Re: when the startup process doesn't (logging startup delays)

On Wed, Jul 28, 2021 at 5:24 AM Nitin Jadhav
<nitinjadhavpostgres(at)gmail(dot)com> wrote:
> I also agree that this is the better place to do it. Hence modified
> the patch accordingly. The condition "!AmStartupProcess()" is added to
> differentiate whether the call is done from a startup process or some
> other process. Actually StartupXLOG() gets called in 2 places. one in
> StartupProcessMain() and the other in InitPostgres(). As the logging
> of the startup progress is required only during the startup process
> and not in the other cases,

The InitPostgres() case occurs when the server is started in bootstrap
mode (during initdb) or in single-user mode (postgres --single). I do
not see any reason why we shouldn't produce progress messages in at
least the latter case. I suspect that someone who is in the rather
desperate scenario of having to use single-user mode would really like
to know how long the server is going to take to start up.

Perhaps during initdb we don't want messages, but I'm not sure that we
need to do anything about that here. None of the messages that the
server normally produces show up when you run initdb, so I guess they
are getting redirected to /dev/null or something.

So I don't think that using AmStartupProcess() for this purpose is right.

--
Robert Haas
EDB: http://www.enterprisedb.com