Method and device for realizing transaction of data storage system

Abstract

The invention relates to the field of data management, and discloses a method and a device for realizing the transaction of a data storage system, which can reduce the reading and writing operations of a memory, increase the space utilization rate of the memory and improve the transaction processing efficiency. The method provided by the invention comprises the following steps of: at the transaction begin of the data storage system, determining the storage position of data corresponding to a transaction operation, executing the transaction operation, and simultaneously modifying a state identifier corresponding to the storage position from a normal state to a temporary state; and at the end of the transaction, modifying the state identifier corresponding to the storage position from the temporary state to the normal state, wherein the storage position is in a memory space and used for storing data; and the state identifier is used for identifying the state information of the data at the storage position.

Description

technical field [0001] The invention relates to the field of data management, in particular to a method and device for realizing transaction of a data storage system. Background technique [0002] A transaction is a basic program execution unit that accesses and possibly updates various data items in a data storage system. Transaction processing technology mainly includes data recovery technology and concurrency control technology, and transaction is the basic unit of recovery and concurrency. [0003] A transaction consists of a set of operation sequences in the application program, starting with the transaction start (TRANSACTION BEGIN) operation, and ending with the commit (COMMIT) operation or the rollback (ROLLBACK) operation. The COMMIT operation represents the successful end (commit) of transaction execution. At this time, all changes made by the transaction to the data storage system will be delivered and implemented (written into memory), and the data storage syste...

AI Technical Summary

Problems solved by technology

[0007] The disadvantages of the prior art are obvious, and mainly include the following aspects: firstly, this process requires more memory read and write operations, which consumes more time, thereby affecting the efficiency of the data storage system; this prior art The solution is to isolate the data space and backup space of the data storage system. The space here refers to files, storage pages, storage sectors, other storage levels with certain storage functions, or other storage units with certain structures.

Since the data space and the backup space are partitioned and isolated, this partition method will inevitably lead to repeated replication of data during the transaction process, increasing the amount of read and write operations, and reducing efficiency

Secondly, since the storage space of the data storage system is divided into data space and backup space, the two are in a trade-off relationship, and the capacity is mutually restricted. This restriction may limit the transaction capability of the data storage system

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