May 2019
Intermediate to advanced
600 pages
20h 46m
English
book
PostgreSQL 11 Administration Cookbook
by Simon Riggs, Gianni Ciolli, Sudheer Kumar Meesala, Sheldon Strauch
Content preview from PostgreSQL 11 Administration Cookbook
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How to do it…
First, check whether data checksums are enabled:
postgres=# SHOW data_checksums ; data_checksums---------------- on(1 row)
If not, then we must regrettably stop here. We mentioned previously that this feature needs to be enabled before you need it; you shouldn't be surprised because the same is true for most business continuity capabilities, such as high availability or disaster recovery.
If data checksums are enabled, and you are taking a backup with pg_basebackup, then checksums are verified while pages are read from data files. Let's look at an example:
$ pg_basebackup -D backup2
If nothing goes wrong, then the backup finishes with no output—we know already that pg_basebackup operates by default in no news good news mode. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.