Обсуждение: Proposal- GUC for max dead rows before autovacuum
To mitigate the need for per-table tuning of autovacuum configuration, I'd like to propose a new GUC for autovacuum_vacuum_threshold_max.
Currently, it seems that I can either set autovacuum_vacuum_scale_factor much smaller than default on tables with millions of rows, or set a value globally that means small tables are auto vacuumed rarely.
The default value for this new setting value could be -1 or 0 to disable the feature, or something like 100,000 perhaps so that tables with more than 500,0000 tuples are candidates for an autovacuum before they would with current default values.
On Tue, 2019-11-19 at 15:35 -0700, Michael Lewis wrote: > To mitigate the need for per-table tuning of autovacuum configuration, I'd like to propose a new GUC for autovacuum_vacuum_threshold_max. > > Currently, it seems that I can either set autovacuum_vacuum_scale_factor much smaller than default on tables with millionsof rows, > or set a value globally that means small tables are auto vacuumed rarely. > > The default value for this new setting value could be -1 or 0 to disable the feature, or something like 100,000 perhaps > so that tables with more than 500,0000 tuples are candidates for an autovacuum before they would with current default values. I think this is unnecessary. Usually you have problems only with a few tables, and it is no problem to set autovacuum parameters on these individually. Yours, Laurenz Albe