Master-slave time delay monitoring method and device suitable for redis, and storage medium

Abstract

The embodiment of the invention discloses a master-slave time delay monitoring method and a master-slave time delay monitoring device suitable for redis and a storage medium. The method comprises thefollowing steps that a set of key$n is written into a master library Master of redis, the key$n at least comprises keys from 0 to 59, and each key corresponds to one $value; updating the value S1 of the key corresponding to the current second number of the master library Master, and querying the value S2 of the key of the slave library Slave under the same key at the same time; and determining a current master-slave synchronization time delay difference value S3 according to the S1 and the S2. By adopting the method and the system, the redis master-slave database servers are synchronized by adopting a unified time server, so that the system time can be ensured to be unified, and the delay problem between the redis master-slave databases and the master-slave availability can be more intuitively expressed according to the judgment of the system time.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a master-slave delay monitoring method, device and storage medium suitable for redis. Background technique [0002] The principle of redis master-slave synchronization is that after Slave starts and connects to Master, it will actively send a SYNC command. After that, the Master will start the background saving process and collect all received commands for modifying the data set. After the background process is executed, the Master will transfer the entire database file to the Slave to complete a complete synchronization. After the Slave server receives the database file data, it saves it and loads it into the memory. After that, the Master continues to transmit all the collected modification commands and new modification commands to the Slaves in turn, and the Slave will execute these data modification commands this time, so as to achieve the final data synchronizatio...

AI Technical Summary

Problems solved by technology

[0003] After the above synchronization is completed, the monitoring platform cannot be used to monitor the master-slave delay and master-slave availability of the master and slave in real time.

Currently on the market, the availability of the slave is judged by checking the master_link_status status of the slave, and the delay of the slave is checked by master_last_io_seconds_ago. Since the delay of the master-slave synchronization cannot be monitored in real time, the accuracy of the computer processing data is affected when the network is abnormal.

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