i2Active is a database transaction-level real-time synchronization software. In the high concurrency transaction scenario of database, it realizes full volume and incremental synchronization of database, and ensures the transaction-level ultimate consistency at the source and target of database by strict validation during synchronization process. It provides advanced functions such as secondary database takeover, incremental back cut, and helps user realize data integration, such as database disaster recovery, heterogeneous data migration, data distribution and data warehouse construction under complex application environment.