Multi-Master Replication Solutions for PostgreSQL

Due to the immense generation of data, scalability has become one of the hottest topics in the field of databases. Scalability can be achieved horizontally or vertically. Vertical scalability means adding more resources/hardware to existing nodes to enhance the capability of the database to store and process more data, for example, adding a new process, memory, or disk to an existing node. Every DBMS engine improves the capability of vertical scalability by improving the locking/mutex mechanisms and the concurrency by which it can use the newly added resources more effectively. The database engines provide configuration parameters, which helps to utilize the available hardware resources more effectively.

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