Dispatching method and system of distributed system

Abstract

The invention discloses a dispatching method and a system of a distributed system. The method comprises the following steps: a dispatching request comprising data reading operation is received by a data dispatcher, and data is stored in at least one entity providing data service in the distributed system; status of each data service corresponding to the dispatching request is determined by the data dispatcher, dispatching response consenting to conduct reading operation on each data service is sent by the data dispatcher when each data service is in an idle / reading status; and each data service is at least one same data service. The invention can effectively solve the defects of resource waste, low task processing efficiency and the like in the distributed dispatching method in the prior art, realizes reasonable resource utilization, and improves task processing efficiency.

Description

technical field

[0001] The present invention relates to data service technology in the computer field, in particular to a scheduling method and system for a distributed system. Background technique

[0002] Task scheduling is a key issue in Grid Computing, Distributed Database System, and Cloud Computing systems. In traditional grid computing, the cost of task scheduling is high, and the scheduling strategy is to migrate data to the computing node where the task is located. In distributed database systems and cloud computing systems, the cost of data migration is high, and most of them adopt the scheduling strategy of assigning tasks to the nodes where the data resides.

[0003] Distributed environment systems, such as cloud computing systems, are characterized by: distributed storage and access of massive data; used in occasions where data is stored once and queried multiple times. figure 1 It is a schematic diagram of the layered structure of the cloud computing system i...

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