Comment 1 for bug 1879798

### Further observations ####

I am able to partially reproduce the problem.

Bundle used: http://paste.ubuntu.com/p/myxQJnJvyn/

$ openstack zone create --email <email address hidden> example.com.
$ rndc showzone example.com.

zone "example.com" { type slave; file "slave.example.com.f3e3fdaa-857e-4786-afef-2b4cb2d03357"; masters { 10.5.0.10 port 5354; 10.5.0.41 port 5354; 10.5.0.31 port 5354; }; };

$ juju remove-unit designate/0 designate/1 designate/2 --force
removing unit designate/0
removing unit designate/1
removing unit designate/2

root@juju-54f98f-1879798-4:/home/ubuntu# ack master /var/log/syslog
May 27 19:21:20 juju-54f98f-1879798-4 named[1505]: received control channel command 'addzone example.com { type slave; masters { 10.5.0.10 port 5354; 10.5.0.41 port 5354; 10.5.0.31 port 5354;}; file "slave.example.com.f3e3fdaa-857e-4786-afef-2b4cb2d03357"; };'
May 27 19:55:32 juju-54f98f-1879798-4 named[6653]: zone example.com/IN: refresh: timeout retrying without EDNS master 10.5.0.10#5354 (source 0.0.0.0#0)
May 27 19:55:47 juju-54f98f-1879798-4 named[6653]: zone example.com/IN: refresh: retry limit for master 10.5.0.10#5354 exceeded (source 0.0.0.0#0)
May 27 19:56:05 juju-54f98f-1879798-4 named[6653]: zone example.com/IN: refresh: retry limit for master 10.5.0.41#5354 exceeded (source 0.0.0.0#0)
May 27 19:56:23 juju-54f98f-1879798-4 named[6653]: zone example.com/IN: refresh: retry limit for master 10.5.0.31#5354 exceeded (source 0.0.0.0#0)

$ juju add-unit -n 3 designate

root@juju-54f98f-1879798-4:/home/ubuntu# ack addzone /var/log/syslog
May 27 19:21:20 juju-54f98f-1879798-4 named[1505]: received control channel command 'addzone example.com { type slave; masters { 10.5.0.10 port 5354; 10.5.0.41 port 5354; 10.5.0.31 port 5354;}; file "slave.example.com.f3e3fdaa-857e-4786-afef-2b4cb2d03357"; };'
May 27 19:21:20 juju-54f98f-1879798-4 named[1505]: added zone example.com in view _default via addzone

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(Continues).