Sent: Tuesday, January 29, 2013 21:02
Subject: loopback or loopback which will connect?
Because all database access is local every connection is defined to 'localhost'.
This of course makes the code easily portable to other servers and means any changes to IP won't affect these connections.
Developers finally tried replacing loopback with 127.0.0.1 in the failing scripts. This worked. After fixing a few scripts, all seemed well.
A couple weeks later we took a full save and restored it to POWER7.
We decided to fall back to the POWER5 server which was still running.
So we simply shut down the IPV6 loopback since we weren't using IPV6 and had Never configured any of it.
1) Have others ran into this seemingly random connection failure problem with loopback while IPV6 is active?
2) A suggestion that if you are NOT using IPV6 turning it off to prevent that land-mine from being discovered.
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