Just for the records, I asked here the same question and got some replies:
https://dba.stackexchange.com/questions/186045/how-do-i-prevent-changes-to-my-database
Am 11.09.2017 um 15:25 schrieb Thomas Güttler:
> I did a stupid mistake. I run the final pg_dumpall without switching to single-user-mode first.
>
> With "final" I mean that the dump should be transferred to a different machine. After the dump
> the old machine was shut down forever.
>
> My mistake was that I stopped the services, but one process was still alive and this process
> inserted to the database after pg_dumpall has started.
>
> I guess I am not the first one who did this stupid mistake.
>
> What do you think? Wouldn't it be polite to add a note about this topic to the docs?
>
> Here are the docs for pg_dumpall: https://www.postgresql.org/docs/current/static/app-pg-dumpall.html
>
> How could the wording look like? I am not a native speaker ....
>
> Or do you have a better/different idea?
>
> Regards,
> Thomas Güttler
>
>
--
Thomas Guettler http://www.thomas-guettler.de/
I am looking for feedback: https://github.com/guettli/programming-guidelines
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