Task scheduling method and device, server and storage medium

A task scheduling and scheduler technology, applied in the computer field, can solve problems such as complex business scenarios, inability to intuitively understand the relationship between business sub-processes and execution processes, and high maintenance costs

Pending Publication Date: 2021-01-12
TENCENT TECH (SHENZHEN) CO LTD
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  • Claims
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Problems solved by technology

However, this model splits the relationship between the execution processes in the target business, and it is impossible to intuitively understand the relationship between the business sub-processes and the

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  • Task scheduling method and device, server and storage medium
  • Task scheduling method and device, server and storage medium
  • Task scheduling method and device, server and storage medium

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Embodiment Construction

[0025] Common task scheduling models include synchronous blocking execution model and asynchronous non-blocking execution model. Among them, the synchronous blocking model usually limits the execution of the actual process to only synchronous and serial execution, which limits the processing capacity of the program, thereby limiting the utilization of resources, and cannot describe the essential relationship between processes.

[0026] The common implementation mechanism of the asynchronous non-blocking model is asynchronous callback. The typical model is promise / future, an asynchronous programming model. Promise represents an asynchronous abstract processing object, and future represents the result of an asynchronous task that may not have actually been completed. Callbacks can be added to this result The function callback is used to perform corresponding operations after the task execution succeeds or fails, and the promise is handed over to the task executor, and the task ex...

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Abstract

The embodiment of the invention discloses a task scheduling method and device, a server and a storage medium, and the method comprises the steps of calling a scheduler to carry out the topological sorting of a pre-constructed directed acyclic graph running chart, so as to determine a to-be-executed task node from at least one task node included in the directed acyclic graph running chart; and if the to-be-executed task node is not the termination node, executing a service sub-process in a target service corresponding to the to-be-executed task node by calling a processing interface, and when aservice sub-process execution result returned by the processing interface is received, triggering the scheduler to execute topological sorting on a pre-constructed directed acyclic graph running chart, and determining a to-be-executed task node from at least one task node included in the directed acyclic graph running chart. By adopting the embodiment of the invention, the utilization rate of resources can be improved, the execution relationship among the service sub-processes can be intuitively known, and the maintenance cost of task scheduling is favorably reduced.

Description

technical field [0001] The present application relates to the field of computer technology, and in particular to a task scheduling method, device, server, and storage medium. Background technique [0002] At present, task scheduling models include synchronous blocking model and asynchronous non-blocking model. Among them, the synchronous blocking model usually limits the execution of the actual process to only synchronous serial execution, which limits the processing capacity of the program and thus limits the utilization of resources. ;Asynchronous non-blocking model, such as the asynchronous programming model promise / future model, where future represents an asynchronous task result that may not have actually been completed, promise represents an asynchronous abstract processing object, and the promise / future model separates the task executor from the task result receiver The implementer implements the asynchronous execution process. The task executor holds a promise, and t...

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Application Information

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IPC IPC(8): G06F9/48
CPCG06F9/4881
Inventor 林佳涛吕远方
Owner TENCENT TECH (SHENZHEN) CO LTD
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