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Metrics

How to export the metrics

Service-Center is compatible with the Prometheus standard. By default, the full metrics can be collected by accessing the /metrics API through the 30100 port.

If you want to customize the metrics configuration.

metrics:
  enable: true # enable to start metrics gather
  interval: 30s # the duration of collection
  exporter: prometheus # use the prometheus exporter
  prometheus:
    # optional, listen another ip-port and path if set, e.g. http://127.0.0.1:80/other
    listenURL:

Summary

FamilyName: service_center

Server

metric type description
http_request_total counter The total number of received service requests.
http_success_total counter Total number of requests responding to status code 2xx or 3xx.
http_request_durations_microseconds summary The latency of http requests.
http_query_per_seconds gauge TPS of http requests.

Pub/Sub

metric type description
notify_publish_total counter The total number of instance events.
notify_publish_durations_microseconds summary The latency between the event generated in ServiceCenter and received by the client.
notify_pending_total counter The total number of pending instances events.
notify_pending_durations_microseconds summary The latency of pending instances events.
notify_subscriber_total counter The total number of subscriber, e.g. Websocket, gRPC.

Meta

metric type description
db_heartbeat_total counter The total number of received instance heartbeats.
db_heartbeat_durations_microseconds summary The latency of received instance heartbeats.
db_domain_total counter The total number of domains.
db_service_total counter The total number of micro-services.
db_service_usage gauge The usage percentage of service quota.
db_instance_total counter The total number of instances.
db_instance_usage gauge The usage percentage of instances.
db_schema_total counter The total number of schemas.
db_framework_total counter The total number of SDK frameworks.

Backend

metric type description
db_backend_event_total counter The total number of received backend events, e.g. etcd, Mongo.
db_backend_event_durations_microseconds summary The latency between received backend events and finish to build cache.
db_dispatch_event_total counter The total number of dispatch events to resource handlers.
db_dispatch_event_durations_microseconds summary The latency between received backend events and finish to dispatch.

System

metric type description
db_sc_total counter The total number of ServiceCenter instances.
process_resident_memory_bytes
process_cpu_seconds_total
process_cpu_usage
go_threads
go_goroutines