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Package v1

v0.37.0
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Published: Jul 8, 2020 | License: Apache-2.0 | Module: github.com/google/cadvisor

Overview

Types used for docker containers.

Index

Package Files

Constants

const (
	UnknownInstance = "Unknown"
)

type AcceleratorStats

type AcceleratorStats struct {
	// Make of the accelerator (nvidia, amd, google etc.)
	Make string `json:"make"`

	// Model of the accelerator (tesla-p100, tesla-k80 etc.)
	Model string `json:"model"`

	// ID of the accelerator.
	ID string `json:"id"`

	// Total accelerator memory.
	// unit: bytes
	MemoryTotal uint64 `json:"memory_total"`

	// Total accelerator memory allocated.
	// unit: bytes
	MemoryUsed uint64 `json:"memory_used"`

	// Percent of time over the past sample period during which
	// the accelerator was actively processing.
	DutyCycle uint64 `json:"duty_cycle"`
}

type Cache

type Cache struct {
	// Size of memory cache in bytes.
	Size uint64 `json:"size"`
	// Type of memory cache: data, instruction, or unified.
	Type string `json:"type"`
	// Level (distance from cpus) in a multi-level cache hierarchy.
	Level int `json:"level"`
}

type CacheStats

type CacheStats struct {
	// The 'llc_occupancy'.
	LLCOccupancy uint64 `json:"llc_occupancy,omitempty"`
}

CacheStats corresponds to CMT (Cache Monitoring Technology). See: https://01.org/cache-monitoring-technology See: https://www.kernel.org/doc/Documentation/x86/intel_rdt_ui.txt

type CloudProvider

type CloudProvider string
const (
	GCE             CloudProvider = "GCE"
	AWS             CloudProvider = "AWS"
	Azure           CloudProvider = "Azure"
	UnknownProvider CloudProvider = "Unknown"
)

type ContainerInfo

type ContainerInfo struct {
	ContainerReference

	// The direct subcontainers of the current container.
	Subcontainers []ContainerReference `json:"subcontainers,omitempty"`

	// The isolation used in the container.
	Spec ContainerSpec `json:"spec,omitempty"`

	// Historical statistics gathered from the container.
	Stats []*ContainerStats `json:"stats,omitempty"`
}

func (*ContainerInfo) Eq

func (ci *ContainerInfo) Eq(b *ContainerInfo) bool

TODO(vmarmol): Refactor to not need this equality comparison. ContainerInfo may be (un)marshaled by json or other en/decoder. In that case, the Timestamp field in each stats/sample may not be precisely en/decoded. This will lead to small but acceptable differences between a ContainerInfo and its encode-then-decode version. Eq() is used to compare two ContainerInfo accepting small difference (<10ms) of Time fields.

func (*ContainerInfo) StatsAfter

func (ci *ContainerInfo) StatsAfter(ref time.Time) []*ContainerStats

func (*ContainerInfo) StatsEndTime

func (ci *ContainerInfo) StatsEndTime() time.Time

func (*ContainerInfo) StatsStartTime

func (ci *ContainerInfo) StatsStartTime() time.Time

type ContainerInfoRequest

type ContainerInfoRequest struct {
	// Max number of stats to return. Specify -1 for all stats currently available.
	// Default: 60
	NumStats int `json:"num_stats,omitempty"`

	// Start time for which to query information.
	// If omitted, the beginning of time is assumed.
	Start time.Time `json:"start,omitempty"`

	// End time for which to query information.
	// If omitted, current time is assumed.
	End time.Time `json:"end,omitempty"`
}

ContainerInfoRequest is used when users check a container info from the REST API. It specifies how much data users want to get about a container

func DefaultContainerInfoRequest

func DefaultContainerInfoRequest() ContainerInfoRequest

Returns a ContainerInfoRequest with all default values specified.

func (*ContainerInfoRequest) Equals

func (r *ContainerInfoRequest) Equals(other ContainerInfoRequest) bool

type ContainerReference

type ContainerReference struct {
	// The container id
	Id string `json:"id,omitempty"`

	// The absolute name of the container. This is unique on the machine.
	Name string `json:"name"`

	// Other names by which the container is known within a certain namespace.
	// This is unique within that namespace.
	Aliases []string `json:"aliases,omitempty"`

	// Namespace under which the aliases of a container are unique.
	// An example of a namespace is "docker" for Docker containers.
	Namespace string `json:"namespace,omitempty"`
}

Container reference contains enough information to uniquely identify a container

type ContainerReferenceSlice

type ContainerReferenceSlice []ContainerReference

Sorts by container name.

func (ContainerReferenceSlice) Len

func (s ContainerReferenceSlice) Len() int

func (ContainerReferenceSlice) Less

func (s ContainerReferenceSlice) Less(i, j int) bool

func (ContainerReferenceSlice) Swap

func (s ContainerReferenceSlice) Swap(i, j int)

type ContainerSpec

type ContainerSpec struct {
	// Time at which the container was created.
	CreationTime time.Time `json:"creation_time,omitempty"`

	// Metadata labels associated with this container.
	Labels map[string]string `json:"labels,omitempty"`
	// Metadata envs associated with this container. Only whitelisted envs are added.
	Envs map[string]string `json:"envs,omitempty"`

	HasCpu bool    `json:"has_cpu"`
	Cpu    CpuSpec `json:"cpu,omitempty"`

	HasMemory bool       `json:"has_memory"`
	Memory    MemorySpec `json:"memory,omitempty"`

	HasHugetlb bool `json:"has_hugetlb"`

	HasNetwork bool `json:"has_network"`

	HasProcesses bool        `json:"has_processes"`
	Processes    ProcessSpec `json:"processes,omitempty"`

	HasFilesystem bool `json:"has_filesystem"`

	// HasDiskIo when true, indicates that DiskIo stats will be available.
	HasDiskIo bool `json:"has_diskio"`

	HasCustomMetrics bool         `json:"has_custom_metrics"`
	CustomMetrics    []MetricSpec `json:"custom_metrics,omitempty"`

	// Image name used for this container.
	Image string `json:"image,omitempty"`
}

func (*ContainerSpec) Eq

func (s *ContainerSpec) Eq(b *ContainerSpec) bool

type ContainerStats

type ContainerStats struct {
	// The time of this stat point.
	Timestamp time.Time               `json:"timestamp"`
	Cpu       CpuStats                `json:"cpu,omitempty"`
	DiskIo    DiskIoStats             `json:"diskio,omitempty"`
	Memory    MemoryStats             `json:"memory,omitempty"`
	Hugetlb   map[string]HugetlbStats `json:"hugetlb,omitempty"`
	Network   NetworkStats            `json:"network,omitempty"`
	// Filesystem statistics
	Filesystem []FsStats `json:"filesystem,omitempty"`

	// Task load stats
	TaskStats LoadStats `json:"task_stats,omitempty"`

	// Metrics for Accelerators. Each Accelerator corresponds to one element in the array.
	Accelerators []AcceleratorStats `json:"accelerators,omitempty"`

	// ProcessStats for Containers
	Processes ProcessStats `json:"processes,omitempty"`

	// Custom metrics from all collectors
	CustomMetrics map[string][]MetricVal `json:"custom_metrics,omitempty"`

	// Statistics originating from perf events
	PerfStats []PerfStat `json:"perf_stats,omitempty"`

	// Statistics originating from perf uncore events.
	// Applies only for root container.
	PerfUncoreStats []PerfUncoreStat `json:"perf_uncore_stats,omitempty"`

	// Referenced memory
	ReferencedMemory uint64 `json:"referenced_memory,omitempty"`

	// Resource Control (resctrl) statistics
	Resctrl ResctrlStats `json:"resctrl,omitempty"`
}

func (*ContainerStats) Eq

func (a *ContainerStats) Eq(b *ContainerStats) bool

This function is useful because we do not require precise time representation.

func (*ContainerStats) StatsEq

func (a *ContainerStats) StatsEq(b *ContainerStats) bool

Checks equality of the stats values.

type Core

type Core struct {
	Id       int     `json:"core_id"`
	Threads  []int   `json:"thread_ids"`
	Caches   []Cache `json:"caches"`
	SocketID int     `json:"socket_id"`
}

type CpuCFS

type CpuCFS struct {
	// Total number of elapsed enforcement intervals.
	Periods uint64 `json:"periods"`

	// Total number of times tasks in the cgroup have been throttled.
	ThrottledPeriods uint64 `json:"throttled_periods"`

	// Total time duration for which tasks in the cgroup have been throttled.
	// Unit: nanoseconds.
	ThrottledTime uint64 `json:"throttled_time"`
}

Cpu Completely Fair Scheduler statistics.

type CpuSchedstat

type CpuSchedstat struct {

	// time spent on the cpu
	RunTime uint64 `json:"run_time"`
	// time spent waiting on a runqueue
	RunqueueTime uint64 `json:"runqueue_time"`
	// # of timeslices run on this cpu
	RunPeriods uint64 `json:"run_periods"`
}

Cpu Aggregated scheduler statistics

type CpuSpec

type CpuSpec struct {
	Limit    uint64 `json:"limit"`
	MaxLimit uint64 `json:"max_limit"`
	Mask     string `json:"mask,omitempty"`
	Quota    uint64 `json:"quota,omitempty"`
	Period   uint64 `json:"period,omitempty"`
}

type CpuStats

type CpuStats struct {
	Usage     CpuUsage     `json:"usage"`
	CFS       CpuCFS       `json:"cfs"`
	Schedstat CpuSchedstat `json:"schedstat"`
	// Smoothed average of number of runnable threads x 1000.
	// We multiply by thousand to avoid using floats, but preserving precision.
	// Load is smoothed over the last 10 seconds. Instantaneous value can be read
	// from LoadStats.NrRunning.
	LoadAverage int32 `json:"load_average"`
}

All CPU usage metrics are cumulative from the creation of the container

type CpuUsage

type CpuUsage struct {
	// Total CPU usage.
	// Unit: nanoseconds.
	Total uint64 `json:"total"`

	// Per CPU/core usage of the container.
	// Unit: nanoseconds.
	PerCpu []uint64 `json:"per_cpu_usage,omitempty"`

	// Time spent in user space.
	// Unit: nanoseconds.
	User uint64 `json:"user"`

	// Time spent in kernel space.
	// Unit: nanoseconds.
	System uint64 `json:"system"`
}

CPU usage time statistics.

type DataType

type DataType string

DataType for metric being exported.

const (
	IntType   DataType = "int"
	FloatType DataType = "float"
)

type DiskInfo

type DiskInfo struct {
	// device name
	Name string `json:"name"`

	// Major number
	Major uint64 `json:"major"`

	// Minor number
	Minor uint64 `json:"minor"`

	// Size in bytes
	Size uint64 `json:"size"`

	// I/O Scheduler - one of "none", "noop", "cfq", "deadline"
	Scheduler string `json:"scheduler"`
}

type DiskIoStats

type DiskIoStats struct {
	IoServiceBytes []PerDiskStats `json:"io_service_bytes,omitempty"`
	IoServiced     []PerDiskStats `json:"io_serviced,omitempty"`
	IoQueued       []PerDiskStats `json:"io_queued,omitempty"`
	Sectors        []PerDiskStats `json:"sectors,omitempty"`
	IoServiceTime  []PerDiskStats `json:"io_service_time,omitempty"`
	IoWaitTime     []PerDiskStats `json:"io_wait_time,omitempty"`
	IoMerged       []PerDiskStats `json:"io_merged,omitempty"`
	IoTime         []PerDiskStats `json:"io_time,omitempty"`
}

type DockerImage

type DockerImage struct {
	ID          string   `json:"id"`
	RepoTags    []string `json:"repo_tags"` // repository name and tags.
	Created     int64    `json:"created"`   // unix time since creation.
	VirtualSize int64    `json:"virtual_size"`
	Size        int64    `json:"size"`
}

type DockerStatus

type DockerStatus struct {
	Version       string            `json:"version"`
	APIVersion    string            `json:"api_version"`
	KernelVersion string            `json:"kernel_version"`
	OS            string            `json:"os"`
	Hostname      string            `json:"hostname"`
	RootDir       string            `json:"root_dir"`
	Driver        string            `json:"driver"`
	DriverStatus  map[string]string `json:"driver_status"`
	ExecDriver    string            `json:"exec_driver"`
	NumImages     int               `json:"num_images"`
	NumContainers int               `json:"num_containers"`
}

type Event

type Event struct {
	// the absolute container name for which the event occurred
	ContainerName string `json:"container_name"`

	// the time at which the event occurred
	Timestamp time.Time `json:"timestamp"`

	// the type of event. EventType is an enumerated type
	EventType EventType `json:"event_type"`

	// the original event object and all of its extraneous data, ex. an
	// OomInstance
	EventData EventData `json:"event_data,omitempty"`
}

Event contains information general to events such as the time at which they occurred, their specific type, and the actual event. Event types are differentiated by the EventType field of Event.

type EventData

type EventData struct {
	// Information about an OOM kill event.
	OomKill *OomKillEventData `json:"oom,omitempty"`
}

Extra information about an event. Only one type will be set.

type EventType

type EventType string

EventType is an enumerated type which lists the categories under which events may fall. The Event field EventType is populated by this enum.

const (
	EventOom               EventType = "oom"
	EventOomKill           EventType = "oomKill"
	EventContainerCreation EventType = "containerCreation"
	EventContainerDeletion EventType = "containerDeletion"
)

type FsInfo

type FsInfo struct {
	// Block device associated with the filesystem.
	Device string `json:"device"`
	// DeviceMajor is the major identifier of the device, used for correlation with blkio stats
	DeviceMajor uint64 `json:"-"`
	// DeviceMinor is the minor identifier of the device, used for correlation with blkio stats
	DeviceMinor uint64 `json:"-"`

	// Total number of bytes available on the filesystem.
	Capacity uint64 `json:"capacity"`

	// Type of device.
	Type string `json:"type"`

	// Total number of inodes available on the filesystem.
	Inodes uint64 `json:"inodes"`

	// HasInodes when true, indicates that Inodes info will be available.
	HasInodes bool `json:"has_inodes"`
}

type FsStats

type FsStats struct {
	// The block device name associated with the filesystem.
	Device string `json:"device,omitempty"`

	// Type of the filesytem.
	Type string `json:"type"`

	// Number of bytes that can be consumed by the container on this filesystem.
	Limit uint64 `json:"capacity"`

	// Number of bytes that is consumed by the container on this filesystem.
	Usage uint64 `json:"usage"`

	// Base Usage that is consumed by the container's writable layer.
	// This field is only applicable for docker container's as of now.
	BaseUsage uint64 `json:"base_usage"`

	// Number of bytes available for non-root user.
	Available uint64 `json:"available"`

	// HasInodes when true, indicates that Inodes info will be available.
	HasInodes bool `json:"has_inodes"`

	// Number of Inodes
	Inodes uint64 `json:"inodes"`

	// Number of available Inodes
	InodesFree uint64 `json:"inodes_free"`

	// Number of reads completed
	// This is the total number of reads completed successfully.
	ReadsCompleted uint64 `json:"reads_completed"`

	// Number of reads merged
	// Reads and writes which are adjacent to each other may be merged for
	// efficiency.  Thus two 4K reads may become one 8K read before it is
	// ultimately handed to the disk, and so it will be counted (and queued)
	// as only one I/O.  This field lets you know how often this was done.
	ReadsMerged uint64 `json:"reads_merged"`

	// Number of sectors read
	// This is the total number of sectors read successfully.
	SectorsRead uint64 `json:"sectors_read"`

	// Number of milliseconds spent reading
	// This is the total number of milliseconds spent by all reads (as
	// measured from __make_request() to end_that_request_last()).
	ReadTime uint64 `json:"read_time"`

	// Number of writes completed
	// This is the total number of writes completed successfully.
	WritesCompleted uint64 `json:"writes_completed"`

	// Number of writes merged
	// See the description of reads merged.
	WritesMerged uint64 `json:"writes_merged"`

	// Number of sectors written
	// This is the total number of sectors written successfully.
	SectorsWritten uint64 `json:"sectors_written"`

	// Number of milliseconds spent writing
	// This is the total number of milliseconds spent by all writes (as
	// measured from __make_request() to end_that_request_last()).
	WriteTime uint64 `json:"write_time"`

	// Number of I/Os currently in progress
	// The only field that should go to zero. Incremented as requests are
	// given to appropriate struct request_queue and decremented as they finish.
	IoInProgress uint64 `json:"io_in_progress"`

	// Number of milliseconds spent doing I/Os
	// This field increases so long as field 9 is nonzero.
	IoTime uint64 `json:"io_time"`

	// weighted number of milliseconds spent doing I/Os
	// This field is incremented at each I/O start, I/O completion, I/O
	// merge, or read of these stats by the number of I/Os in progress
	// (field 9) times the number of milliseconds spent doing I/O since the
	// last update of this field.  This can provide an easy measure of both
	// I/O completion time and the backlog that may be accumulating.
	WeightedIoTime uint64 `json:"weighted_io_time"`
}

type HugePagesInfo

type HugePagesInfo struct {
	// huge page size (in kB)
	PageSize uint64 `json:"page_size"`

	// number of huge pages
	NumPages uint64 `json:"num_pages"`
}

type HugetlbStats

type HugetlbStats struct {
	// current res_counter usage for hugetlb
	Usage uint64 `json:"usage,omitempty"`
	// maximum usage ever recorded.
	MaxUsage uint64 `json:"max_usage,omitempty"`
	// number of times hugetlb usage allocation failure.
	Failcnt uint64 `json:"failcnt"`
}

type InstanceID

type InstanceID string
const (
	UnNamedInstance InstanceID = "None"
)

type InstanceType

type InstanceType string

type InterfaceStats

type InterfaceStats struct {
	// The name of the interface.
	Name string `json:"name"`
	// Cumulative count of bytes received.
	RxBytes uint64 `json:"rx_bytes"`
	// Cumulative count of packets received.
	RxPackets uint64 `json:"rx_packets"`
	// Cumulative count of receive errors encountered.
	RxErrors uint64 `json:"rx_errors"`
	// Cumulative count of packets dropped while receiving.
	RxDropped uint64 `json:"rx_dropped"`
	// Cumulative count of bytes transmitted.
	TxBytes uint64 `json:"tx_bytes"`
	// Cumulative count of packets transmitted.
	TxPackets uint64 `json:"tx_packets"`
	// Cumulative count of transmit errors encountered.
	TxErrors uint64 `json:"tx_errors"`
	// Cumulative count of packets dropped while transmitting.
	TxDropped uint64 `json:"tx_dropped"`
}

type LoadStats

type LoadStats struct {
	// Number of sleeping tasks.
	NrSleeping uint64 `json:"nr_sleeping"`

	// Number of running tasks.
	NrRunning uint64 `json:"nr_running"`

	// Number of tasks in stopped state
	NrStopped uint64 `json:"nr_stopped"`

	// Number of tasks in uninterruptible state
	NrUninterruptible uint64 `json:"nr_uninterruptible"`

	// Number of tasks waiting on IO
	NrIoWait uint64 `json:"nr_io_wait"`
}

This mirrors kernel internal structure.

type MachineInfo

type MachineInfo struct {
	// The time of this information point.
	Timestamp time.Time `json:"timestamp"`

	// The number of cores in this machine.
	NumCores int `json:"num_cores"`

	// The number of physical cores in this machine.
	NumPhysicalCores int `json:"num_physical_cores"`

	// The number of cpu sockets in this machine.
	NumSockets int `json:"num_sockets"`

	// Maximum clock speed for the cores, in KHz.
	CpuFrequency uint64 `json:"cpu_frequency_khz"`

	// The amount of memory (in bytes) in this machine
	MemoryCapacity uint64 `json:"memory_capacity"`

	// Memory capacity and number of DIMMs by memory type
	MemoryByType map[string]*MemoryInfo `json:"memory_by_type"`

	NVMInfo NVMInfo `json:"nvm"`

	// HugePages on this machine.
	HugePages []HugePagesInfo `json:"hugepages"`

	// The machine id
	MachineID string `json:"machine_id"`

	// The system uuid
	SystemUUID string `json:"system_uuid"`

	// The boot id
	BootID string `json:"boot_id"`

	// Filesystems on this machine.
	Filesystems []FsInfo `json:"filesystems"`

	// Disk map
	DiskMap map[string]DiskInfo `json:"disk_map"`

	// Network devices
	NetworkDevices []NetInfo `json:"network_devices"`

	// Machine Topology
	// Describes cpu/memory layout and hierarchy.
	Topology []Node `json:"topology"`

	// Cloud provider the machine belongs to.
	CloudProvider CloudProvider `json:"cloud_provider"`

	// Type of cloud instance (e.g. GCE standard) the machine is.
	InstanceType InstanceType `json:"instance_type"`

	// ID of cloud instance (e.g. instance-1) given to it by the cloud provider.
	InstanceID InstanceID `json:"instance_id"`
}

func (*MachineInfo) Clone

func (m *MachineInfo) Clone() *MachineInfo

type MachineInfoFactory

type MachineInfoFactory interface {
	GetMachineInfo() (*MachineInfo, error)
	GetVersionInfo() (*VersionInfo, error)
}

type MemoryBandwidthStats

type MemoryBandwidthStats struct {
	// The 'mbm_total_bytes'.
	TotalBytes uint64 `json:"mbm_total_bytes,omitempty"`

	// The 'mbm_local_bytes'.
	LocalBytes uint64 `json:"mbm_local_bytes,omitempty"`
}

MemoryBandwidthStats corresponds to MBM (Memory Bandwidth Monitoring). See: https://01.org/cache-monitoring-technology See: https://www.kernel.org/doc/Documentation/x86/intel_rdt_ui.txt

type MemoryInfo

type MemoryInfo struct {
	// The amount of memory (in bytes).
	Capacity uint64 `json:"capacity"`

	// Number of memory DIMMs.
	DimmCount uint `json:"dimm_count"`
}

type MemorySpec

type MemorySpec struct {
	// The amount of memory requested. Default is unlimited (-1).
	// Units: bytes.
	Limit uint64 `json:"limit,omitempty"`

	// The amount of guaranteed memory.  Default is 0.
	// Units: bytes.
	Reservation uint64 `json:"reservation,omitempty"`

	// The amount of swap space requested. Default is unlimited (-1).
	// Units: bytes.
	SwapLimit uint64 `json:"swap_limit,omitempty"`
}

type MemoryStats

type MemoryStats struct {
	// Current memory usage, this includes all memory regardless of when it was
	// accessed.
	// Units: Bytes.
	Usage uint64 `json:"usage"`

	// Maximum memory usage recorded.
	// Units: Bytes.
	MaxUsage uint64 `json:"max_usage"`

	// Number of bytes of page cache memory.
	// Units: Bytes.
	Cache uint64 `json:"cache"`

	// The amount of anonymous and swap cache memory (includes transparent
	// hugepages).
	// Units: Bytes.
	RSS uint64 `json:"rss"`

	// The amount of swap currently used by the processes in this cgroup
	// Units: Bytes.
	Swap uint64 `json:"swap"`

	// The amount of memory used for mapped files (includes tmpfs/shmem)
	MappedFile uint64 `json:"mapped_file"`

	// The amount of working set memory, this includes recently accessed memory,
	// dirty memory, and kernel memory. Working set is <= "usage".
	// Units: Bytes.
	WorkingSet uint64 `json:"working_set"`

	Failcnt uint64 `json:"failcnt"`

	ContainerData    MemoryStatsMemoryData `json:"container_data,omitempty"`
	HierarchicalData MemoryStatsMemoryData `json:"hierarchical_data,omitempty"`
}

type MemoryStatsMemoryData

type MemoryStatsMemoryData struct {
	Pgfault    uint64 `json:"pgfault"`
	Pgmajfault uint64 `json:"pgmajfault"`
}

type MetricSpec

type MetricSpec struct {
	// The name of the metric.
	Name string `json:"name"`

	// Type of the metric.
	Type MetricType `json:"type"`

	// Data Type for the stats.
	Format DataType `json:"format"`

	// Display Units for the stats.
	Units string `json:"units"`
}

Spec for custom metric.

type MetricType

type MetricType string

Type of metric being exported.

const (
	// Instantaneous value. May increase or decrease.
	MetricGauge MetricType = "gauge"

	// A counter-like value that is only expected to increase.
	MetricCumulative MetricType = "cumulative"
)

type MetricVal

type MetricVal struct {
	// Label associated with a metric
	Label  string            `json:"label,omitempty"`
	Labels map[string]string `json:"labels,omitempty"`

	// Time at which the metric was queried
	Timestamp time.Time `json:"timestamp"`

	// The value of the metric at this point.
	IntValue   int64   `json:"int_value,omitempty"`
	FloatValue float64 `json:"float_value,omitempty"`
}

An exported metric.

type MetricValBasic

type MetricValBasic struct {
	// Time at which the metric was queried
	Timestamp time.Time `json:"timestamp"`

	// The value of the metric at this point.
	IntValue   int64   `json:"int_value,omitempty"`
	FloatValue float64 `json:"float_value,omitempty"`
}

An exported metric.

type NVMInfo

type NVMInfo struct {
	// The total NVM capacity in bytes for memory mode.
	MemoryModeCapacity uint64 `json:"memory_mode_capacity"`

	//The total NVM capacity in bytes for app direct mode.
	AppDirectModeCapacity uint64 `json:"app direct_mode_capacity"`

	// Average power budget in watts for NVM devices configured in BIOS.
	AvgPowerBudget uint `json:"avg_power_budget"`
}

type NetInfo

type NetInfo struct {
	// Device name
	Name string `json:"name"`

	// Mac Address
	MacAddress string `json:"mac_address"`

	// Speed in MBits/s
	Speed int64 `json:"speed"`

	// Maximum Transmission Unit
	Mtu int64 `json:"mtu"`
}

type NetworkStats

type NetworkStats struct {
	InterfaceStats `json:",inline"`
	Interfaces     []InterfaceStats `json:"interfaces,omitempty"`
	// TCP connection stats (Established, Listen...)
	Tcp TcpStat `json:"tcp"`
	// TCP6 connection stats (Established, Listen...)
	Tcp6 TcpStat `json:"tcp6"`
	// UDP connection stats
	Udp UdpStat `json:"udp"`
	// UDP6 connection stats
	Udp6 UdpStat `json:"udp6"`
	// TCP advanced stats
	TcpAdvanced TcpAdvancedStat `json:"tcp_advanced"`
}

type Node

type Node struct {
	Id int `json:"node_id"`
	// Per-node memory
	Memory    uint64          `json:"memory"`
	HugePages []HugePagesInfo `json:"hugepages"`
	Cores     []Core          `json:"cores"`
	Caches    []Cache         `json:"caches"`
}

func (*Node) AddNodeCache

func (n *Node) AddNodeCache(c Cache)

func (*Node) AddPerCoreCache

func (n *Node) AddPerCoreCache(c Cache)

func (*Node) AddThread

func (n *Node) AddThread(thread int, core int)

func (*Node) FindCore

func (n *Node) FindCore(id int) (bool, int)

func (*Node) FindCoreByThread

func (n *Node) FindCoreByThread(thread int) (bool, int)

FindCoreByThread returns bool if found Core with same thread as provided and it's index in Node Core array. If it's not found, returns false and -1.

type OomKillEventData

type OomKillEventData struct {
	// process id of the killed process
	Pid int `json:"pid"`

	// The name of the killed process
	ProcessName string `json:"process_name"`
}

Information related to an OOM kill instance

type PerDiskStats

type PerDiskStats struct {
	Device string            `json:"device"`
	Major  uint64            `json:"major"`
	Minor  uint64            `json:"minor"`
	Stats  map[string]uint64 `json:"stats"`
}

type PerfStat

type PerfStat struct {
	// Indicates scaling ratio for an event: time_running/time_enabled
	// (amount of time that event was being measured divided by
	// amount of time that event was enabled for).
	// value 1.0 indicates that no multiplexing occurred. Value close
	// to 0 indicates that event was measured for short time and event's
	// value might be inaccurate.
	// See: https://lwn.net/Articles/324756/
	ScalingRatio float64 `json:"scaling_ratio"`

	// Value represents value of perf event retrieved from OS. It is
	// normalized against ScalingRatio and takes multiplexing into
	// consideration.
	Value uint64 `json:"value"`

	// Name is human readable name of an event.
	Name string `json:"name"`

	// CPU that perf event was measured on.
	Cpu int `json:"cpu"`
}

PerfStat represents value of a single monitored perf event.

type PerfUncoreStat

type PerfUncoreStat struct {
	// Indicates scaling ratio for an event: time_running/time_enabled
	// (amount of time that event was being measured divided by
	// amount of time that event was enabled for).
	// value 1.0 indicates that no multiplexing occurred. Value close
	// to 0 indicates that event was measured for short time and event's
	// value might be inaccurate.
	// See: https://lwn.net/Articles/324756/
	ScalingRatio float64 `json:"scaling_ratio"`

	// Value represents value of perf event retrieved from OS. It is
	// normalized against ScalingRatio and takes multiplexing into
	// consideration.
	Value uint64 `json:"value"`

	// Name is human readable name of an event.
	Name string `json:"name"`

	// Socket that perf event was measured on.
	Socket int `json:"socket"`

	// PMU is Performance Monitoring Unit which collected these stats.
	PMU string `json:"pmu"`
}

PerfUncoreStat represents value of a single monitored perf uncore event.

type ProcessSpec

type ProcessSpec struct {
	Limit uint64 `json:"limit,omitempty"`
}

type ProcessStats

type ProcessStats struct {
	// Number of processes
	ProcessCount uint64 `json:"process_count"`

	// Number of open file descriptors
	FdCount uint64 `json:"fd_count"`

	// Number of sockets
	SocketCount uint64 `json:"socket_count"`

	// Number of threads currently in container
	ThreadsCurrent uint64 `json:"threads_current,omitempty"`

	// Maxium number of threads allowed in container
	ThreadsMax uint64 `json:"threads_max,omitempty"`

	// Ulimits for the top-level container process
	Ulimits []UlimitSpec `json:"ulimits,omitempty"`
}

type ResctrlStats

type ResctrlStats struct {
	// Each NUMA Node statistics corresponds to one element in the array.
	MemoryBandwidth []MemoryBandwidthStats `json:"memory_bandwidth,omitempty"`
	Cache           []CacheStats           `json:"cache,omitempty"`
}

ResctrlStats corresponds to statistics from Resource Control.

type TcpAdvancedStat

type TcpAdvancedStat struct {
	// The algorithm used to determine the timeout value used for
	// retransmitting unacknowledged octets, ref: RFC2698, default 1
	RtoAlgorithm uint64
	// The minimum value permitted by a TCP implementation for the
	// retransmission timeout, measured in milliseconds, default 200ms
	RtoMin uint64
	// The maximum value permitted by a TCP implementation for the
	// retransmission timeout, measured in milliseconds, default 120s
	RtoMax uint64
	// The limit on the total number of TCP connections the entity
	// can support., default -1, i.e. infinity
	MaxConn int64

	// The number of times TCP connections have made a direct
	// transition to the SYN-SENT state from the CLOSED state.
	ActiveOpens uint64
	// The number of times TCP connections have made a direct
	// transition to the SYN-RCVD state from the LISTEN state.
	PassiveOpens uint64
	// The number of times TCP connections have made a direct
	// transition to the CLOSED state from either the SYN-SENT
	// state or the SYN-RCVD state, plus the number of times TCP
	// connections have made a direct transition to the LISTEN
	// state from the SYN-RCVD state.
	AttemptFails uint64
	// The number of times TCP connections have made a direct
	// transition to the CLOSED state from either the ESTABLISHED
	// state or the CLOSE-WAIT state.
	EstabResets uint64
	// The number of TCP connections for which the current state
	// is either ESTABLISHED or CLOSE- WAIT.
	CurrEstab uint64

	// The total number of segments received, including those
	// received in error.
	InSegs uint64
	// The total number of segments sent, including those on
	// current connections but excluding those containing only
	// retransmitted octets.
	OutSegs uint64
	// The total number of segments retransmitted - that is, the
	// number of TCP segments transmitted containing one or more
	// previously transmitted octets.
	RetransSegs uint64
	// The total number of segments received in error (e.g., bad
	// TCP checksums).
	InErrs uint64
	// The number of TCP segments sent containing the RST flag.
	OutRsts uint64
	// The number of IP Packets with checksum errors
	InCsumErrors uint64
	// The number of resets received for embryonic SYN_RECV sockets
	EmbryonicRsts uint64

	// The number of SYN cookies sent
	SyncookiesSent uint64
	// The number of SYN cookies received
	SyncookiesRecv uint64
	// The number of invalid SYN cookies received
	SyncookiesFailed uint64

	// The number of packets pruned from receive queue because of socket buffer overrun
	PruneCalled uint64
	// The number of packets pruned from receive queue
	RcvPruned uint64
	// The number of packets dropped from out-of-order queue because of socket buffer overrun
	OfoPruned uint64
	// The number of ICMP packets dropped because they were out-of-window
	OutOfWindowIcmps uint64
	// The number of ICMP packets dropped because socket was locked
	LockDroppedIcmps uint64

	// The number of TCP sockets finished time wait in fast timer
	TW uint64
	// The number of time wait sockets recycled by time stamp
	TWRecycled uint64
	// The number of TCP sockets finished time wait in slow timer
	TWKilled uint64
	// counter, if no more mem for TIME-WAIT struct, +1
	TCPTimeWaitOverflow uint64

	// The number of RTO timer first timeout times
	TCPTimeouts uint64
	// The number of fake timeouts detected by F-RTO
	TCPSpuriousRTOs uint64
	// The number of send Tail Loss Probe (TLP) times by Probe Timeout(PTO)
	TCPLossProbes uint64
	// The number of recovery times by TLP
	TCPLossProbeRecovery uint64
	// The number of RTO failed times when in Recovery state, and remote end has no sack
	TCPRenoRecoveryFail uint64
	// The number of RTO failed times when in Recovery state, and remote end has sack
	TCPSackRecoveryFail uint64
	// The number of RTO failed times when in TCP_CA_Disorder state, and remote end has no sack
	TCPRenoFailures uint64
	// The number of RTO failed times when in TCP_CA_Disorder state, and remote end has sack
	TCPSackFailures uint64
	// The number of RTO failed times when in TCP_CA_Loss state,
	TCPLossFailures uint64

	// The number of delayed acks sent
	DelayedACKs uint64
	// The number of delayed acks further delayed because of locked socket
	DelayedACKLocked uint64
	// The number of quick ack mode was activated times
	DelayedACKLost uint64
	// The number of times the listen queue of a socket overflowed
	ListenOverflows uint64
	// The number of SYNs to LISTEN sockets dropped
	ListenDrops uint64
	// The number of packet headers predicted
	TCPHPHits uint64
	// The number of acknowledgments not containing data payload received
	TCPPureAcks uint64
	// The number of predicted acknowledgments
	TCPHPAcks uint64
	// The number of times recovered from packet loss due to fast retransmit
	TCPRenoRecovery uint64
	// The number of SACK retransmits failed
	TCPSackRecovery uint64
	// The number of bad SACK blocks received
	TCPSACKReneging uint64
	// The number of detected reordering times using FACK
	TCPFACKReorder uint64
	// The number of detected reordering times using SACK
	TCPSACKReorder uint64
	// The number of detected reordering times using Reno
	TCPRenoReorder uint64
	// The number of detected reordering times using time stamp
	TCPTSReorder uint64
	// The number of congestion windows fully recovered without slow start
	TCPFullUndo uint64
	// The number of congestion windows partially recovered using Hoe heuristic
	TCPPartialUndo uint64
	// The number of congestion windows recovered without slow start by DSACK
	TCPDSACKUndo uint64
	// The number of congestion windows recovered without slow start after partial ack
	TCPLossUndo uint64

	// The number of fast retransmits
	TCPFastRetrans uint64
	// The number of retransmits in slow start
	TCPSlowStartRetrans uint64
	// The number of retransmits lost
	TCPLostRetransmit uint64
	// The number of retransmits failed, including FastRetrans, SlowStartRetrans
	TCPRetransFail uint64

	// he number of packets collapsed in receive queue due to low socket buffer
	TCPRcvCollapsed uint64
	// The number of DSACKs sent for old packets
	TCPDSACKOldSent uint64
	// The number of DSACKs sent for out of order packets
	TCPDSACKOfoSent uint64
	// The number of DSACKs received
	TCPDSACKRecv uint64
	// The number of DSACKs for out of order packets received
	TCPDSACKOfoRecv uint64
	// The number of connections reset due to unexpected data
	TCPAbortOnData uint64
	// The number of connections reset due to early user close
	TCPAbortOnClose uint64
	// The number of connections aborted due to memory pressure
	TCPAbortOnMemory uint64
	// The number of connections aborted due to timeout
	TCPAbortOnTimeout uint64
	// The number of connections aborted after user close in linger timeout
	TCPAbortOnLinger uint64
	// The number of times unable to send RST due to no memory
	TCPAbortFailed uint64
	// The number of TCP ran low on memory times
	TCPMemoryPressures uint64
	// The number of TCP cumulative duration of
	// memory pressure events, by ms
	TCPMemoryPressuresChrono uint64
	// The number of SACKs discard
	TCPSACKDiscard uint64
	// The number of DSACKs ignore old
	TCPDSACKIgnoredOld uint64
	// The number of DSACKs ignore no undo
	TCPDSACKIgnoredNoUndo uint64

	// The number of MD5 not found
	TCPMD5NotFound uint64
	// The number of MD5 unexpected
	TCPMD5Unexpected uint64
	// The number of MD5 failed
	TCPMD5Failure uint64
	// The number of Sack shifted
	TCPSackShifted uint64
	// The number of Sack merged
	TCPSackMerged uint64
	// The number of Sack shift fall back
	TCPSackShiftFallback uint64
	// The number of Backlog drop
	TCPBacklogDrop uint64
	// The number of PFmemalloc drop
	PFMemallocDrop uint64
	// The number of memalloc drop
	TCPMinTTLDrop uint64
	// The number of DeferAccept drop
	TCPDeferAcceptDrop uint64
	// The number of IP reverse path filter
	IPReversePathFilter uint64

	// The number of request full do cookies
	TCPReqQFullDoCookies uint64
	// The number of request full drop
	TCPReqQFullDrop uint64

	// number of successful outbound TFO connections
	TCPFastOpenActive uint64
	// number of SYN-ACK packets received that did not acknowledge data
	// sent in the SYN packet and caused a retransmissions without SYN data.
	TCPFastOpenActiveFail uint64
	// number of successful inbound TFO connections
	TCPFastOpenPassive uint64
	// number of inbound SYN packets with TFO cookie that was invalid
	TCPFastOpenPassiveFail uint64
	// number of inbound SYN packets that will have TFO disabled because
	// the socket has exceeded the max queue length
	TCPFastOpenListenOverflow uint64
	// number of inbound SYN packets requesting TFO with TFO set but no cookie
	TCPFastOpenCookieReqd uint64

	// number of SYN and SYN/ACK retransmits to break down retransmissions
	// into SYN, fast-retransmits, timeout retransmits, etc.
	TCPSynRetrans uint64
	// number of outgoing packets with original data
	// (excluding retransmission but including data-in-SYN).
	TCPOrigDataSent uint64

	// The number of active connections rejected because of time stamp
	PAWSActive uint64
	// The number of packetes rejected in established connections because of timestamp
	PAWSEstab uint64
}

type TcpStat

type TcpStat struct {
	// Count of TCP connections in state "Established"
	Established uint64
	// Count of TCP connections in state "Syn_Sent"
	SynSent uint64
	// Count of TCP connections in state "Syn_Recv"
	SynRecv uint64
	// Count of TCP connections in state "Fin_Wait1"
	FinWait1 uint64
	// Count of TCP connections in state "Fin_Wait2"
	FinWait2 uint64
	// Count of TCP connections in state "Time_Wait
	TimeWait uint64
	// Count of TCP connections in state "Close"
	Close uint64
	// Count of TCP connections in state "Close_Wait"
	CloseWait uint64
	// Count of TCP connections in state "Listen_Ack"
	LastAck uint64
	// Count of TCP connections in state "Listen"
	Listen uint64
	// Count of TCP connections in state "Closing"
	Closing uint64
}

type UdpStat

type UdpStat struct {
	// Count of UDP sockets in state "Listen"
	Listen uint64

	// Count of UDP packets dropped by the IP stack
	Dropped uint64

	// Count of packets Queued for Receieve
	RxQueued uint64

	// Count of packets Queued for Transmit
	TxQueued uint64
}

type UlimitSpec

type UlimitSpec struct {
	Name      string `json:"name"`
	SoftLimit int64  `json:"soft_limit"`
	HardLimit int64  `json:"hard_limit"`
}

type VersionInfo

type VersionInfo struct {
	// Kernel version.
	KernelVersion string `json:"kernel_version"`

	// OS image being used for cadvisor container, or host image if running on host directly.
	ContainerOsVersion string `json:"container_os_version"`

	// Docker version.
	DockerVersion string `json:"docker_version"`

	// Docker API Version
	DockerAPIVersion string `json:"docker_api_version"`

	// cAdvisor version.
	CadvisorVersion string `json:"cadvisor_version"`
	// cAdvisor git revision.
	CadvisorRevision string `json:"cadvisor_revision"`
}
Documentation was rendered with GOOS=linux and GOARCH=amd64.

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