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

[Keith <keith@xxxxxxxxxxx>]

On Tue, Aug 1, 2017 at 9:41 AM, Sumeet Shukla <sumeet.k.shukla@xxxxxxxxx> 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.

Thanks & Regards,

Sumeet Shukla

Check for long running queries on the server that is taking longer. If it's things like CREATE INDEX or ALTER TABLE statements that are being blocked, a transaction running on the table involved will cause those commands to be held until those transactions complete.

If it's normal read/write queries to that are taking longer, ensure the database statistics are up to date by running an analyze.

Keith