MySQL-Concrete analysis of two architectural methods to improve Replication performance

1. Architecture design 1

1. Master-slave Service servers can use different storage engines. InnoDB is used on the Master, taking advantage of advanced features such as transactions and row-level locks. MyISAM is used on the Slave, which has better read performance, saves memory, and is easy to back up. You can also use different data types, such as varchar on the Master and char on the Slave. This not only saves space, but also makes use of MyISAM's static table features. 2. In the M-S-Muti Slave solution, the relay slave can also use the BlackHole storage engine. The BlackHole storage engine only records logs and does not write data. Using this feature can greatly improve the performance of relay logs. However, this solution does not support Replication under GTIDs, because BlackHole can only be used with binary logs in StateMent format, and both Row and Mixed formats are not available. 3. In the design of read-write separation, the master-slave server can adopt different
index
solutions. Master can only retain indexes such as primary keys or unique indexes that guarantee data relationships. And Salve does index optimization for query.
2. Architecture design 2

Let frequent updates and real-time data queries be placed on the Master. Then through persistence

Session

, the user who made the modification can see the result first, and others will wait for synchronization to view Replication.

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