Monitoring

Monitoring Tarmac with Prometheus Metrics

Tarmac exposes several metrics to facilitate monitoring services. Metrics are available via the /metrics end-point in the Prometheus format.

These metrics include internal Tarmac system metrics such as the number of goroutines, memory utilization, and WASM function-specific metrics such as counters for Callbacks and WASM function execution time.

Some valuable metrics to monitor are in the below table.

Metric Name	Metric Type	Description
http_server	Summary	Summary of HTTP Server requests
scheduled_tasks	Summary	Summary of user defined scheduled task WASM function executions
wasm_callbacks	Summary	Summary of Tarmac callback function executions
wasm_functions	Summary	Summary of wasm function executions

These metrics do not need to be enabled and are "on by default".