Re: Berserk Autovacuum (let's save next Mandrill)
Justin Pryzby <pryzby@telsasoft.com>
From: Justin Pryzby <pryzby@telsasoft.com>
To: David Rowley <dgrowleyml@gmail.com>
Cc: Laurenz Albe <laurenz.albe@cybertec.at>, Masahiko Sawada <masahiko.sawada@2ndquadrant.com>, Tomas Vondra <tomas.vondra@2ndquadrant.com>, Amit Kapila <amit.kapila16@gmail.com>, Masahiko Sawada <sawada.mshk@gmail.com>, Darafei Komяpa Praliaskouski <me@komzpa.net>, Andres Freund <andres@anarazel.de>, pgsql-hackers@lists.postgresql.org, Alvaro Herrera <alvherre@2ndquadrant.com>, Michael Banck <mbanck@gmx.net>
Date: 2020-03-13T12:00:56Z
Lists: pgsql-hackers
On Wed, Mar 11, 2020 at 10:32:47AM +1300, David Rowley wrote:
> 2. The new feature can be completely disabled. This might be very
> useful for people who suffer from auto-vacuum starvation.
On Thu, Mar 12, 2020 at 08:28:05PM +1300, David Rowley wrote:
> Yes, but in particular so it can be completely disabled easily.
How is it disabled ? By setting scale_factor=100 ?
+ {
+ "autovacuum_vacuum_insert_scale_factor",
+ "Number of tuple inserts prior to vacuum as a fraction of reltuples",
+ RELOPT_KIND_HEAP | RELOPT_KIND_TOAST,
+ ShareUpdateExclusiveLock
+ },
+ -1, 0.0, 100.0
Note, vacuum_cleanup_index_scale_factor uses max: 1e10
See 4d54543efa5eb074ead4d0fadb2af4161c943044
--
Justin
Commits
-
Further improve stability fix for partition_aggregate test.
- 18d85e9b8a2b 13.0 landed
-
Improve stability fix for partition_aggregate test.
- 7cb0a423f914 13.0 landed
-
Attempt to stabilize partitionwise_aggregate test
- cefb82d49e21 13.0 landed
-
Fix race condition in statext_store().
- fe3036527a1f 13.0 landed
- 6c426cd43790 12.3 landed
-
Attempt to fix unstable regression tests, take 2
- 24566b359d09 13.0 landed
-
Attempt to fix unstable regression tests
- 2dc16efedc76 13.0 landed
-
Trigger autovacuum based on number of INSERTs
- b07642dbcd8d 13.0 landed
-
Fix upper limit for vacuum_cleanup_index_scale_factor
- 4d54543efa5e 11.0 cited