func DiskIOMetrics() (L []*model.MetricValue) {
dsList, err := nux.ListDiskStats()
if err != nil {
log.Println(err)
return
}
for _, ds := range dsList {
if !ShouldHandleDevice(ds.Device) {
continue
}
device := "device=" + ds.Device
L = append(L, CounterValue("disk.io.read_requests", ds.ReadRequests, device))
L = append(L, CounterValue("disk.io.read_merged", ds.ReadMerged, device))
L = append(L, CounterValue("disk.io.read_sectors", ds.ReadSectors, device))
L = append(L, CounterValue("disk.io.msec_read", ds.MsecRead, device))
L = append(L, CounterValue("disk.io.write_requests", ds.WriteRequests, device))
L = append(L, CounterValue("disk.io.write_merged", ds.WriteMerged, device))
L = append(L, CounterValue("disk.io.write_sectors", ds.WriteSectors, device))
L = append(L, CounterValue("disk.io.msec_write", ds.MsecWrite, device))
L = append(L, CounterValue("disk.io.ios_in_progress", ds.IosInProgress, device))
L = append(L, CounterValue("disk.io.msec_total", ds.MsecTotal, device))
L = append(L, CounterValue("disk.io.msec_weighted_total", ds.MsecWeightedTotal, device))
}
return
}
func CheckCollector() {
output := make(map[string]bool)
_, procStatErr := nux.CurrentProcStat()
_, listDiskErr := nux.ListDiskStats()
ports, listeningPortsErr := nux.ListeningPorts()
procs, psErr := nux.AllProcs()
_, duErr := sys.CmdOut("du", "--help")
output["kernel "] = len(KernelMetrics()) > 0
output["df.bytes"] = len(DeviceMetrics()) > 0
output["net.if "] = len(CoreNetMetrics([]string{})) > 0
output["loadavg "] = len(LoadAvgMetrics()) > 0
output["cpustat "] = procStatErr == nil
output["disk.io "] = listDiskErr == nil
output["memory "] = len(MemMetrics()) > 0
output["netstat "] = len(NetstatMetrics()) > 0
output["ss -s "] = len(SocketStatSummaryMetrics()) > 0
output["ss -tln "] = listeningPortsErr == nil && len(ports) > 0
output["ps aux "] = psErr == nil && len(procs) > 0
output["du -bs "] = duErr == nil
for k, v := range output {
status := "fail"
if v {
status = "ok"
}
fmt.Println(k, "...", status)
}
}
func UpdateDiskStats() error {
dsList, err := nux.ListDiskStats()
if err != nil {
return err
}
dsLock.Lock()
defer dsLock.Unlock()
for i := 0; i < len(dsList); i++ {
device := dsList[i].Device
diskStatsMap[device] = [2]*nux.DiskStats{dsList[i], diskStatsMap[device][0]}
}
return nil
}