Fast API Websocket coroutines throw attribute error when run with newrelic admin

[sankarpa]

Description I am using newrelic agent 8.5.0 with my fastapi which houses both rest and websocket apis. The app get deployed in kubernetes and here is how the container command looks like

   containers:
        - name: a-service
          image: 'a-service:latest'
          command:
            - newrelic-admin
            - run-program
            - uvicorn
            - app.main:app
            - --port=8000
            - --host=0.0.0.0
          resources:
            requests:
              memory: "512Mi"
              cpu: "500m"
            limits:
              memory: "512Mi"
              cpu: "500m"
          ports:
            - containerPort: 8000
              protocol: TCP

The container comes up healthy and runs , but the coroutines throws error with attribute not found error when calling async functions. The same is working fine when i run the container without newrelic-admin

[TimPansino]

Hello,

Could you perhaps supply a reproduction or at least some more specifics?

I was unable to reproduce any issue with the latest version of the agent. FastAPI has a minimalist example that I ran some testing against. I was using an async websocket endpoint and both sync and async HTTP routes were working alongside it with no issues.

[Ak-x]

Hello @sankarpa, without reproduction steps we will close this ticket in 30 days.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[sankarpa]

Hi @Ak-x @TimPansino Sorry for responding late, I am using aioredis pubsub in the websocket functions and the code looks like below.

pubsub = redis.pubsub()       
await pubsub.subscribe(f"{channel_id}")
await websocket.accept()

if I don't use newrelic agent , the subscribe function call works fine .

I get below error if I initialise the newrelic agent and connect to the websocket

AttributeError: 'coroutine' object has no attribute 'subscribe'

[sankarpa]

@TimPansino Any updates on this?

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[workato-integration[bot]]

https://new-relic.atlassian.net/browse/NR-407828

[Ak-x]

Thanks for the response @sankarpa , we will review in our upcoming iteration

[Ak-x]

We believe this is a crash due to the agent not supporting aioredis any longer. Upgrading to the latest version of redis.asyncio may resolve this. Our team will investigate our own documentation.

cc: @TimPansino

[Ak-x]

Closing until we receive additional insight from the community on testing the above.