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very minor request, could someone help me delete an old agent in the UI that refuses to die (Remove and Clean Up both just spin for a while and then nothing happens)? ID is `d6962d8d-f4b0-4e04-8217-82d41400a043`

<@UL455076D> if removing the agent via UI doesn’t work, you could try to do it via API.

First list agents to get the ID of the agent in question:
```query{
   agents {
    name
    type
    id
  }
}	```
Then, use delete_agent mutation:
```mutation DeleteAgent {
  delete_agent(input: {agent_id: "your_agent_id"}) {
    success
  }
}```
if this doesn’t work too, you may be affected by <https://github.com/PrefectHQ/prefect/issues/5216|this rare issue>.

I think it's failing in the same way
```{
  "errors": [
    {
      "path": [
        "delete_agent"
      ],
      "message": "Operation timed out",
      "extensions": {
        "code": "API_ERROR"
      }
    }
  ],
  "data": {
    "delete_agent": null
  }
}```

yup, looks like the same issue as <https://prefect-community.slack.com/archives/CL09KU1K7/p1639051352191200|here>

ah, ok...well at least I'm not alone :slightly_smiling_face:

I’ll see if we can do something from the backend here. I’m guessing there’s a timeout as it tries to update all the associated flow runs.

Hey <@UL455076D> -- sorry for the delay, this has been done now; may take a minute to flush from caches

~not sure if it's related but I've been seeing this message a lot lately, restarting the (k8s) agent didn't help. pod seems totally normal and healthy. any ideas on how to debug? eventually the jobs do get picked up after anywhere from 3-10 minutes~ nevermind this was something else
```[2021-12-17 20:19:43-0500] WARNING - prefect | Flow 'brett-travel_activities/configs/mini_nor_cal.yaml': It has been 110 seconds and your flow run has not been submitted by an agent. Agent b809097f-2328-4634-9b87-cccc94c70453 (agent) has matching labels and last queried 3 minutes ago. Since it hasn't queried recently, it looks unhealthy. Restart it or start a new agent with labels {'data-usa'} to deploy your flow run.```