On 2/19/16 3:09 PM, Tom Lane wrote:
> I see no need for an additional mechanism. Just watch pg_control until
> you see DB_IN_PRODUCTION state there, then switch over to the same
> connection probing that "pg_ctl start -w" uses.
Here is a patch set around that idea.
The subsequent discussion mentioned that there might still be a window
between end of waiting and when read-write queries would be accepted. I
don't know how big that window would be in practice and would be
interested in some testing and feedback.
