func main() {
hostname, _ := os.Hostname()
client := gmetric.ClientFromFlag("ganglia")
value := flag.String("value", "", "Value of the metric")
groups := flag.String("group", "", "Group(s) of the metric (comma-separated)")
metric := &gmetric.Metric{}
flag.StringVar(&metric.Name, "name", "", "Name of the metric")
flag.StringVar(&metric.Title, "title", "", "Title of the metric")
flag.StringVar(&metric.Host, "host", hostname, "Hostname")
flag.StringVar((*string)(&metric.ValueType), "type", "", "Either string|int8|uint8|int16|uint16|int32|uint32|float|double")
flag.StringVar(&metric.Units, "units", "", "Unit of measure for the value e.g. Kilobytes, Celcius")
flag.StringVar((*string)(&metric.Slope), "slope", "both", "Either zero|positive|negative|both")
flag.DurationVar(&metric.TickInterval, "tmax", 60*time.Second, "The maximum time between gmetric calls")
flag.DurationVar(&metric.Lifetime, "dmax", 0, "The lifetime in seconds of this metric")
flag.StringVar(&metric.Description, "desc", "", "Description of the metric")
flag.StringVar(&metric.Spoof, "spoof", "", "IP address and name of host/device (colon separated) we are spoofing")
flag.Parse()
if metric.Name == "" || metric.ValueType == "" || *value == "" {
fmt.Fprintln(os.Stderr, "name, type and value are required")
flag.Usage()
os.Exit(2)
}
if *groups != "" {
metric.Groups = strings.Split(*groups, ",")
}
if err := client.Open(); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(2)
}
if err := client.WriteMeta(metric); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(2)
}
if err := client.WriteValue(metric, *value); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(2)
}
if err := client.Close(); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(2)
}
}
func main() {
gmrgroups := []string{"gmrtest"}
server := &Server{
ConcurrentRequests: &gangliamr.Counter{
Name: "concurrent_requests",
Title: "Number of concurrent requests",
Units: "requests",
Groups: gmrgroups,
},
NumRequests: &gangliamr.Meter{
Name: "num_requests",
Title: "Number of requests",
Units: "requests",
Groups: gmrgroups,
},
ResponseTime: &gangliamr.Timer{
Name: "num_requests",
Title: "Response time",
Groups: gmrgroups,
},
PageSize: &gangliamr.Histogram{
Name: "page_size",
Title: "Page size",
Units: "bytes",
Groups: gmrgroups,
},
}
client := gmetric.ClientFromFlag("ganglia")
registry := &gangliamr.Registry{
Prefix: "gmrtest",
WriteTickDuration: 20 * time.Second,
Client: client,
}
addr := flag.String("addr", "0.0.0.0:8077", "server address")
gomaxprocs := flag.Int("gomaxprocs", runtime.NumCPU(), "gomaxprocs")
flag.DurationVar(&server.MaxSleep, "max-sleep", time.Second*5, "max sleep")
flag.IntVar(&server.MaxSentences, "max-sentences", 500, "max sentences")
flag.Parse()
runtime.GOMAXPROCS(*gomaxprocs)
if err := client.Open(); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
registry.Register(server.ConcurrentRequests)
registry.Register(server.NumRequests)
registry.Register(server.ResponseTime)
registry.Register(server.PageSize)
fmt.Printf("Serving on http://%s/\n", *addr)
if err := http.ListenAndServe(*addr, server); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
if err := client.Close(); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}