Seeing this from juju charm for postgresql, LXD 5.13, juju 2.9.42-ubuntu-amd64
juju status
```
$ juju status
Model Controller Cloud/Region Version SLA Timestamp
core-postgres-main localhost-localhost localhost/localhost 2.9.42 unsupported 22:33:33+02:00
App Version Status Scale Charm Channel Rev Exposed Message
postgresql 14.7 error 1 postgresql latest/stable 290 no hook failed: "db-relation-departed"
Unit Workload Agent Machine Public address Ports Message
postgresql/1* error idle 1 10.153.128.218 5432/tcp hook failed: "db-relation-departed"
Machine State Address Inst id Series AZ Message
1 started 10.153.128.218 juju-4b1d84-1 jammy Running
Offer Application Charm Rev Connected Endpoint Interface Role
postgresql postgresql postgresql 290 0/1 db pgsql provider
```
Host system is kubuntu 22.04,
```
unit-postgresql-1: 22:22:16 INFO juju.worker.uniter awaiting error resolution for "relation-departed" hook
unit-postgresql-1: 22:23:00 INFO juju.worker.uniter awaiting error resolution for "relation-departed" hook
unit-postgresql-1: 22:27:16 INFO juju.worker.uniter awaiting error resolution for "relation-departed" hook
unit-postgresql-1: 22:27:16 INFO unit.postgresql/1.juju-log db:8: Reactive main running for hook db-relation-departed
unit-postgresql-1: 22:27:16 ERROR unit.postgresql/1.juju-log db:8: Unable to find implementation for relation: provides of block-storage
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed ERROR permission denied
unit-postgresql-1: 22:27:16 ERROR unit.postgresql/1.juju-log db:8: Hook error:
Traceback (most recent call last):
File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/__init__.py", line 73, in main
hookenv._run_atstart()
File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charmhelpers/core/hookenv.py", line 1348, in _run_atstart
callback(*args, **kwargs)
File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 131, in _startup
endpoint._manage_departed()
File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 214, in _manage_departed
self.all_departed_units.append(unit)
File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 735, in append
self._save()
File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 711, in _save
unitdata.kv().set(self._cache_key, [item._serialize() for item in self])
File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 711, in <listcomp>
unitdata.kv().set(self._cache_key, [item._serialize() for item in self])
File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 612, in _serialize
'data': dict(self.received_raw),
File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 606, in received_raw
return self.received.raw_data
File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 595, in received
self._data = JSONUnitDataView(hookenv.relation_get(
File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charmhelpers/core/hookenv.py", line 85, in wrapper
res = func(*args, **kwargs)
File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charmhelpers/core/hookenv.py", line 472, in relation_get
return json.loads(subprocess.check_output(_args).decode('UTF-8'))
File "/usr/lib/python3.10/subprocess.py", line 420, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "/usr/lib/python3.10/subprocess.py", line 524, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['relation-get', '--format=json', '-r', 'db:8', '-', 'remote-a332bb6dcd704adf89c2e1f47683f4bf/0']' returned non-zero exit status 1.
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed Traceback (most recent call last):
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/charm/hooks/db-relation-departed", line 22, in <module>
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed main()
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/__init__.py", line 73, in main
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed hookenv._run_atstart()
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charmhelpers/core/hookenv.py", line 1348, in _run_atstart
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed callback(*args, **kwargs)
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 131, in _startup
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed endpoint._manage_departed()
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 214, in _manage_departed
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed self.all_departed_units.append(unit)
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 735, in append
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed self._save()
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 711, in _save
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed unitdata.kv().set(self._cache_key, [item._serialize() for item in self])
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 711, in <listcomp>
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed unitdata.kv().set(self._cache_key, [item._serialize() for item in self])
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 612, in _serialize
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed 'data': dict(self.received_raw),
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 606, in received_raw
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed return self.received.raw_data
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charms/reactive/endpoints.py", line 595, in received
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed self._data = JSONUnitDataView(hookenv.relation_get(
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charmhelpers/core/hookenv.py", line 85, in wrapper
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed res = func(*args, **kwargs)
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/var/lib/juju/agents/unit-postgresql-1/.venv/lib/python3.10/site-packages/charmhelpers/core/hookenv.py", line 472, in relation_get
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed return json.loads(subprocess.check_output(_args).decode('UTF-8'))
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/usr/lib/python3.10/subprocess.py", line 420, in check_output
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed File "/usr/lib/python3.10/subprocess.py", line 524, in run
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed raise CalledProcessError(retcode, process.args,
unit-postgresql-1: 22:27:16 WARNING unit.postgresql/1.db-relation-departed subprocess.CalledProcessError: Command '['relation-get', '--format=json', '-r', 'db:8', '-', 'remote-a332bb6dcd704adf89c2e1f47683f4bf/0']' returned non-zero exit status 1.
unit-postgresql-1: 22:27:17 ERROR juju.worker.uniter.operation hook "db-relation-departed" (via explicit, bespoke hook script) failed: exit status 1
unit-postgresql-1: 22:27:17 INFO juju.worker.uniter awaiting error resolution for "relation-departed" hook
unit-postgresql-1: 22:27:59 INFO juju.worker.uniter awaiting error resolution for "relation-departed" hook
```
