April 2018
Intermediate to advanced
508 pages
15h 22m
English
Content preview from PostgreSQL 10 High Performance - Third Edition
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autovacuum is running even though it was turned off
If your table is approaching transaction ID wraparound, autovacuum will process it regardless of whether it's turned on or off globally or for that table. This is one of the many reasons why running with autovacuum off, instead of tuning it to run smoothly all the time, is dangerous. If you haven't done that tuning, and just turned it off instead, when autovacuum does start anyway to deal with wraparound it will not be adjusted appropriately to avoid interference with activity going on.
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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.