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You're reading from  PostgreSQL 14 Administration Cookbook

Product typeBook
Published inMar 2022
PublisherPackt
ISBN-139781803248974
Edition1st Edition
Concepts
Databases
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Authors (2):
Simon Riggs
Simon Riggs
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Simon Riggs

Simon Riggs is the CTO of 2ndQuadrant, having contributed to PostgreSQL as a major developer and committer for 14 years. He has written and designed features for replication, performance, BI, management, and security. Under his guidance, 2ndQuadrant is now a leading developer of open source PostgreSQL, serving hundreds of clients in USA, Europe, and worldwide. Simon is a frequent speaker at many conferences on PostgreSQL Futures. He has worked as a database architect for 30 years.
Read more about Simon Riggs

Gianni Ciolli
Gianni Ciolli
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Gianni Ciolli

Gianni Ciolli is the Vice President for Solutions Architecture at EnterpriseDB (EDB). As a PostgreSQL consultant, he has driven many successful enterprise deployments for customers in every part of the globe.Gianni is respected worldwide as a popular speaker and trainer at many PostgreSQL conferences in Europe and abroad over the last 14 years. He has worked with free and open-source software since the 1990s as an active member of the community (Prato Linux User Group, and Italian PostgreSQL Users Group). Gianni has a Ph.D. in Mathematics from the University of Florence. He lives in London with his son. His other interests include music, drama, poetry and athletics.
Read more about Gianni Ciolli

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Managing streaming replication

Replication is great, provided that it works. Replication works well if it's understood, and it works even better if it's tested.

Getting ready

You need to have a plan for the objectives for each individual server in the cluster. Which standby server will be the failover target?

How to do it…

Switchover is a controlled switch from the primary to the standby. If performed correctly, there will be no data loss. To be safe, simply shut down the primary node cleanly, using either the smart or fast shutdown modes. Do not use the immediate mode shutdown because you will almost certainly lose data that way.

Failover is a forced switch from the primary node to a standby because of the loss of the primary. So, in that case, there is no action to perform on the primary; we presume it is not there anymore.

Next, we need to promote one of the standby nodes to be the new primary. A standby...

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PostgreSQL 14 Administration Cookbook
Published in: Mar 2022Publisher: PacktISBN-13: 9781803248974
© 2022 Packt Publishing Limited All Rights Reserved

Authors (2)

author image
Simon Riggs

Simon Riggs is the CTO of 2ndQuadrant, having contributed to PostgreSQL as a major developer and committer for 14 years. He has written and designed features for replication, performance, BI, management, and security. Under his guidance, 2ndQuadrant is now a leading developer of open source PostgreSQL, serving hundreds of clients in USA, Europe, and worldwide. Simon is a frequent speaker at many conferences on PostgreSQL Futures. He has worked as a database architect for 30 years.
Read more about Simon Riggs

author image
Gianni Ciolli

Gianni Ciolli is the Vice President for Solutions Architecture at EnterpriseDB (EDB). As a PostgreSQL consultant, he has driven many successful enterprise deployments for customers in every part of the globe.Gianni is respected worldwide as a popular speaker and trainer at many PostgreSQL conferences in Europe and abroad over the last 14 years. He has worked with free and open-source software since the 1990s as an active member of the community (Prato Linux User Group, and Italian PostgreSQL Users Group). Gianni has a Ph.D. in Mathematics from the University of Florence. He lives in London with his son. His other interests include music, drama, poetry and athletics.
Read more about Gianni Ciolli

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