Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for implementing reactive transaction management. A method includes: receiving, by an application framework, a program that defines a transaction having a plurality of operations to one or more respective transactional resources; generating, by the application framework, a respective sequence of reactive operators for each transactional resource in the transaction; initiating each respective sequence of reactive operators, including: determining, by the application framework using a first thread, that one of the sequences has not completed; in response, relinquishing computing resources of the first thread; receiving an indication that all of the sequences of reactive operators have completed; determining that none of the sequences of reactive operators failed; and in response, committing the operations of the transaction in each of the one or more transactional resources.