public inbox for [email protected]
help / color / mirror / Atom feedFrom: Keith <[email protected]>
To: Sumeet Shukla <[email protected]>
Cc: pgsql-admin <[email protected]>
Cc: [email protected]
Subject: Re: 2 server with same configuration but huge difference in performance
Date: Tue, 1 Aug 2017 10:16:04 -0400
Message-ID: <CAHw75vveLeAga5_0t7ze=jMcJrX3796f9d9iLbWF2_yLyTxFBg@mail.gmail.com> (raw)
In-Reply-To: <CABUL134EOvvkqfoMYWQr05D+VjEVu0cuSHT8rtf-7b6QvGedXQ@mail.gmail.com>
References: <CABUL134EOvvkqfoMYWQr05D+VjEVu0cuSHT8rtf-7b6QvGedXQ@mail.gmail.com>
List-Unsubscribe: <mailto:[email protected]?body=unsub%20pgsql-admin>
On Tue, Aug 1, 2017 at 9:41 AM, Sumeet Shukla <[email protected]>
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
reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: [email protected]
Cc: [email protected], [email protected], [email protected]
Subject: Re: 2 server with same configuration but huge difference in performance
In-Reply-To: <CAHw75vveLeAga5_0t7ze=jMcJrX3796f9d9iLbWF2_yLyTxFBg@mail.gmail.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox