Esempio n. 1
0
// Get cgroup and networking stats of the specified container
func GetStats(cgroupManager cgroups.Manager, rootFs string, pid int, ignoreMetrics container.MetricSet) (*info.ContainerStats, error) {
	cgroupStats, err := cgroupManager.GetStats()
	if err != nil {
		return nil, err
	}
	libcontainerStats := &libcontainer.Stats{
		CgroupStats: cgroupStats,
	}
	stats := toContainerStats(libcontainerStats)

	// If we know the pid then get network stats from /proc/<pid>/net/dev
	if pid == 0 {
		return stats, nil
	}
	if !ignoreMetrics.Has(container.NetworkUsageMetrics) {
		netStats, err := networkStatsFromProc(rootFs, pid)
		if err != nil {
			glog.V(2).Infof("Unable to get network stats from pid %d: %v", pid, err)
		} else {
			stats.Network.Interfaces = append(stats.Network.Interfaces, netStats...)
		}
	}
	if !ignoreMetrics.Has(container.NetworkTcpUsageMetrics) {
		t, err := tcpStatsFromProc(rootFs, pid, "net/tcp")
		if err != nil {
			glog.V(2).Infof("Unable to get tcp stats from pid %d: %v", pid, err)
		} else {
			stats.Network.Tcp = t
		}

		t6, err := tcpStatsFromProc(rootFs, pid, "net/tcp6")
		if err != nil {
			glog.V(2).Infof("Unable to get tcp6 stats from pid %d: %v", pid, err)
		} else {
			stats.Network.Tcp6 = t6
		}
	}

	// For backwards compatibility.
	if len(stats.Network.Interfaces) > 0 {
		stats.Network.InterfaceStats = stats.Network.Interfaces[0]
	}

	return stats, nil
}
Esempio n. 2
0
// Get cgroup and networking stats of the specified container
func GetStats(cgroupManager cgroups.Manager, rootFs string, pid int) (*info.ContainerStats, error) {
	cgroupStats, err := cgroupManager.GetStats()
	if err != nil {
		return nil, err
	}
	libcontainerStats := &libcontainer.Stats{
		CgroupStats: cgroupStats,
	}
	stats := toContainerStats(libcontainerStats)

	// If we know the pid then get network stats from /proc/<pid>/net/dev
	if pid > 0 {
		netStats, err := networkStatsFromProc(rootFs, pid)
		if err != nil {
			glog.V(2).Infof("Unable to get network stats from pid %d: %v", pid, err)
		} else {
			stats.Network.Interfaces = append(stats.Network.Interfaces, netStats...)
		}

		// Commenting out to disable: too CPU intensive
		/*t, err := tcpStatsFromProc(rootFs, pid, "net/tcp")
		if err != nil {
			glog.V(2).Infof("Unable to get tcp stats from pid %d: %v", pid, err)
		} else {
			stats.Network.Tcp = t
		}

		t6, err := tcpStatsFromProc(rootFs, pid, "net/tcp6")
		if err != nil {
			glog.V(2).Infof("Unable to get tcp6 stats from pid %d: %v", pid, err)
		} else {
			stats.Network.Tcp6 = t6
		}*/
	}

	// For backwards compatibility.
	if len(stats.Network.Interfaces) > 0 {
		stats.Network.InterfaceStats = stats.Network.Interfaces[0]
	}

	return stats, nil
}