Ejemplo n.º 1
0
func (self *rawContainerHandler) getFsStats(stats *info.ContainerStats) error {
	// Get Filesystem information only for the root cgroup.
	if self.name == "/" {
		filesystems, err := self.fsInfo.GetGlobalFsInfo()
		if err != nil {
			return err
		}
		for _, fs := range filesystems {
			stats.Filesystem = append(stats.Filesystem,
				info.FsStats{
					Device:          fs.Device,
					Limit:           fs.Capacity,
					Usage:           fs.Capacity - fs.Free,
					ReadsCompleted:  fs.DiskStats.ReadsCompleted,
					ReadsMerged:     fs.DiskStats.ReadsMerged,
					SectorsRead:     fs.DiskStats.SectorsRead,
					ReadTime:        fs.DiskStats.ReadTime,
					WritesCompleted: fs.DiskStats.WritesCompleted,
					WritesMerged:    fs.DiskStats.WritesMerged,
					SectorsWritten:  fs.DiskStats.SectorsWritten,
					WriteTime:       fs.DiskStats.WriteTime,
					IoInProgress:    fs.DiskStats.IoInProgress,
					IoTime:          fs.DiskStats.IoTime,
					WeightedIoTime:  fs.DiskStats.WeightedIoTime,
				})
		}
	} else if len(self.externalMounts) > 0 {
		var mountSet map[string]struct{}
		mountSet = make(map[string]struct{})
		for _, mount := range self.externalMounts {
			mountSet[mount.HostDir] = struct{}{}
		}
		filesystems, err := self.fsInfo.GetFsInfoForPath(mountSet)
		if err != nil {
			return err
		}
		for _, fs := range filesystems {
			stats.Filesystem = append(stats.Filesystem,
				info.FsStats{
					Device:          fs.Device,
					Limit:           fs.Capacity,
					Usage:           fs.Capacity - fs.Free,
					ReadsCompleted:  fs.DiskStats.ReadsCompleted,
					ReadsMerged:     fs.DiskStats.ReadsMerged,
					SectorsRead:     fs.DiskStats.SectorsRead,
					ReadTime:        fs.DiskStats.ReadTime,
					WritesCompleted: fs.DiskStats.WritesCompleted,
					WritesMerged:    fs.DiskStats.WritesMerged,
					SectorsWritten:  fs.DiskStats.SectorsWritten,
					WriteTime:       fs.DiskStats.WriteTime,
					IoInProgress:    fs.DiskStats.IoInProgress,
					IoTime:          fs.DiskStats.IoTime,
					WeightedIoTime:  fs.DiskStats.WeightedIoTime,
				})
		}
	}
	return nil
}
Ejemplo n.º 2
0
func buildTrace(cpu, mem []uint64, duration time.Duration) []*info.ContainerStats {
	if len(cpu) != len(mem) {
		panic("len(cpu) != len(mem)")
	}

	ret := make([]*info.ContainerStats, len(cpu))
	currentTime := time.Now()

	var cpuTotalUsage uint64 = 0
	for i, cpuUsage := range cpu {
		cpuTotalUsage += cpuUsage
		stats := new(info.ContainerStats)
		stats.Timestamp = currentTime
		currentTime = currentTime.Add(duration)

		stats.Cpu.Usage.Total = cpuTotalUsage
		stats.Cpu.Usage.User = stats.Cpu.Usage.Total
		stats.Cpu.Usage.System = 0
		stats.Cpu.Usage.PerCpu = []uint64{cpuTotalUsage}

		stats.Memory.Usage = mem[i]

		stats.Network.RxBytes = uint64(rand.Intn(10000))
		stats.Network.RxErrors = uint64(rand.Intn(1000))
		stats.Network.TxBytes = uint64(rand.Intn(100000))
		stats.Network.TxErrors = uint64(rand.Intn(1000))

		stats.Filesystem = make([]info.FsStats, 1)
		stats.Filesystem[0].Device = "/dev/sda1"
		stats.Filesystem[0].Limit = 1024000000
		stats.Filesystem[0].Usage = 1024000
		ret[i] = stats
	}
	return ret
}
Ejemplo n.º 3
0
func (self *dockerContainerHandler) getFsStats(stats *info.ContainerStats) error {
	// No support for non-aufs storage drivers.
	if !self.usesAufsDriver {
		return nil
	}

	// As of now we assume that all the storage dirs are on the same device.
	// The first storage dir will be that of the image layers.
	deviceInfo, err := self.fsInfo.GetDirFsDevice(self.storageDirs[0])
	if err != nil {
		return err
	}

	mi, err := self.machineInfoFactory.GetMachineInfo()
	if err != nil {
		return err
	}
	var limit uint64 = 0
	// Docker does not impose any filesystem limits for containers. So use capacity as limit.
	for _, fs := range mi.Filesystems {
		if fs.Device == deviceInfo.Device {
			limit = fs.Capacity
			break
		}
	}

	fsStat := info.FsStats{Device: deviceInfo.Device, Limit: limit}

	var usage uint64 = 0
	for _, dir := range self.storageDirs {
		// TODO(Vishh): Add support for external mounts.
		dirUsage, err := self.fsInfo.GetDirUsage(dir)
		if err != nil {
			return err
		}
		usage += dirUsage
	}
	fsStat.Usage = usage
	stats.Filesystem = append(stats.Filesystem, fsStat)

	return nil
}