Filebeat Metrics

I know Filebeat can output metrics in its logfile but they appear to only be a subset of what is available via a GET /debug/vars when filebeat is running with -httpprof. If I am correct, I have some questions:

  1. Why a subset? It seems there are some important metrics missing such as libbeat.logstash.published_but_not_acked_events

  2. Are there any plans to extend what is output when metrics.enabled is set as True? I checked the release notes for the most current beta and see no activity regarding this.

  3. Are there any plans to actually document these metrics anywhere? At this point, a user is left to interpret their meaning based on each metric's name. For some, the meaning many be obvious. For others, not so much.

Thanks in advance.

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