Lightbend Telemetry 2.3 migration guide

This is a guide for migrating from Lightbend Telemetry 2.2 to Lightbend Telemetry 2.3.

Histogram reservoirs

The configuration for Coda Hale Metrics histogram reservoirs has changed.

Previously, the size or time for sliding window reservoirs were configured with:

cinnamon.chmetrics {
  histogram {
    # size for sliding-window histogram
    size = 8192

    # time for sliding-time-window histogram
    time = 5 seconds
  }
}

Which should now become:

cinnamon.chmetrics {
  histogram {
    sliding-window {
      size = 8192
    }

    sliding-time-window {
      time = 5 seconds
    }
  }
}