I am experimenting with InfluxDB 1.4 and I’m noticing that tag values still show up in
show tag values from "raw_data" with key=route despite some of those values having no data points in the
raw_data measurement (I have a short two-day retention policy).
Here’s roughly how I have things set up:
I have three RPs:
- Autogen (not used)
Data comes into the
raw_data measurement in the
2_days RP. The data has a route tag and a value.
Every 15 minutes, I have a kapacitor script to downsample the data and writing the new samples into a different measurement (say
data_15m) in the
90_days RP. These new samples are also tagged by
I’m assuming that I should be able to use
show tag values from "raw_data" with key=route to get a list of routes that have been seen over the past 2ish days, but I definitely see routes in that list that return no results when I try to select them from the
Restarting InfluxDB seems to trigger this prune of orphaned tag values. As such, I have two questions for the group:
- Is this behavior intended
- Is there a way I can trigger this pruning without having to restart InfluxDB?