Обсуждение: postmaster and postgres options assimilation

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postmaster and postgres options assimilation

От
Peter Eisentraut
Дата:
I've looked at the issue of assimilating the options of postmaster and 
postgres, which has been mentioned now and then over the years.  Basically, 
we have five conflict cases that need to be resolved by breaking one or the 
other, namely:

-N   postmaster: max_connections   postgres: do not end command at newline
-o   postmaster: postgres options   postgres: output file
-p   postmaster: port number   postgres: internal use
-S   postmaster: silent mode   postgres: work_mem
-s   postmaster: use SIGSTOP on backend crash   postgres: statistics

Renaming the postgres side of -N, -o, -p, and -s might not really do any harm, 
but the -S option used to be very popular on the postgres command-line via -o 
from the postmaster, so I'm afraid that this might break existing start 
scripts.

Does anyone have suggestions about resolving these conflicts, or should we 
just forget about this issue altogether?


Re: postmaster and postgres options assimilation

От
Tom Lane
Дата:
Peter Eisentraut <peter_e@gmx.net> writes:
> -S
>     postmaster: silent mode
>     postgres: work_mem

> Renaming the postgres side of -N, -o, -p, and -s might not really do
> any harm, but the -S option used to be very popular on the postgres
> command-line via -o from the postmaster, so I'm afraid that this might
> break existing start scripts.

Actually I'd vote for renaming the silent-mode switch.  That's pretty
well deprecated anyway isn't it?  I've certainly not seen it used in
start scripts.

Similarly, I think it would be less likely to cause problems if you
renamed postmaster -s (SIGSTOP) than postgres -s.  I can't imagine
that anyone is using postmaster -s in the field.

> Does anyone have suggestions about resolving these conflicts, or should we 
> just forget about this issue altogether?

I don't think we should let the risk of breaking a few start scripts
dissuade us from cleaning up this mess.
        regards, tom lane