[2.3-rc1+develop-724924b] "Could not get the model status from the API: <nil>" on model destruction

[Dmitrii Shcherbakov]

Seems like a harmless extra message on model destruction.

juju status
Model Controller Cloud/Region Version SLA
default vmaas vmaas 2.3-rc1.1 unsupported

App Version Status Scale Charm Store Rev OS Notes
ubuntu 16.04 active 5 ubuntu jujucharms 10 ubuntu

Unit Workload Agent Machine Public address Ports Message
ubuntu/0 active idle 0 10.10.101.79 ready
ubuntu/1 active idle 1 10.10.101.78 ready
ubuntu/2* active idle 2 10.10.101.81 ready
ubuntu/3 active idle 3 10.10.101.80 ready
ubuntu/4 active idle 4 10.10.101.82 ready

Machine State DNS Inst id Series AZ Message
0 started 10.10.101.79 krnscf xenial default Deployed
1 started 10.10.101.78 xcgtpc xenial az3 Deployed
2 started 10.10.101.81 rynftc xenial az2 Deployed
3 started 10.10.101.80 yy3sgf xenial default Deployed
4 started 10.10.101.82 rw7fq3 xenial az3 Deployed

$ juju destroy-model default
WARNING! This command will destroy the "default" model.
This includes all machines, applications, data and other resources.

Continue [y/N]?
ERROR model destruction: aborted

$ juju destroy-model default
WARNING! This command will destroy the "default" model.
This includes all machines, applications, data and other resources.

Continue [y/N]? y
Destroying model
Waiting on model to be removed, 5 machine(s), 1 application(s)...
Waiting on model to be removed, 5 machine(s), 1 application(s)...
Waiting on model to be removed, 5 machine(s), 1 application(s)...
Waiting on model to be removed, 5 machine(s), 1 application(s)...
Waiting on model to be removed, 5 machine(s)...
Waiting on model to be removed, 5 machine(s)...
Waiting on model to be removed, 5 machine(s)...
Waiting on model to be removed, 5 machine(s)...
Waiting on model to be removed, 5 machine(s)...
Waiting on model to be removed...
Waiting on model to be removed...
Waiting on model to be removed...
Could not get the model status from the API: <nil>.

$ echo $?
0

snap info juju
...
tracking: edge
installed: 2.3-rc1+develop-724924b (2914) 52MB classic
refreshed: 2017-11-16 19:26:30 +0300 MSK
channels:
  stable: 2.2.6 (2739) 25MB classic
  candidate: 2.2.7+2.2-ae2506a (2917) 43MB classic
  beta: 2.3-beta3 (2872) 29MB classic
  edge: 2.3-rc1+develop-724924b (2919) 52MB classic

===

Some errors are present at the very end of the logsink.log:

pastebinit /var/log/juju/logsink.log

https://paste.ubuntu.com/25976410/

f910006b-6b1a-4c48-8101-2e3697ab452f: unit-ubuntu-0 2017-11-16 20:24:16 ERROR juju.worker.dependency engine.go:551 "meter-status" manifold worker returned unexpected error: unit "ubuntu/0" not found
f910006b-6b1a-4c48-8101-2e3697ab452f: unit-ubuntu-0 2017-11-16 20:24:16 ERROR juju.worker.dependency engine.go:551 "upgrader" manifold worker returned unexpected error: permission denied
f910006b-6b1a-4c48-8101-2e3697ab452f: unit-ubuntu-0 2017-11-16 20:24:16 ERROR juju.worker.dependency engine.go:551 "uniter" manifold worker returned unexpected error: unit "ubuntu/0" not found
f910006b-6b1a-4c48-8101-2e3697ab452f: unit-ubuntu-1 2017-11-16 20:24:16 ERROR juju.worker.dependency engine.go:551 "upgrader" manifold worker returned unexpected error: permission denied
f910006b-6b1a-4c48-8101-2e3697ab452f: unit-ubuntu-1 2017-11-16 20:24:16 ERROR juju.worker.dependency engine.go:551 "meter-status" manifold worker returned unexpected error: unit "ubuntu/1" not found
f910006b-6b1a-4c48-8101-2e3697ab452f: unit-ubuntu-1 2017-11-16 20:24:16 ERROR juju.worker.dependency engine.go:551 "uniter" manifold worker returned unexpected error: unit "ubuntu/1" not found
f910006b-6b1a-4c48-8101-2e3697ab452f: unit-ubuntu-4 2017-11-16 20:24:16 ERROR juju.worker.uniter agent.go:28 resolver loop error: preparing operation "run config-changed hook": unit "ubuntu/4" not found (not found)
f910006b-6b1a-4c48-8101-2e3697ab452f: unit-ubuntu-4 2017-11-16 20:24:16 ERROR juju.worker.uniter agent.go:31 updating agent status: unit "ubuntu/4" not found (not found)
4b838670-ea87-4077-8270-258d1beba7a3: machine-0 2017-11-16 20:24:31 ERROR juju.worker.dependency engine.go:551 "log-forwarder" manifold worker returned unexpected error: settings not found (not found)

[John A Meinel (jameinel)]

At the very least, I'd like to report the error that is causing us to complain. It looks like we're checking for a specific error, and then reporting the generic error (which is nil or we wouldn't have gotten this far).

[John A Meinel (jameinel)]

https://github.com/juju/juju/pull/8105