Patent attributes
A system, method, and techniques for providing high availability to an application are provided. An example system includes a plurality of databases and a persistence layer that generates, based on a request, one or more sets of database commands that is specific to a database. The system also includes a high-availability layer that is an intermediary between the persistence layer and the plurality of databases, and includes a transaction manager and an execution engine. The transaction manager starts a composite transaction including a sub-transaction corresponding to each database of the plurality of databases and determines whether each applied sub-transaction has successfully completed. A sub-transaction includes a set of database commands. The execution engine applies each sub-transaction to its corresponding database.
