db

Documentation

Index

• Variables
• func CheckOccurences(occurences []int64, numTimes int, numSecs int) (occurred bool)
• func HandleRecovery(forceNormal bool, forceDegraded bool, forceMaintenance bool, currTime int64)
• func IsNormalMode() bool
• type DegradedModeHandler
  • func (handler *DegradedModeHandler) Handle()
  • func (handler *DegradedModeHandler) HasThresholdReached() bool
  • func (handler *DegradedModeHandler) RecordAppStart(currTime int64)
• type MaintenanceModeHandler
  • func (handler *MaintenanceModeHandler) Handle()
  • func (handler *MaintenanceModeHandler) HasThresholdReached() bool
  • func (handler *MaintenanceModeHandler) RecordAppStart(currTime int64)
• type NormalModeHandler
  • func (handler *NormalModeHandler) Handle()
  • func (handler *NormalModeHandler) HasThresholdReached() bool
  • func (handler *NormalModeHandler) RecordAppStart(currTime int64)
• type RecoveryDataT
• type RecoveryHandler
  • func NewRecoveryHandler(recoveryData *RecoveryDataT) RecoveryHandler

Variables

var CurrentMode string = normalMode // default mode

Functions

func CheckOccurences

func CheckOccurences(occurences []int64, numTimes int, numSecs int) (occurred bool)

CheckOccurences : check if this occurred numTimes times in numSecs seconds

func HandleRecovery

func HandleRecovery(forceNormal bool, forceDegraded bool, forceMaintenance bool, currTime int64)

HandleRecovery decides the recovery Mode in which app should run based on earlier crashes

func IsNormalMode

func IsNormalMode() bool

IsNormalMode checks if the current mode is normal

Types

type DegradedModeHandler

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

func (*DegradedModeHandler) Handle

func (handler *DegradedModeHandler) Handle()

func (*DegradedModeHandler) HasThresholdReached

func (handler *DegradedModeHandler) HasThresholdReached() bool

func (*DegradedModeHandler) RecordAppStart

func (handler *DegradedModeHandler) RecordAppStart(currTime int64)

type MaintenanceModeHandler

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

func (*MaintenanceModeHandler) Handle

func (handler *MaintenanceModeHandler) Handle()

func (*MaintenanceModeHandler) HasThresholdReached

func (handler *MaintenanceModeHandler) HasThresholdReached() bool

func (*MaintenanceModeHandler) RecordAppStart

func (handler *MaintenanceModeHandler) RecordAppStart(currTime int64)

type NormalModeHandler

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

func (*NormalModeHandler) Handle

func (handler *NormalModeHandler) Handle()

func (*NormalModeHandler) HasThresholdReached

func (handler *NormalModeHandler) HasThresholdReached() bool

func (*NormalModeHandler) RecordAppStart

func (handler *NormalModeHandler) RecordAppStart(currTime int64)

type RecoveryDataT

type RecoveryDataT struct {
	StartTimes                        []int64
	ReadableStartTimes                []string
	DegradedModeStartTimes            []int64
	ReadableDegradedModeStartTimes    []string
	MaintenanceModeStartTimes         []int64
	ReadableMaintenanceModeStartTimes []string
	Mode                              string
}

RecoveryDataT : DS to store the recovery process data

type RecoveryHandler

type RecoveryHandler interface {
	RecordAppStart(int64)
	HasThresholdReached() bool
	Handle()
}

func NewRecoveryHandler

func NewRecoveryHandler(recoveryData *RecoveryDataT) RecoveryHandler