Distributed transaction processing method and device

Abstract

The invention provides a distributed transaction processing method and device. The method comprises the steps of requesting a global transaction manager to record global transaction information of a transaction, and obtaining a global transaction unique identifier returned by the global transaction manager; executing all transaction branch operations in the global transaction; if any transaction branch of the global transaction fails to be executed, requesting a global transaction manager to roll back the global transaction; and if the local transactions corresponding to the transaction branches of the global transaction are submitted successfully, requesting the global transaction manager to submit the global transaction. According to the distributed transaction processing method and device provided by the invention, the transaction consistency of the distributed system can be ensured under the condition of keeping no invasion to the business and only needing the database to support the local transaction.

Description

technical field [0001] The present invention relates to the technical field of distributed systems, in particular to a distributed transaction processing method and device. Background technique [0002] With the gradual use of distributed technology in bank transaction systems, it is inevitable that a transaction needs to span multiple databases or multiple subsystems (microservices) and guarantee transactions. Since these resources are completely independent physically, it becomes very complicated to ensure the atomicity, consistency, isolation, and persistence control of distributed transactions. [0003] For example, suppose there is a transaction where A transfers 200 yuan to B. The general process is as follows: [0004] 1) Transaction starts [0005] 2) Call the transfer service, A transfers 200 yuan; [0006] 3) Call the transfer-in service, and B transfers 200 yuan; [0007] 4) End of transaction [0008] In a distributed system, transfer-in and transfer-out ser...

AI Technical Summary

Problems solved by technology

For example, MySQL has partially supported the XA protocol since 5.0, but in certain scenarios, there is a risk of data inconsistency in MySQL's XA transaction processing

[0016] 3) Most of the current XA-based distributed solutions rely on heavyweight application servers (Tuxedo / WebLogic / WebSphere, etc.), which are not suitable for microservice architecture

[0019] Resource reservation is not easy to handle and needs to be designed according to business characteristics. If it is not handled properly, it is difficult to ensure consistency or reduce system performance. When business requirements change, it is difficult to respond to changes in a timely manner

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