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A broken relation causes an uncaught exception #368

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gatici opened this issue Mar 5, 2024 · 3 comments
Open

A broken relation causes an uncaught exception #368

gatici opened this issue Mar 5, 2024 · 3 comments
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@gatici
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gatici commented Mar 5, 2024 •
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Steps to reproduce

Follow the guide to deploy 5G SD-Core.
https://canonical-charmed-5g.readthedocs-hosted.com/en/1.3-beta_a/how-to/deploy_sdcore_standalone/
Then run juju remove-application amf.

Versions

Operating system: Ubuntu 23.04

Juju CLI: 3.4.0

Juju agent:

"/run/user/1000/doc": lstat /run/user/1000/doc: permission denied
Model  Controller          Cloud/Region        Version  SLA          Timestamp
test1  microk8s-localhost  microk8s/localhost  3.4.0    unsupported  18:30:41+03:00

App                       Version  Status   Scale  Charm                     Channel        Rev  Address         Exposed  Message
amf                                waiting      1  sdcore-amf-k8s                             2  10.152.183.42   no       installing agent
ausf                               active       1  sdcore-ausf-k8s           1.3/edge        47  10.152.183.114  no       
grafana-agent-k8s         0.35.2   waiting      1  grafana-agent-k8s         latest/stable   58  10.152.183.27   no       installing agent
mongodb-k8s                        waiting      1  mongodb-k8s               6/beta          38  10.152.183.216  no       installing agent
nms                                active       1  sdcore-nms-k8s            1.3/edge        37  10.152.183.201  no       
nrf                                active       1  sdcore-nrf-k8s            1.3/edge        53  10.152.183.25   no       
nssf                               active       1  sdcore-nssf-k8s           1.3/edge        42  10.152.183.102  no       
pcf                                active       1  sdcore-pcf-k8s            1.3/edge        43  10.152.183.242  no       
self-signed-certificates           active       1  self-signed-certificates  beta            72  10.152.183.135  no       
smf                                active       1  sdcore-smf-k8s            1.3/edge        49  10.152.183.48   no       
traefik-k8s               2.10.4   active       1  traefik-k8s               latest/stable  166  10.0.0.3        no       
udm                                active       1  sdcore-udm-k8s            1.3/edge        40  10.152.183.127  no       
udr                                active       1  sdcore-udr-k8s            1.3/edge        42  10.152.183.110  no       
upf                                active       1  sdcore-upf-k8s            1.3/edge        52  10.152.183.152  no       
webui                              active       1  sdcore-webui-k8s          1.3/edge        26  10.152.183.206  no       

Unit                         Workload  Agent  Address      Ports  Message
amf/0*                       blocked   idle   10.1.146.24         Waiting for fiveg_nrf relation
ausf/0*                      active    idle   10.1.146.38         
grafana-agent-k8s/0*         blocked   idle   10.1.146.25         logging-consumer: off, grafana-cloud-config: off
mongodb-k8s/0*               error     idle   10.1.146.58         hook failed: "database-relation-broken"
nms/0*                       active    idle   10.1.146.9          
nrf/0*                       active    idle   10.1.146.33         
nssf/0*                      active    idle   10.1.146.30         
pcf/0*                       active    idle   10.1.146.63         
self-signed-certificates/0*  active    idle   10.1.146.27         
smf/0*                       active    idle   10.1.146.22         
traefik-k8s/0*               active    idle   10.1.146.60         
udm/0*                       active    idle   10.1.146.48         
udr/0*                       active    idle   10.1.146.18         
upf/0*                       active    idle   10.1.146.21         
webui/0*                     active    idle   10.1.146.5

Charm revision: 6/beta Rev: 38

LXD: 5.20

Log output

Juju debug log:

controller-0: 18:19:44 INFO juju.worker.caasapplicationprovisioner.amf scaling application "amf" to desired scale 0
controller-0: 18:19:45 WARNING juju.worker.caasapplicationprovisioner.amf update units application "amf" not found
controller-0: 18:19:47 WARNING juju.worker.caasapplicationprovisioner.amf update units application "amf" not found
unit-mongodb-k8s-0: 18:19:47 INFO juju.worker.uniter awaiting error resolution for "relation-broken" hook
unit-mongodb-k8s-0: 18:19:48 WARNING unit.mongodb-k8s/0.juju-log database:4: 'app' expected but not received.
unit-mongodb-k8s-0: 18:19:48 WARNING unit.mongodb-k8s/0.juju-log database:4: 'app_name' expected in snapshot but not found.
controller-0: 18:19:48 WARNING juju.worker.caasapplicationprovisioner.amf update units application "amf" not found
unit-mongodb-k8s-0: 18:19:48 INFO unit.mongodb-k8s/0.juju-log database:4: Update relation user: relation-26 on free5gc
unit-mongodb-k8s-0: 18:19:48 INFO unit.mongodb-k8s/0.juju-log database:4: Updating relation data according to diff
unit-mongodb-k8s-0: 18:19:48 ERROR unit.mongodb-k8s/0.juju-log database:4: Uncaught exception while in charm code:
Traceback (most recent call last):
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/venv/ops/model.py", line 2946, in _run
    result = subprocess.run(args, **kwargs)  # type: ignore
  File "/usr/lib/python3.10/subprocess.py", line 526, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '('/var/lib/juju/tools/unit-mongodb-k8s-0/relation-get', '-r', '4', '-', 'mongodb-k8s', '--app', '--format=json')' returned non-zero exit status 1.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/./src/charm.py", line 1137, in <module>
    main(MongoDBCharm)
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/venv/ops/main.py", line 436, in main
    _emit_charm_event(charm, dispatcher.event_name)
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/venv/ops/main.py", line 144, in _emit_charm_event
    event_to_emit.emit(*args, **kwargs)
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/venv/ops/framework.py", line 340, in emit
    framework._emit(event)
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/venv/ops/framework.py", line 842, in _emit
    self._reemit(event_path)
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/venv/ops/framework.py", line 931, in _reemit
    custom_handler(event)
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/lib/charms/mongodb/v0/mongodb_provider.py", line 116, in _on_relation_event
    self.oversee_users(departed_relation_id, event)
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/lib/charms/mongodb/v0/mongodb_provider.py", line 168, in oversee_users
    self._diff(event)
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/lib/charms/mongodb/v0/mongodb_provider.py", line 191, in _diff
    old_data = json.loads(event.relation.data[self.charm.model.app].get("data", "{}"))
  File "/usr/lib/python3.10/_collections_abc.py", line 824, in get
    return self[key]
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/venv/ops/model.py", line 1686, in __getitem__
    return super().__getitem__(key)
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/venv/ops/model.py", line 790, in __getitem__
    return self._data[key]
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/venv/ops/model.py", line 774, in _data
    data = self._lazy_data = self._load()
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/venv/ops/model.py", line 1570, in _load
    return self._backend.relation_get(self.relation.id, self._entity.name, self._is_app)
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/venv/ops/model.py", line 3027, in relation_get
    raw_data_content = self._run(*args, return_output=True, use_json=True)
  File "/var/lib/juju/agents/unit-mongodb-k8s-0/charm/venv/ops/model.py", line 2948, in _run
    raise ModelError(e.stderr) from e
ops.model.ModelError: ERROR permission denied (unauthorized access)

unit-mongodb-k8s-0: 18:19:49 ERROR juju.worker.uniter.operation hook "database-relation-broken" (via hook dispatching script: dispatch) failed: exit status 1

Additional context
@gatici gatici added the bug Something isn't working label Mar 5, 2024
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github-actions bot commented Mar 5, 2024

https://warthogs.atlassian.net/browse/DPE-3707

@MiaAltieri
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Hi @gatici - thank you for creating this issue, the tutorial you referenced - doesn't show the MongoDB charm or how it might be related.

Would you mind updating your issue with the exact comands you used?

I am looking forward to helping you with this ticket and improving MongoDB

@gatici
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gatici commented Mar 13, 2024 •
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Hello @MiaAltieri The documentation is updated after I created the issue. Now, I replaced the link to older one which deploys sdcore bundle simply. ( https://canonical-charmed-5g.readthedocs-hosted.com/en/1.3-beta_a/how-to/deploy_sdcore_standalone/ )

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