Re: Syncrep and improving latency due to WAL throttling
Tomas Vondra <tomas.vondra@enterprisedb.com>
From: Tomas Vondra <tomas.vondra@enterprisedb.com>
To: Andres Freund <andres@anarazel.de>,
Jakub Wartak <jakub.wartak@enterprisedb.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>,
Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: 2023-01-28T00:37:49Z
Lists: pgsql-hackers
On 1/27/23 22:19, Andres Freund wrote: > Hi, > > On 2023-01-27 12:06:49 +0100, Jakub Wartak wrote: >> On Thu, Jan 26, 2023 at 4:49 PM Andres Freund <andres@anarazel.de> wrote: >> >>> Huh? Why did you remove the GUC? >> >> After reading previous threads, my optimism level of getting it ever >> in shape of being widely accepted degraded significantly (mainly due >> to the discussion of wider category of 'WAL I/O throttling' especially >> in async case, RPO targets in async case and potentially calculating >> global bandwidth). > > I think it's quite reasonable to limit this to a smaller scope. Particularly > because those other goals are pretty vague but ambitious goals. IMO the > problem with a lot of the threads is precisely that that they aimed at a level > of generallity that isn't achievable in one step. > +1 to that -- Tomas Vondra EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company