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 Here are some key features of "SymmetricDS": · Data Channels - Table synchronizations are grouped into independent channels · Guaranteed Delivery - Synchronized data is guaranteed to arrive at the target destination. If a synchronization fails, the same batch of data will be retried until it succeeds or manual intervention is taken. All other data synchronization is halted for the failed channel only. · Transaction Aware - Data updates are recorded and replayed with the same atomicity · Centralized Configuration - All configuration is downloaded from a central registration server · Multiple Deployment Options - Standalone engine, web application, embedded software component · Data Filtering and Rerouting - Allows for localized passwords and sensitive data filtering/routing · HTTP Transport - Pluggable transport defaults to Representation State Transfer (REST-style) HTTP services · Payload Compression - Optionally compresses data on transport · Notification Schemes - Push (trickle-back data) or Pull (trickle-poll data) changes · Symmetric Data Protocol - A fast streaming data format that is easy to generate, parse, and load · Plug-In API - Add customizations through extensions and plug-in points · Two-Way Table Synchronization - The same table can be synchronized both to and from the host system while avoiding update loops · Database Versioning - Specify data synchronization by version of target database · Auto Database Creation - Optionally allow creating and upgrading of database schema · Embeddable - Small enough to embed or bootstrap within another application (i.e. a POS application) · Multiple Schemas - Supports multiple database schemas naturally through the existence of Data Channels · Primary Key Updates - Captures the "before" and "after" data being changed, allowing updates to primary key data · Remote Management - Administration through a Java Management Extensions (JMX) console · Remote Database Administration - SQL can be delivered and run at remote databases via the synchronization infrastructure · Initial Data Load - Prepare the satellite database with an initial or recovery load of data


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