Re: archive_command / single user mode

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От David G. Johnston
Тема Re: archive_command / single user mode
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Msg-id CAKFQuwacfuLDuBJwGgv6n6CvO24YQhTSiOfxmMiekeU88_++Gg@mail.gmail.com
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Ответ на archive_command / single user mode  (Christophe Pettus <xof@thebuild.com>)
Ответы Re: archive_command / single user mode  (Christophe Pettus <xof@thebuild.com>)
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On Mon, Aug 9, 2021 at 4:17 PM Christophe Pettus <xof@thebuild.com> wrote:
Does archive_command run in single user mode?  This isn't an actual situation at the moment, but for runbook / disaster planning purposes, I was curious.


Nope.

If I follow the source code correctly...main.c calls PostgresMain (postgres.c) which is basically a hybrid front-end/back-end standalone setup which, as far as I can tell, never launches the archiver.  The "else" PostmasterMain (postmaster.c) call in main.c, however, leads to ServerLoop which starts, and restarts if necessary, the archiver based upon the current state machine state (e.g., PM_RUN).

Skimming the imports for postgres.c likewise confirms an omission of pgarch.h ...

David J.

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