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

Sumeet Shukla <sumeet.k.shukla@gmail.com>

From: Sumeet Shukla <sumeet.k.shukla@gmail.com>
To: Scott Marlowe <scott.marlowe@gmail.com>
Cc: pgsql-admin <pgsql-admin@postgresql.org>, "pgsql-performance@postgresql.org" <pgsql-performance@postgresql.org>
Date: 2017-08-01T15:45:14Z
Lists: pgsql-performance
It seems that it is happening because of the way the database is created.
On an old database it runs perfectly fine or if I use the old DB as
template to create the new one, it  runs fine. But if I create a new DB
with same settings and permissions it hangs. I'm now trying to find the
difference between these 2 databases.

Thanks & Regards,
Sumeet Shukla


On Tue, Aug 1, 2017 at 9:05 PM, Scott Marlowe <scott.marlowe@gmail.com>
wrote:

> 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
>