Summary

Log reason for non-retryable errors in http sinks.

Vector configuration

sources:
  dd-agent:
    type: datadog_agent
    address: 0.0.0.0:8283
    disable_logs: true
    disable_traces: true
    store_api_key: false
    split_metric_namespace: false

sinks:
  prometheus_out:
    type: prometheus_remote_write
    inputs:
      - dd-agent
    endpoint: http://localhost:9090/api/v1/write

  file_out:
    type: file
    inputs:
      - dd-agent
    path: /tmp/prometheus-metrics.log
    encoding:
      codec: json

Sample log

2026-07-30T19:10:02.173944Z ERROR sink{component_kind="sink" component_id=prometheus_out component_type=prometheus_remote_write}:request{request_id=69}: vector::sinks::util::retries: Not retriable; dropping the request. reason="Default retry strategy: Bad Request, response body: out of bounds\n"

Change Type

• Bug fix
• New feature
• Dependencies
• Non-functional (chore, refactoring, docs)
• Performance

Is this a breaking change?

• Yes
• No

Does this PR include user facing changes?

• Yes. Please add a changelog fragment based on our guidelines.
• No. A maintainer will apply the no-changelog label to this PR.

References

Notes

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