[OpenAFS] Server upgrade time; which is the right way?
Thu, 25 Oct 2007 09:02:15 +0200 (MEST)
> There seems to be a conflict of opinions here on whether a rolling
> upgrade like this is either a) a non-issue, people do it all the time;
> or b) a huge mistake that will inflict serious pain and sleepless
> nights because everyone knows we should be taking everything down at
> once for a major version upgrade like this.
If different database server versions would generate pain, I would
had to do something about the following a long time ago...
$ /usr/openafs/sbin/rxdebug anna 7003 -v
Trying 18.104.22.168 (port 7003):
AFS version: OpenAFS 1.4.0 built 2005-11-15
$ /usr/openafs/sbin/rxdebug hokkigai 7003 -v
Trying 22.214.171.124 (port 7003):
AFS version: OpenAFS 1.2.11 built 2004-01-12
$ /usr/openafs/sbin/rxdebug crab 7003 -v
Trying 126.96.36.199 (port 7003):
AFS version: OpenAFS 1.4.2 built 2006-11-09
I vaguely remember a "take everything down" scenario necessary many
many years ago.