Metric Key

In the following article, you can find out how each open source metric expresses metric which is server1's CPU Usage and how it indexes to graphene key store handler:

Graphite 9.x or 1.x : servers.server1.cpu.usage

{
  "_id" : "NONE_servers.server1.cpu.usage",
  "0" : "servers",
  "1" : "server1",
  "2" : "cpu",
  "3" : "usage",
  "depth" : 4,
  "leaf": true
}

Graphite 1.1.x Tag : cpu.usage;servers=server1

{
  "_id": "cpu.usage;servers=server1",
  "servers" : "server1",
  "name" : "cpu.usage"
}

Prometheus : cpu_usage{servers="server1"} 10

{
  "_id": "cpu_usage;servers=server1",
  "servers" : "server1",
  "metric" : "cpu_usage"
}

InfluxDB : cpu,servers=server1, usage=10 => TagBasedKeyStoreHandler

{
  "_id": "cpu.usage;servers=server1",	
  "@name": "cpu.usage",
  "servers": "server1"
}

How to search both of them which were influxDB, graphite and prometheus metric: If you want to use graphite tag metric with influxDB, add the measurement tag key.

Graphite Tag : usage;servers=server1;measurement=cpu

{
  "_id": "NONE;cpu;servers=server1",
  "@source" : "graphite",
  "@measurement": "cpu",
  "server" : "server1",
  "cpu": [{
	"metric" : "usage"
  }]
}