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Questions tagged [autovacuum]

Postgres Autovacuum Daemon

PostgreSQL has an optional but highly recommended feature called autovacuum, whose purpose is to automate the execution of VACUUM and ANALYZE commands. When enabled, autovacuum checks for tables that have had a large number of inserted, updated or deleted tuples. These checks use the statistics collection facility; therefore, autovacuum cannot be used unless track_counts is set to true. In the default configuration, autovacuuming is enabled and the related configuration parameters are appropriately set.

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PostgreSQL AutoVacuum does not work on Table1 during long running transaction on Table2

I have two tables: Table1 and Table2. If there is long running query : Select * from Table2; will it affect AutoVacuum process on Table1 also?
Ritesh Modi
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Postgresql autovacuum partitioned table

PostgreSQL 9.5.2 RDS in AWS select name,setting from pg_settings where name like '%vacuum%' order by name; name | setting -------------------------------------+----------- autovacuum | on …
Evelyn Dibben
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Postgresql autovacuum to prevent wraparound stuck on corrupt table

I have a process running that can not be killed safely: autovacuum: VACUUM public.mytable (to prevent wraparound) This table has been cleared (aside from some entries that can not be deleted due to the table's corruption during a hardware issue) and…
Stephen Kennedy
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Postgresql 9.3 Autovacuum not keeping up despite aggressive settings

Trying to get Postgresql to keep tables a lot cleaner however even after tweaking resource limits it doesn't seem to be keeping up hardly at all. Even after setting ALTER TABLE veryactivetable SET (autovacuum_vacuum_threshold = 10000); the…
Toomuchcode
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auto vacuum/vacuum not releasing dead rows in PostgreSQL 9.6

All, Please suggest here, auto vacuum/vacuum is not releasing the dead rows for a table in postgreSQL 9.6 version, can anyone help what needs to be checked here or is there any parameter tune to remove dead rows. Regards, Varun
varun kamal
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org.postgresql.util.PSQLException: Error could not open file "base/16384/19048": No such file or directory

Few of the tables and indexes are bloated though auto vacuum has enables. Two reclaim the space vacuum, I have ran vacuum full on the larger tables and also performed reindex on the indexes which are in larger size. Now the size of the database is…
Raghavendra
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Postgres AUTO_VACUUM (to prevent wrap-around) manually activating

Running postgres 9.6, big data table lots of transactions occurring on table. After every 100,000 changes (or so) a VACUUM FREEZE is run against the table. My understanding was that this would do the same as the AUTO_VACUUM (to prevent wrap-around)…
notzippy
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PostgreSQL select a frequently updated row from a small table

I'm using PostgreSQL 9.6 (Ubuntu 16.04) and I have a small table T of about 10k rows, where each row is updated 2 times per minute in peak times (something like UPDATE T SET c1 = ?, c2 = ? WHERE id = ?). Futhermore, this is the only update operation…
Diogo M. Santana
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Postgresql, Rails - could not fork autovacuum worker process: Resource temporarily unavailable

This is happening to me while in my local environment, Mac OSX, every time I start my server - puma - and workers - resque. The logs don't say anything helpful, just a repeated, "could not fork autovacuum worker process: Resource temporarily…
Jack Rothrock
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what is the default value in reloptions that ran autovacuum is running

I have checked table in Postgres server. SELECT reloptions FROM pg_class WHERE relname = 'log_xxx_table'; I guessed that return data is "autovacuum_enabled = true" but return data is null. This table have vacuum log ran autovacuum. default…
Cholho Lee
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Launch autovaccum automatically

Im new using posgtresql, i want to do an autovaccum when dead_rows are high. How can i do it automatically. Thank you,
dsp
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How to Stop Analyze in PostgreSQL Auto Vaccume

Auto Vacuum executes Vacuum and Analyze when the threshold is exceeded. The threshold values are as follows: autovacuum_vacuum_threshold + autovacuum_vacuum_scale_factor * rows autovacuum_analyze_threshold + autovacuum_analyze_scale_factor *…
chihiro
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Tuning autovacuum to run when database schema changes?

Whenever i upgrade my database schema from software(code) via multiple migrations, some database operations takes lot of time to complete. I understood pgstats that, something was messed up and query plan has got modified. The same operations will…
vinmm
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Is Autovacuum global setting applied to all tables?

I have autovacuum globally enabled, sql query: select * from pg_settings where category like 'Autovacuum' shows that autovacuum setting is "on". Does that mean all tables in the database will be subjected to autovacuum periodically, or I need to…
Tomasz Zadora
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