What does a sample rate of 0 indicate in DogStatsD metric submission?

A sample rate of 0 in DogStatsD metric submission signifies that no metrics are sent to the Datadog service. In the context of metrics, the sample rate determines the proportion of data points that are collected and forwarded. When the sample rate is set to 0, it effectively means that the submission mechanism is configured not to send any data for the specific metric being monitored.

This scenario can be useful in various situations, such as when debugging, managing bandwidth, or temporarily disabling specific metrics while maintaining other monitoring functionalities. Understanding the sample rate helps in correctly setting up the data collection process.

In contrast, a sample rate of 1 would indicate that all metrics are sent without any filtering, while a value between 0 and 1 would mean that only a fraction of the metrics are sent. The idea of metrics being aggregated generally refers to collecting multiple data points into summary information, which is not the case when a sample rate of 0 is applied.