GraphiteWriter

#GraphiteWriter

Graphite Writer

Graphite is a very cool graphing mechanism that is similar to Cacti, but far easier to setup since you don't have to become a RRD expert. All you have to do to configure jmxtrans to use Graphite is to setup the GraphiteWriter with a host and port and the writer will send what ever you want to graph to it.

Here is an example .json file that outputs HeapMemoryUsage and NonHeapMemoryUsage directly to graphite:

{
  "servers" : [ {
    "port" : "1099",
    "host" : "w2",
    "queries" : [ {
      "obj" : "java.lang:type=Memory",
      "attr" : [ "HeapMemoryUsage", "NonHeapMemoryUsage" ],
      "outputWriters" : [ {
        "@class" : "com.googlecode.jmxtrans.model.output.GraphiteWriter",
        "settings" : {
          "port" : 2003,
          "host" : "192.168.192.133"
        }
      } ]
    } ]
  } ]
}

This produces the following screen shot. It was not necessary to tell graphite anything about the 'tree' that was created as it was generated automatically by GraphiteWriter. This is the example Java code to generate the above json.

If you add "rootPrefix":"my.root.prefix", to the "settings" section of the configuration, then it will prepend the value to the graphite 'tree' in place of what is now "servers".