Re: [Patch] ALTER SYSTEM READ ONLY - Mailing list pgsql-hackers

From Michael Banck
Subject Re: [Patch] ALTER SYSTEM READ ONLY
Date
Msg-id 5ef599a2.1c69fb81.f8b1d.dd8a@mx.google.com
Whole thread Raw
In response to Re: [Patch] ALTER SYSTEM READ ONLY  (tushar <tushar.ahuja@enterprisedb.com>)
Responses Re: [Patch] ALTER SYSTEM READ ONLY  (Amul Sul <sulamul@gmail.com>)
List pgsql-hackers
Hi,

On Wed, Jun 24, 2020 at 01:54:29PM +0530, tushar wrote:
> On 6/22/20 11:59 AM, Amul Sul wrote:
> > 2. Now skipping the startup checkpoint if the system is read-only mode, as
> > discussed [2].
> 
> I am not able to perform pg_checksums o/p after shutting down my server in
> read only  mode .
> 
> Steps -
> 
> 1.initdb (./initdb -k -D data)
> 2.start the server(./pg_ctl -D data start)
> 3.connect to psql (./psql postgres)
> 4.Fire query (alter system read only;)
> 5.shutdown the server(./pg_ctl -D data stop)
> 6.pg_checksums
> 
> [edb@tushar-ldap-docker bin]$ ./pg_checksums -D data
> pg_checksums: error: cluster must be shut down
> [edb@tushar-ldap-docker bin]$

What's the 'Database cluster state' from pg_controldata at this point?


Michael

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