ERROR:ddtrace.internal.writer.writer:failed to send, dropping 1 traces to intake at ... after 3 retries

[jonwhittlestone]

hi

I was unable to see events.

The docker console shows:

notes           | ERROR:ddtrace.internal.writer.writer:failed to send, dropping 1 traces to intake at http://datadog:8126/v0.5/traces after 3 retries

Steps to reproduce

1. clone repo

git clone https://github.com/DataDog/apm-tutorial-python.git

2. add key and eu

# .apm-tutorial-python/docker/containers/solution/docker-compose.yaml

...
services:
  datadog:
    container_name: dd-agent
    image: "gcr.io/datadoghq/agent:latest"
    environment:
+      - DD_API_KEY=changeme
+      - DD_SITE=datadoghq.eu  # Defaults to 'datadoghq.com'. Customers outside North America should use their correct Datadog Domain
      - DD_APM_ENABLED=true    # Enable APM
    volumes: 
      - /var/run/docker.sock:/var/run/docker.sock:ro 
      - /proc/:/host/proc/:ro
      - /sys/fs/cgroup/:/host/sys/fs/cgroup:ro

3. build and run

docker-compose -f docker/containers/solution/docker-compose.yaml up db notes_app

4. check events explorer - https://app.datadoghq.eu/event/explorer

5. In console I see:

notes           | ERROR:ddtrace.internal.writer.writer:failed to send, dropping 2 traces to intake at http://datadog:8126/v0.5/traces after 3 retries

[sachin-akm]

how to fix this?