Method and device for data reading and writing on basis of key-value buffer

Abstract

The invention discloses a method and device for data reading and writing on the basis of key-value buffer. The method includes: setting a primary buffer and secondary buffers buffering data in a key-value mode, setting that secondary buffers obtain synchronous updating data from the primary buffer according to a set synchronous cycle; receiving data requests sent by clients, outputting the data requests to the selected secondary buffer if the data requests are data reading requests, otherwise outputting the data requests to the primary buffer; receiving data request responses retuned from the primary buffer or data reading request responses returned from the primary buffers, and forwarding the data request responses and the data reading request responses to the corresponding clients; and monitoring state of the primary buffer and the secondary buffers, selecting the secondary buffers to send property change instructions after faults of the primary buffer are monitored, and switching the secondary buffers to the primary buffer according to the property change instructions. According to the method and device for the data reading and writing on the basis of the key-value buffer, the clients can use the buffers transparently, do not need to care about whether a single buffer breaks down, and can improve data reading and writing efficiency of the buffers.

Description

technical field [0001] The invention relates to data cache processing technology, in particular to a method and device for reading and writing data based on key-value pair (KV, Key-Value) cache. Background technique [0002] With the development of digital TV technology, the number of customers served by the smart TV system is increasing day by day. In order to improve the efficiency of data transmission (reading and writing) in the smart TV system and improve the concurrent performance of the smart TV system, key-value pair (KV, Key-Value) caching technology is generally used. KV caching technology is a widely used storage technology today. Through The hotspot data is stored in the memory of the smart TV system, and the hash (Hash) index method is used to improve the read and write access speed of the data, which can greatly improve the concurrent performance and transmission efficiency of the smart TV system. However, since the cache technology stores data in the memory, ...

AI Technical Summary

Problems solved by technology

However, the data read and write business services are provided to the client through the main cache, and the slave cache is only used as a backup cache. The load is heavy, which leads to the load imbalance between the main cache and the slave cache, which can easily cause the congestion of the main cache and reduce the data read and write efficiency of the main cache; further, when the main cache fails and fails, the slave cache that needs to be upgraded The device sends the service address update information containing the slave buffer to each client in the smart TV system, so that the client can update the settings to communicate with the upgraded slave buffer, so as not to interrupt the data reading and writing business service

Due to the large number of clients served by the smart TV system, the resource overhead required to send the service address update information is large; moreover, the client needs to perform update settings according to the service address update information received including the upgraded slave buffer, and it is necessary for the master From the structure of the buffer to continuously build and change the connection, the process is relatively complicated, and transparent connection cannot be achieved

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