February 2020
Intermediate to advanced
734 pages
38h 13m
English
Content preview from PostgreSQL 12 High Availability Cookbook - Third Edition
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We cannot stress the importance of this section strongly enough. Some may consider an entire extra data center as optional due to the cost. It is not. Others may think a total of three servers for every primary system is too much maintenance overhead. Again, it is not. The price of a few servers must be weighed against the future of the company itself; it is the cost of admission into the world of high availability.
By the time we begin utilizing failover nodes, or any replicas in a separate data center, the damage has already been done. In the absence of these resources, a database crash can result in hours or even days of unavailability depending on the size of our database. This can exponentially compound the effects of ...
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