There is a partial fix in the 1.4.5-1+deb6u1 Version.
It seems to be from this site, (in german)
http://blog.nevalon.de/de/wie-kann-ich-mehrere-instanzen-von-memcached-auf-einem-server-laufen-lassenhow-can-i-run-multiple-instances-of-memcached-on-one-server-20090729
It's just missing a patch to /usr/share/memcached/scripts/start-memcached
26,30d25
if (scalar(@ARGV) == 2) {
$etcfile = shift(@ARGV);
$pidfile = shift(@ARGV);
}
With this in place running multipl instances works fine.
config are kept in /etc/memcached_*.conf.
Best regards,
Andreas