On Wed, Jan 22, 2025 at 10:18 PM Robert Pang <robertp...@google.com> wrote: > > On Wed, Jan 15, 2025 at 12:05 PM Andres Freund <and...@anarazel.de> wrote: > > > > If you have wal_recycle=true, this overhead will only be paid the first > > time a > > WAL segment is used, of course, not after recycling. > > Today, our pg_stat_wal view [1] does not report the no. of WAL > segments recycled. How about if we add a column to report it so users > can track how many WAL segments are recycled vs. created over a period > of time?
Maybe even add the full set of (recycled, created, deleted and zero-filled) so we have a full picture. And possible duplicate the set for "in the background" and "inline / stalling the production work" for the operations where it makes sense (created, zero-filled) > [1] > https://www.postgresql.org/docs/current/monitoring-stats.html#MONITORING-PG-STAT-WAL-VIEW > >
