Carbon metrics generator for graphite-web system.
To get the working binary run the command
go install github.com/Felixoid/coal-mine
The program accepts multiple --const, --counter and --random arguments as metrics generator names. They can be specified as curly brace expandable masks, for example server{01..10}.soft{1..5} will generate 50 metrics with two nodes. --from and --until accept the same values as graphite-web /render handler. --value and --deviation values affect the each next point for the metrics.
Run coal-mine config-example to see the full explanation of each generator type.
coal-mine --random '1.{001..100}.3.4{22..225}' --random '1.{101..200}.3.4{22..225}' --random '1.{201..300}.3.4{22..225}' --random '1.{301..400}.3.4{22..225}' --counter '22.22.33.{10..100}' --from -2d --until 23h --step 300
Additionally, the generators can be set through the configuration file with -c/--config config.toml argument. Then each generator can have custom from/until/step/value/deviation parameters.
To mock the normal metrics sending, for example, to perform the load test, the program has a special mode:
coal-mine online --random '1.{001..00}.3.4{22..25}' --step 3 --randomize
It's highly recommended to use --randomize in the online mode to send metrics each second.
On Ctrl+C it will finish the current writes and then exits.