Distributed lock transfer method and device, electronic equipment and computer readable medium

Abstract

The embodiment of the invention discloses a distributed lock transfer method and device, electronic equipment and a computer readable medium. A specific embodiment of the method comprises the steps of determining whether a token is held or not according to a value of a distributed lock of a target critical resource; and in response to determining that the token is held, executing a service operation by using the target critical resource, determining whether the distributed lock meets a handover condition or not according to preset token holding time in response to determining that the service operation is executed by using the target critical resource; and in response to determining that the distributed lock meets the handover condition, updating the value of the distributed lock to a node identifier of a next application node in a target token ring, the target token ring being composed of application nodes competing for the target critical resource. According to the embodiment, load balancing when the application nodes compete for the critical resources is achieved.

Description

technical field [0001] Embodiments of the present disclosure relate to the field of computer technology, and in particular, to a distributed lock handover method, apparatus, electronic device, and computer-readable medium. Background technique [0002] In a distributed environment, when multiple application nodes operate critical resources at the same time, distributed locks are used to coordinate each application node, so that only one of the application nodes can obtain access rights to distributed locks and critical resources. At present, when implementing distributed locks, the usual methods are: implementing distributed locks based on relational databases, or implementing distributed locks based on distributed caches. [0003] However, when using the above method to implement distributed locks, there are often the following technical problems: [0004] When a distributed lock is implemented based on a relational database, or a distributed lock is implemented based on a...

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Problems solved by technology

[0004] When implementing distributed locks based on relational databases or distributed locks based on distributed cache, the acquisition of distributed locks by each application node is random, and it is impossible to reasonably control the fairness of each application node's acquisition of distributed locks in turn. Difficult to achieve load balancing of each node

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