Re: [PERFORM] 2 server with same configuration but huge difference in performance

On Tue, Aug 1, 2017 at 6:41 AM, Sumeet Shukla <sumeet.k.shukla@gmail.com> wrote:
> Hi,
>
> I have 2 PG servers with same h/w and configuration and they are not in
> replication.
>
> On server A it takes 20 minutes to execute the script.
> On server B it takes more than 20 hours. (Seems to be stuck with create
> index and and create foreign key steps)
>
> Any guidance to troubleshoot this would be highly appreciated.

There's lots of areas where you could be running into problems. I
suggest reading this wiki page on reporting performance problems.
It'll help you gather more evidence of where and what the problem is.

https://wiki.postgresql.org/wiki/Guide_to_reporting_problems