Re: [Patch] ALTER SYSTEM READ ONLY

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Prabhat Sahu <prabhat(dot)sahu(at)enterprisedb(dot)com>
Cc: Amul Sul <sulamul(at)gmail(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, tushar <tushar(dot)ahuja(at)enterprisedb(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [Patch] ALTER SYSTEM READ ONLY
Date: 2020-07-16 13:10:45
Message-ID: CA+TgmoafRP8994FWQxk3rp+PiZEzMOvsoqWGy6XjrrPkRWL7Qg@mail.gmail.com
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On Thu, Jul 16, 2020 at 2:12 AM Prabhat Sahu <prabhat(dot)sahu(at)enterprisedb(dot)com>
wrote:

> Hi All,
> I was testing the feature on top of v3 patch and found the "pg_upgrade"
> failure after keeping "alter system read only;" as below:
>

That's expected. You can't perform a clean shutdown without writing WAL.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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