Method and system for multi-thread synchronization in distributed system

Abstract

The invention provides a method and a system for multi-thread synchronization in a distributed system. The method and the system can support the flexible control of the multi-thread synchronization under custom conditions and achieve the purpose that a thread takes the initiative to release a resource and accurately awakens a related waiting thread, and are high in resource utilization rate. The method for the multi-thread synchronization in the distributed system comprises the following steps: receiving a resource control request of the thread, wherein the request has a parameter, and the parameter comprises an identification of the thread and a resource name of the requested resource; reading data of a resource node of the resource according to the resource name; trying to lock the resource, wherein when locking fails, the identification of the thread is placed on a waiting queue of the resource, so that the thread enters a blocking state; when the locking is successful, the thread controls the resource, and the resource is released after the thread utilizes the resource to complete execution; other threads in the waiting queue of the resource are awakened, wherein the awakened threads can try to lock the resource.

Description

technical field [0001] The invention relates to the technical field of computers and software thereof, in particular to a multi-thread synchronization method and system in a distributed system. Background technique [0002] When multiple threads are used to access the same data, it is very easy to have security problems, for example: multiple threads are operating the same data, resulting in data inconsistency, etc. Therefore, we need to use a synchronization mechanism to solve these problems, that is, thread synchronization. Thread synchronization means that when multiple threads access the same resource at the same time, it is necessary to ensure that the resource can only be exclusively occupied by one thread at a time. The mainstream approach now is to divide the data into blocks to achieve data isolation. However, some applications have to take advantage of thread synchronization in distributed systems. [0003] In a distributed system, because applications are deplo...

AI Technical Summary

Problems solved by technology

[0006] 1. All threads query whether they can access resources through active polling, which is inefficient; and when resources are released, there is no mechanism for notifying synchronization threads;

[0007] 2. It does not support flexible and self-defined multi-condition thread synchronization, that is, each thread can actively choose to block according to self-defined conditions or wake up the corresponding thread according to self-defined conditions

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