Observability

Logging

Edge Worker logs various events to the console. You can change the log level by setting EDGE_WORKER_LOG_LEVEL environment variable:

supabase/functions/.env

EDGE_WORKER_LOG_LEVEL=debug

Available log levels are:

• debug
• info
• error
• (more will come)

By default, Edge Worker’s log level is info.

Heartbeats

Edge Worker sends heartbeats every 5 seconds and updates last_heartbeat_at column in pgflow.workers table.

List of active workers

In order to get a list of active workers, we need to fetch those that have pinged in the last 6 seconds (+1s to account for delays):

SELECT *
FROM pgflow.workers
WHERE last_heartbeat_at > now() - make_interval(secs => 6)