VictoriaMetrics components like vmagent, vminsert or single-node can receive inserts via telnet put protocol and HTTP /api/put requests for ingesting OpenTSDB data. The same protocol is used for ingesting data in KairosDB.
See full list of OpenTSDB-related configuration flags by running:
/path/to/victoria-metrics-prod --help | grep opentsdb
Sending data via telnet #
Enable OpenTSDB receiver in VictoriaMetrics by setting -opentsdbListenAddr command line flag:
/path/to/victoria-metrics-prod -opentsdbListenAddr=:4242
Send data to the given address from OpenTSDB-compatible agents.
Example for writing data with OpenTSDB protocol to local VictoriaMetrics using nc:
echo "put foo.bar.baz `date +%s` 123 tag1=value1 tag2=value2" | nc -N localhost 4242
An arbitrary number of lines delimited by \n (aka newline char) can be sent in one go.
After that the data may be read via /api/v1/export endpoint:
curl -G 'http://localhost:8428/api/v1/export' -d 'match=foo.bar.baz'
The /api/v1/export endpoint should return the following response:
{"metric":{"__name__":"foo.bar.baz","tag1":"value1","tag2":"value2"},"values":[123],"timestamps":[1560277292000]}
Sending data via HTTP #
Enable HTTP server for OpenTSDB /api/put requests by setting -opentsdbHTTPListenAddr command line flag:
/path/to/victoria-metrics-prod -opentsdbHTTPListenAddr=:4242
Send data to the given address from OpenTSDB-compatible agents.
Example for writing a single data point:
curl -H 'Content-Type: application/json' -d '{"metric":"x.y.z","value":45.34,"tags":{"t1":"v1","t2":"v2"}}' http://localhost:4242/api/put
Example for writing multiple data points in a single request:
curl -H 'Content-Type: application/json' -d '[{"metric":"foo","value":45.34},{"metric":"bar","value":43}]' http://localhost:4242/api/put
After that the data may be read via /api/v1/export endpoint:
curl -G 'http://localhost:8428/api/v1/export' -d 'match[]=x.y.z' -d 'match[]=foo' -d 'match[]=bar'
The /api/v1/export endpoint should return the following response:
{"metric":{"__name__":"foo"},"values":[45.34],"timestamps":[1566464846000]}
{"metric":{"__name__":"bar"},"values":[43],"timestamps":[1566464846000]}
{"metric":{"__name__":"x.y.z","t1":"v1","t2":"v2"},"values":[45.34],"timestamps":[1566464763000]}
Extra labels may be added to all the imported time series by passing extra_label=name=value query args.
For example, /api/put?extra_label=foo=bar would add {foo="bar"} label to all the ingested metrics.