On Wed, Sep 29, 2010 at 3:09 PM, Dimitri Fontaine
<dfontaine@hi-media.com> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> On Wed, Sep 29, 2010 at 10:02 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>>> I think keeping the status information in a transient text file may
>>> still be a good design choice. If you push it into pg_control it will
>>> be impossible to modify by hand.
>>
>> It could be done with a trivial tool, though.
>
> pg_ctl standby … ?
Well, no. I mean, you'd want some kind of pg_ctl utility for starting
in master mode vs. slave mode, and for promoting a running slave to
master.
pg_ctl start -m master
pg_ctl start -m slave
pg_ctl promote
But that's not what Tom is talking about, I don't think: you might
also want a way to explicitly whack the flag in pg_control around.
That would probably be along the lines of pg_resetxlog. I'm not sure
how much use case there is for such a thing, but if it's needed it's
certainly wouldn't be hard to write.
--
Robert Haas
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