PayGate emits Prometheus metrics on the admin HTTP server at /metrics. Typically Alertmanager is setup to aggregate the metrics and alert teams.
http_response_duration_seconds: Histogram representing the http response durationsmysql_connections: How many MySQL connections and what status they’re in.sqlite_connections: How many sqlite connections and what status they’re in.correction_codes_processed: Counter of correction (COR/NOC) files processedfiles_downloaded: Counter of files downloaded from a remote servermissing_return_transfers: Counter of return EntryDetail records handled without a found transferprenote_entries_processed: Counter of prenote EntryDetail records processedreturn_entries_processed: Counter of return EntryDetail records processedftp_agent_up: Status of FTP agent connectionsftp_agent_up: Status of SFTP agent connection