Storage system based on multi-class heterogeneous database and data synchronization method

The invention discloses a storage synchronization system based on a multi-class heterogeneous database, and the system comprises a transactional relational database which is used for storing measurement file data and release data; the analysis type relational database is used for storing medium and long term data, and the medium and long term data comprises curve data, day and month freezing data, event original data, archive data and statistical result data; the distributed database is used for storing short-term curve and event original data, day-month frozen original data and statistical result data; the column database is used for storing total data; the cache data stock is used for storing archive data and event data and providing high-speed associated processing data for real-time and non-real-time data processing; the data synchronization unit is used for synchronizing the data to the distributed analysis type relational database and the distributed message queue after the archive data is stored in the