Please don't top-post, it makes it hard to follow the discussion. On Thu, Apr 02, 2020 at 03:52:56PM +0530, Tejaswini GC wrote: > > I'm in touch with our hosting team to get more information for your queries. > As of now I can share these details. > We did analyze on the DB, but not the vacuum, > We are using AWS RDS. > > Please help me with these queries as well. > > 1) Will the process change if we use AWS RDS. No idea, that's a question you should ask them. > 2) What kind of vacuum should be done on the DB, as there are many types of > vacuum. A regular vacuum, as in: VACUUM ANALYZE in all your databases. > On Thu, Apr 2, 2020 at 2:17 PM Julien Rouhaud <rjuju123@xxxxxxxxx> wrote: > > > Hi, > > > > On Thu, Apr 02, 2020 at 03:52:25AM +0000, PG Bug reporting form wrote: > > > The following bug has been logged on the website: > > > > > > Bug reference: 16334 > > > Logged by: Tejaswini GC > > > Email address: tejaswini.gc@xxxxxxxxxxxxx > > > PostgreSQL version: 10.10 > > > Operating system: Centos 7 > > > Description: > > > > > > First of all, this is not a bug. You should have instead started a > > discussion > > on pgsql-general or pgsql-performance. I'm redirecting the discussion on > > -performance. > > > > > > > We have upgraded our database into version 10.10. > > > > > > How did you upgrade? > > > > > > > After upgrading we could see that the system performance is bad , and > > one of > > > the applications linked to it via web service is not working. > > > > > > Do you have any errors in the postgres logs? > > > > > > > During this upgrade we have not done any code changes either on the > > > application side or on our ERP side. > > > > > > We are trying to debug everything from application perse, but till now > > we do > > > not have any lead. > > > > > > Can you tell us are there any measures that we need to take after > > upgrade. > > > > > > It depends on how you did the upgrade. If you used pg_upgrade, did you > > run the > > generated script as documented in step 13 at > > https://www.postgresql.org/docs/current/pgupgrade.html? > > > > Otherwise, at least a database-wide VACUUM ANALYZE on every database is the > > bare minimum to run after an upgrade. > >