While I am working on pg_ctl, I saw this TODO item:
Have the postmaster write a random number to a file on startup that
pg_ctl checks against the contents of a pg_ping response on its initial
connection (without login)
This will protect against connecting to an old instance of the
postmaster in a different or deleted subdirectory.
http://archives.postgresql.org/pgsql-bugs/2009-10/msg00110.php
http://archives.postgresql.org/pgsql-bugs/2009-10/msg00156.php
Based on our new PQPing(), do we ever want to implement this or should I
remove the TODO item? It seems this would require a server connection,
which is something we didn't want to force pg_ctl -w to do in case
authentication is broken.
--
Bruce Momjian <br...@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ It's impossible for everything to be true. +
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