Re: Autovacuum Problem
От | Achilleas Mantzios |
---|---|
Тема | Re: Autovacuum Problem |
Дата | |
Msg-id | 01f04a0e-5013-605d-418c-acba834c3609@matrix.gatewaynet.com обсуждение исходный текст |
Ответ на | Re: Autovacuum Problem (Kein Name <muelladdi@gmail.com>) |
Список | pgsql-general |
On 03/04/2018 10:54, Kein Name wrote:
I tuned the autovacuum parameters now for the critical tables, to have it run more often and using greater ressources while doing so.... but I am unsure if this helps with the bloating.Sadly I have no control and knowledge whatsoever over/about the application.> Why would you want that? Do you have any control over the application? Any "special" patterns used in the app?Drive is running full :/
You could try to setting log_statement=all for a (short) period with a typical "heavy-ish" write activity to know what the app is doing.
IMHO you must prepare for a larger storage. After that you should monitor disk usage periodically to see if usage is stabilized or at least if the increase rate drops.
2018-04-03 9:39 GMT+02:00 Achilleas Mantzios <achill@matrix.gatewaynet.com>:On 03/04/2018 10:00, Kein Name wrote:Why would you want that? Do you have any control over the application? Any "special" patterns used in the app?> VACUUM <> VACUUM FULLHmmmm then when is the space released to the system when the manual VACUUM FULL run is not done? Any way to "force" this?
> Normally running VACUUM via autovacuum should help reuse free space but not actually return it to the filesystem / OS (unless it happens to be the last blocks in the data file(s)).
> Ppl in normal/average type of installations/workloads no longer (since 8.2) run VACUUM (or VACUUM FULL) by hand, except in extra ordinary cases where e.g. need for free space is urgent.2018-04-03 8:49 GMT+02:00 Achilleas Mantzios <achill@matrix.gatewaynet.com>: On 03/04/2018 09:36, Kein Name wrote:However no space seems to be freed to the system.
Is there any way a bloody newbie can debug this behaviour?
VACUUM <> VACUUM FULL
Normally running VACUUM via autovacuum should help reuse free space but not actually return it to the filesystem / OS (unless it happens to be the last blocks in the data file(s)).
Ppl in normal/average type of installations/workloads no longer (since 8.2) run VACUUM (or VACUUM FULL) by hand, except in extra ordinary cases where e.g. need for free space is urgent.--Any help is appreciated!
Thanks
Stefan
Achilleas Mantzios
IT DEV Lead
IT DEPT
Dynacom Tankers Mgmt
-- Achilleas Mantzios IT DEV Lead IT DEPT Dynacom Tankers Mgmt
-- Achilleas Mantzios IT DEV Lead IT DEPT Dynacom Tankers Mgmt
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