osrm-backend/docs/monitoring.md

Abstract

OSRM routed daemon publish health information in prometheus format. This option switched off by default. To enable this feature please set -P <monitoring_port> option on OSRM routed startup.

Available metrics

• osrm_routed_instance_info metric with base instanse information inside labels -- algorithm routing algorithm; -- code_version OSRM version. Same with -v command line option; -- data_version OSM data version if available. This value can be setted at the osrm-extract phase; -- working_threads actual count of http requests processing threads;
• http_requests_count http calls count divided by plugins. And invalid count for requests were plugin wasn't set;
• workers_busy http workers count that process request at this moment;