Hi On Mon, Apr 26, 2021 at 3:44 PM Greg Bryant <gregabry...@hotmail.com> wrote:
> Thanks for the reply. > > > > I saw that as an option but I don’t really want to have to go modify every > pgAgent job after a switch-over to the replica (not that I have that many > jobs or that PostgreSQL hardly ever fails). I’m more concerned that > another administrator doesn’t know that all the jobs would need modified if > a switch-over did occur. > > > > Could pgAgent itself be modified to have an ‘enable on replica’ toggle > similar to the ‘enable’ toggle in the job setup? I’m not sure you’d ever > want to run a pgAgent job on a replica but someone might want to (but the > tables themselves are being updated by the master via replication so how > would that work?). > Not easily - there might be multiple instances on the box, or there might be none. pgAgent doesn't actually care if there's a Postgres instance on the box it's running on right now, which is by design. > > > I guess I can modify the jobs to check if the server is in recovery; > pgAgent jobs do fail on the replicas since the database is in read-only; > it’s just some jobs run bash scripts (I’ve set them up to check if the > database is in recovery already). > Yes, that's probably the only way for non-SQL jobs. > > > Thanks, > > > > Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for > Windows 10 > > > > *From: *Dave Page <dp...@pgadmin.org> > *Sent: *Monday, April 26, 2021 4:08 AM > *To: *Greg Bryant <gregabry...@hotmail.com> > *Cc: *pgadmin-support@lists.postgresql.org > *Subject: *Re: pgAgent Jobs on replica > > > Hi > > On Sat, Apr 24, 2021 at 6:47 PM Greg Bryant <gregabry...@hotmail.com> > wrote: > >> I have several pgAgent jobs that run on the ‘master’ database. They fail >> on the replica since it’s a ‘read-only’ connection. I’m creating a couple >> jobs to run some bash scripts but I don’t want them to run on the replica >> server. >> >> >> >> Is there a way to prevent pgAgent jobs from executing on the replica >> server? Wrap all the jobs in an ‘if’ statement to check if the server is >> in_recovery? Disable the daemon on the replica server? >> >> >> >> I’m currently running PostgreSQL 11 with pgAgent 4. >> > > You can use the Host Agent field to specify a particular node that a job > should run on - see > https://www.pgadmin.org/docs/pgadmin4/5.2/pgagent_jobs.html > > -- > Dave Page > Blog: https://pgsnake.blogspot.com > Twitter: @pgsnake > > EDB: https://www.enterprisedb.com > > -- Dave Page Blog: https://pgsnake.blogspot.com Twitter: @pgsnake EDB: https://www.enterprisedb.com
