Metrics

Currently we only support send metrics to statsd, see stat for more details.

Common Tags

The following is the common tags for all metrics:

• daemon_group

  This tag is the same as the daemon group specified in config file or command args.

• stat_id

  A machine local unique stat_id for dedup purpose. It should be dropped by statsd, and the metrics with the same remaining tags should be aggregated.

• transport

  Show the transport layer protocol. Values are:

  • tcp

  • udp

• quantile

  Show the quantile value for histogram stats.

  The following values are always persent:

  • min

  • max

  • mean

  Values can be added by histogram metrics config. If not set, the following values are added by default:

  • 0.50

  • 0.80

  • 0.90

  • 0.95

  • 0.99

Metrics Types

• Server Metrics
  • Listen
  • Request
  • Traffic
• Logger Metrics
• Backend Metrics
  • Stream Backend Metrics
    • Connection Metrics
    • Duration Metrics
  • Keyless Backend Metrics
    • Connection Metrics
    • Request Metrics
    • Duration Metrics
• Runtime Metrics
  • Tokio Runtime Metrics