Maintenance method and device of data storage system and mobile terminal

Abstract

The invention relates to a maintenance method and device of a data storage system and a mobile terminal. The data storage system comprises a hotspot statistical hash table, a plurality of data hash tables, a plurality of index hash tables, a plurality of data files and a plurality of index files which are stored in a magnetic disc, wherein the hotspot statistical hash table, the data hash tables and the index hash tables are stored in a memory. A persistence thread, an arrangement thread and an elimination thread are arranged in the data storage system; the persistence thread carries out persistence processing on the data hash table into a data file; the persistence thread carries out persistence processing on the index hash table into an index file; the arrangement thread arranges data inthe data file according to the index hash table and updates the corresponding index information in the index hash table; and the obsolete thread deletes the expired read-only data hash table. Throughthe embodiment of the invention, the functions of automatically identifying the hot data, keeping the hot data cached in the memory for a long time, automatically identifying cold data, persisting the cold data to the disk and the like can be realized, the memory resource is saved, and the memory and the disk space are effectively utilized.

Description

technical field [0001] The invention relates to the technical field of databases, in particular to a maintenance method, device and mobile terminal of a data storage system. Background technique [0002] In the Internet industry, in the entire system, frequently-operated data often only accounts for a small part of the overall data, and this small part of data is called hot data. However, the operational efficiency of this small portion of data often affects the throughput, stability, and user experience of the entire system. [0003] How to efficiently operate (add, delete, modify, and check) these hot data has always been a pursuit in the field of data storage technology. Moreover, for traditional databases, because the design needs to provide various complex query functions, the concurrent query performance of a single database is not high, and it is not very suitable for direct use in high-concurrency scenarios. [0004] In the existing technology, a layer of cache is ...

AI Technical Summary

Problems solved by technology

[0005] The invention discloses a maintenance method, device and mobile terminal of a data storage system to solve the problem of a large amount of cold data in the data storage system in the prior art and a waste of memory resources

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