backend_connect() is broken in 2.3.8

[Gabor Gombas]

On Fri, Jul 27, 2007 at 12:18:14PM -0400, Chaskiel M Grundman wrote:

> I asked the developers why the code was there, because on systems where 
> "servername" points at an alias instead of a single name, the bind tends to 
> fail and spams the syslog. These extra error messages confused debugging 
> efforts on more than one occasion. It appears that nobody knew, and so the 
> code was pulled out. if the bind is restored, I would prefer that it use a 
> dedicated config parameter, and not re-use servername

A separate config parameter that defaults to the servername if the
latter is set is fine.

> I would only expect this to happen if you have asymmetric routing. (i.e. B 
> refuses to route along the inverse of the path that A routes to B)

No routing, just basic firewalling: the replica only accepts connections
from the master's IP address. But the machine hosting the master also
runs other services on other IP addresses.

Gabor

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     MTA SZTAKI Computer and Automation Research Institute
                Hungarian Academy of Sciences
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