Someone on your team just asked why your workflows spike CPU at midnight. You stare at your dashboards. Prefect orchestrates your pipelines beautifully, but visibility fades after “flow succeeded.” SignalFx is piping in metrics, yet they sit in another silo. The real question emerges: how do you merge them into one story?
Prefect handles orchestration and state, tracking every task run through its lifecycle. SignalFx (now part of Splunk Observability Cloud) digests telemetry in real time, correlating metrics, traces, and alerts across distributed systems. Together, Prefect SignalFx integration connects those dots so you can see not just when tasks run, but how infrastructure responds while they do.
At its core, the integration works through structured event emission. Prefect emits run-level metadata and custom metrics as flows execute. SignalFx ingests those metrics using its agent or API collector. Every retry, latency spike, or resource bottleneck becomes measurable. You can then visualize flow health alongside cluster load and queue depth, even map it against application signals from AWS, GCP, or Kubernetes pods.
A simple example: a Prefect flow triggers a data transformation. Each stage reports duration, success, and errors to SignalFx. If one stage consistently lags, you correlate it with node CPU from SignalFx dashboards. Now you are debugging across both workflow and runtime, not guessing which tab lies.
Best Practices
Fine-tune event granularity. Emitting every micro task creates noise, while too few events blind you. Focus on stage-level metrics that reveal meaningful runtime trends. Use service accounts with limited permissions under strict IAM roles, such as AWS IAM or Okta federated identities. Rotate tokens automatically. Annotate your metrics. Prefix each metric name with team or environment tags so your alerts remain readable six months later.