holmes

Documentation

Index

• func OnHolmesPluginParsed(data json.RawMessage) error
• func Register(_ *v2.MOSNConfig)
• func SetOptions(opts []holmes.Option) error
• func Stop(_ stagemanager.Application)
• type GoroutineProfileOptions
• type ProfileOptions
• type ShrinkThreadOptions

Functions

func OnHolmesPluginParsed

func OnHolmesPluginParsed(data json.RawMessage) error

OnHolmesPluginParsed will be called when got the holmes extend config, and only start holmes when Enable = true in the config

func Register

func Register(_ *v2.MOSNConfig)

Init should register to stagemanager Init stage, since it must run before the preStart stage (HandleExtendConfig in it)

func SetOptions

func SetOptions(opts []holmes.Option) error

SetOptions change holmes options on fly

func Stop

func Stop(_ stagemanager.Application)

Stop should register to stagemanager afterStop stage

Types

type GoroutineProfileOptions

type GoroutineProfileOptions struct {
	*ProfileOptions
	GoroutineTriggerNumMax int // do not profile when goroutine number large than max (to avoid large STW)
}

type ProfileOptions

type ProfileOptions struct {
	Enable      bool
	TriggerMin  int                // not trigger profile when less than min, CPU,memory: percent
	TriggerAbs  int                // always trigger profile when larger than abs, CPU,memory: percent
	TriggerDiff int                // trigger profile when grow than diff, percent
	CoolDown    api.DurationConfig // skip for some time after finished a profile
}

type ShrinkThreadOptions

type ShrinkThreadOptions struct {
	Enable    bool
	Threshold int
	Delay     api.DurationConfig
}