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 it works…
Transaction log (WAL) files will be written on the master. Setting wal_level to archive ensures that we collect all of the changed data and that WAL is never optimized away. WAL is sent from the master to the archive using archive_command and, from there, the standby reads WAL files using restore_command. Then, it replays the changes.
The archive_command is executed when a file becomes full or an archive_timeout number of seconds has passed since any user inserted change data into the transaction log. If the server does not write any new transaction log data for an extended period, then files will switch every checkpoint_timeout seconds. This is normal and not a problem.
The preceding configuration assumes that the archive is ...
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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.