ylin30
commented
9 months ago Let's say I want to collect temperature, humidity and pressure readings from more than one location (say 'location1' and 'location2').
You need to design your time series first. In Opentsdb format, a time series should have a metric name, one or more tag-value pairs. There are a series of data points in a time series. Each data point defines what value the time series is at a specific timestamp.
In you case, you should have 3 metrics (temperature, humidity, and pressure) and all of them have one tag, location.
1)How would I code a put (or multiple put's) for the three values and for the two locations.
Assume there are two locations, 'garden' and 'living_room'. At 11am 9/26/2023 PDT (i.e., Unix epoch time 1695751200), the temperatures are 80 and 70 degree in the garden and living_room respectively.
If you use curl, run these two commands: (Note you need to use your TT host and port in the following, e.g., 192.168.0.2:6182)
curl -v -XPOST 'http://<TT host>:<TT port>/api/put' -d 'put temperature 1695751200 70 location=living_room'
curl -v -XPOST 'http://<TT host>:<TT port>/api/put' -d 'put temperature 1695751200 80 location=garden'Humidity and pressure are similar.
If you want to send writes in other languages, e.g., python, you can look at a wiki here
2) how would I code a GET to get the data from one of the locations?
Let's say you want to query the temperature in the garden 11am 9/26/2023 PDT, do this:
curl -v 'http://localhost:6182/api/query?start=1695751200&m=avg:temperature\{location=garden\}'There are lots of examples in this wiki. Hope they will help.
juggledad
So I have TickTock running and I the ping/pong works and the example curl statements to put and get readings work fine but I can seem to get others to work.
Let's say I want to collect temperature, humidity and pressure readings from more than one location (say 'location1' and 'location2').
1)How would I code a put (or multiple put's) for the three values and for the two locations. 2) how would I code a GET to get the data from one of the locations?
Once I can do that I should be able to work more things out myself. p.s. I have been looking at the documentation at opentsdb.net/docs but so far it hasn't helped.
Thanks!