Keyless Backend Metrics

Connection Metrics

No additional tags.

The metric names are:

• backend.keyless.connection.attempt

  type: count

  The number of connection attempts.

• backend.keyless.connection.established

  type: count

  The number of successfully established connections.

• backend.keyless.channel.alive

  type: gauge

  The number of live channels. A channel may be a TCP connection or a QUIC stream.

Request Metrics

• backend.keyless.request.recv

  type: count

  The number of requests received.

• backend.keyless.request.send

  type: count

  The number of requests sent to the upstream peer.

• backend.keyless.request.drop

  type: count

  The number of requests dropped internally.

• backend.keyless.request.timeout

  type: count

  The number of requests that timed out while waiting for a response.

• backend.keyless.response.recv

  type: count

  The number of responses received from the upstream peer.

• backend.keyless.response.send

  type: count

  The number of responses sent to the client.

• backend.keyless.response.drop

  type: count

  The number of responses dropped internally.

Duration Metrics

The following additional tag is present:

• quantile

The metric names are:

• backend.keyless.connect.duration

  type: gauge

  Connection duration statistics.

• backend.keyless.wait.duration

  type: gauge

  Internal queue wait-duration statistics.

• backend.keyless.response.duration

  type: gauge

  Upstream response-duration statistics.