
PostgreSQL 14 Administration Cookbook
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This recipe covers both the VACUUM
command and autovacuum
, which I refer to collectively as vacuums (non-capitalized).
If you're currently waiting for a long-running vacuum (or autovacuum
) to finish, go straight to the How to do it... section.
If you've just had a long-running vacuum complete, then you may want to think about setting a few parameters for next time, so read the How it works… section.
Let's watch what happens when we run a large VACUUM
. Don't run VACUUM FULL
, because it runs for a long time while holding an AccessExclusiveLock
on the table. Ouch.
First, locate which process is running this VACUUM
by using the pg_stat_activity
view to identify the specific pid
(34399
is just an example).
Repeatedly execute the following query to see the progress of the...
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