Telemetry events emitted by Redis.

Events

• [:redis_ex, :connection, :connect] - successful connection

  • Measurements: %{duration: native_time}
  • Metadata: %{host: host, port: port}

• [:redis_ex, :connection, :disconnect] - connection lost

  • Measurements: %{}
  • Metadata: %{host: host, port: port, reason: reason}

• [:redis_ex, :pipeline, :start] - pipeline/command started

  • Measurements: %{system_time: native_time}
  • Metadata: %{commands: commands}

• [:redis_ex, :pipeline, :stop] - pipeline/command completed

  • Measurements: %{duration: native_time}
  • Metadata: %{commands: commands}

• [:redis_ex, :pipeline, :exception] - pipeline/command failed

  • Measurements: %{duration: native_time}
  • Metadata: %{commands: commands, kind: kind, reason: reason}

• [:redis_ex, :auto_pipeline, :flush] - an automatic batch was sent

  • Measurements: %{batch_size: count}
  • Metadata: %{host: host, port: port, reason: reason}

Usage

Attach a handler:

:telemetry.attach("redis-logger", [:redis_ex, :pipeline, :stop], fn name, measurements, metadata, _config ->
  Logger.info("Redis #{inspect(name)} took #{measurements.duration}ns for #{length(metadata.commands)} commands")
end, nil)

Or use the built-in default handler for logging:

Redis.Telemetry.attach_default_handler()