api

Documentation

Index

• func NewHandler(ctx context.Context, svr *server.Server) (http.Handler, server.ServiceGroup, error)
• func TopNRegions(regions []*core.RegionInfo, less func(a, b *core.RegionInfo) bool, n int) []*core.RegionInfo
• type Health
• type HotStoreStats
• type MetaStore
• type PeerStats
• type Recommendation
• type RegionHeap
  • func (h *RegionHeap) Len() int
  • func (h *RegionHeap) Less(i, j int) bool
  • func (h *RegionHeap) Min() *core.RegionInfo
  • func (h *RegionHeap) Pop() interface{}
  • func (h *RegionHeap) Push(x interface{})
  • func (h *RegionHeap) Swap(i, j int)
• type RegionInfo
  • func InitRegion(r *core.RegionInfo, s *RegionInfo) *RegionInfo
  • func NewRegionInfo(r *core.RegionInfo) *RegionInfo
• type RegionsInfo
• type StoreInfo
• type StoreStatus
• type StoresInfo
• type Trend

Functions

func NewHandler

func NewHandler(ctx context.Context, svr *server.Server) (http.Handler, server.ServiceGroup, error)

NewHandler creates a HTTP handler for API.

func TopNRegions

func TopNRegions(regions []*core.RegionInfo, less func(a, b *core.RegionInfo) bool, n int) []*core.RegionInfo

TopNRegions returns top n regions according to the given rule.

Types

type Health

type Health struct {
	Name       string   `json:"name"`
	MemberID   uint64   `json:"member_id"`
	ClientUrls []string `json:"client_urls"`
	Health     bool     `json:"health"`
}

Health reflects the cluster's health.

type HotStoreStats

type HotStoreStats struct {
	BytesWriteStats map[uint64]float64 `json:"bytes-write-rate,omitempty"`
	BytesReadStats  map[uint64]float64 `json:"bytes-read-rate,omitempty"`
	KeysWriteStats  map[uint64]float64 `json:"keys-write-rate,omitempty"`
	KeysReadStats   map[uint64]float64 `json:"keys-read-rate,omitempty"`
}

HotStoreStats is used to record the status of hot stores.

type MetaStore

type MetaStore struct {
	*metapb.Store
	StateName string `json:"state_name"`
}

MetaStore contains meta information about a store.

type PeerStats

type PeerStats struct {
	Name       string    `json:"name"`
	ID         string    `json:"id"`
	State      string    `json:"state"`
	StartTime  time.Time `json:"startTime"`
	LeaderInfo struct {
		Leader    string    `json:"leader"`
		Uptime    string    `json:"uptime"`
		StartTime time.Time `json:"startTime"`
	} `json:"leaderInfo"`
	RecvAppendRequestCnt int `json:"recvAppendRequestCnt"`
	SendAppendRequestCnt int `json:"sendAppendRequestCnt"`
}

PeerStats is the etcd peers' stats.

type Recommendation

type Recommendation struct {
	Module      string `json:"module"`
	Level       string `json:"level"`
	Description string `json:"description"`
	Instruction string `json:"instruction"`
}

Recommendation contains a potential problem and possible way to deal with it.

type RegionHeap

type RegionHeap struct {
	// contains filtered or unexported fields
}

RegionHeap implements heap.Interface, used for selecting top n regions.

func (*RegionHeap) Len

func (h *RegionHeap) Len() int

func (*RegionHeap) Less

func (h *RegionHeap) Less(i, j int) bool

func (*RegionHeap) Min

func (h *RegionHeap) Min() *core.RegionInfo

Min returns the minimum region from the heap.

func (*RegionHeap) Pop

func (h *RegionHeap) Pop() interface{}

Pop removes the minimum element (according to Less) from the heap and returns it.

func (*RegionHeap) Push

func (h *RegionHeap) Push(x interface{})

Push pushes an element x onto the heap.

func (*RegionHeap) Swap

func (h *RegionHeap) Swap(i, j int)

type RegionInfo

type RegionInfo struct {
	ID          uint64              `json:"id"`
	StartKey    string              `json:"start_key"`
	EndKey      string              `json:"end_key"`
	RegionEpoch *metapb.RegionEpoch `json:"epoch,omitempty"`
	Peers       []*metapb.Peer      `json:"peers,omitempty"`

	Leader          *metapb.Peer      `json:"leader,omitempty"`
	DownPeers       []*pdpb.PeerStats `json:"down_peers,omitempty"`
	PendingPeers    []*metapb.Peer    `json:"pending_peers,omitempty"`
	WrittenBytes    uint64            `json:"written_bytes"`
	ReadBytes       uint64            `json:"read_bytes"`
	WrittenKeys     uint64            `json:"written_keys"`
	ReadKeys        uint64            `json:"read_keys"`
	ApproximateSize int64             `json:"approximate_size"`
	ApproximateKeys int64             `json:"approximate_keys"`
}

RegionInfo records detail region info for api usage.

func InitRegion

func InitRegion(r *core.RegionInfo, s *RegionInfo) *RegionInfo

InitRegion init a new api RegionInfo from the core.RegionInfo.

func NewRegionInfo

func NewRegionInfo(r *core.RegionInfo) *RegionInfo

NewRegionInfo create a new api RegionInfo.

type RegionsInfo

type RegionsInfo struct {
	Count   int           `json:"count"`
	Regions []*RegionInfo `json:"regions"`
}

RegionsInfo contains some regions with the detailed region info.

type StoreInfo

type StoreInfo struct {
	Store  *MetaStore   `json:"store"`
	Status *StoreStatus `json:"status"`
}

StoreInfo contains information about a store.

type StoreStatus

type StoreStatus struct {
	Capacity           typeutil.ByteSize  `json:"capacity"`
	Available          typeutil.ByteSize  `json:"available"`
	UsedSize           typeutil.ByteSize  `json:"used_size"`
	LeaderCount        int                `json:"leader_count"`
	LeaderWeight       float64            `json:"leader_weight"`
	LeaderScore        float64            `json:"leader_score"`
	LeaderSize         int64              `json:"leader_size"`
	RegionCount        int                `json:"region_count"`
	RegionWeight       float64            `json:"region_weight"`
	RegionScore        float64            `json:"region_score"`
	RegionSize         int64              `json:"region_size"`
	SendingSnapCount   uint32             `json:"sending_snap_count,omitempty"`
	ReceivingSnapCount uint32             `json:"receiving_snap_count,omitempty"`
	ApplyingSnapCount  uint32             `json:"applying_snap_count,omitempty"`
	IsBusy             bool               `json:"is_busy,omitempty"`
	StartTS            *time.Time         `json:"start_ts,omitempty"`
	LastHeartbeatTS    *time.Time         `json:"last_heartbeat_ts,omitempty"`
	Uptime             *typeutil.Duration `json:"uptime,omitempty"`
}

StoreStatus contains status about a store.

type StoresInfo

type StoresInfo struct {
	Count  int          `json:"count"`
	Stores []*StoreInfo `json:"stores"`
}

StoresInfo records stores' info.

type Trend

type Trend struct {
	Stores  []trendStore  `json:"stores"`
	History *trendHistory `json:"history"`
}

Trend describes the cluster's schedule trend.