nl

package
v1.3.18 Latest Latest
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 Go to latest Published: Jun 6, 2023 License: MIT Imports: 11 Imported by: 0

Documentation

Overview

Package notifications provides interfaces for AIStore notifications

  • Copyright (c) 2018-2021, NVIDIA CORPORATION. All rights reserved.

Package notifications provides interfaces for AIStore notifications

  • Copyright (c) 2018-2021, NVIDIA CORPORATION. All rights reserved.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func OnFinished 

func OnFinished(n cluster.Notif, err error)

func OnProgress 

func OnProgress(n cluster.Notif)

Types

type Base 

type Base struct {
	F func(n cluster.Notif, err error) // notification callback
	P func(n cluster.Notif)            // on progress notification callback

	Dsts []string // node IDs to notify

	When     cluster.Upon  // see the enum below
	Interval time.Duration // interval at which progress needs to be updated
	// contains filtered or unexported fields
}

func (*Base) LastNotifTime 

func (base *Base) LastNotifTime() int64

func (*Base) NotifyInterval 

func (base *Base) NotifyInterval() time.Duration

func (*Base) OnFinishedCB 

func (base *Base) OnFinishedCB() func(cluster.Notif, error)

func (*Base) OnProgressCB 

func (base *Base) OnProgressCB() func(cluster.Notif)

func (*Base) SetLastNotified 

func (base *Base) SetLastNotified(now int64)

func (*Base) Subscribers 

func (base *Base) Subscribers() []string

func (*Base) Upon 

func (base *Base) Upon(u cluster.Upon) bool

type Callback 

type Callback func(n Listener)

type Listener 

type Listener interface {
	Callback(nl Listener, ts int64)
	UnmarshalStats(rawMsg []byte) (any, bool, bool, error)
	Lock()
	Unlock()
	RLock()
	RUnlock()
	Notifiers() meta.NodeMap
	Kind() string
	Bcks() []*cmn.Bck
	SetErr(error)
	Err() error
	UUID() string
	SetAborted()
	Aborted() bool
	Status() *Status
	SetStats(daeID string, stats any)
	NodeStats() *NodeStats
	QueryArgs() cmn.HreqArgs
	EndTime() int64
	SetAddedTime()
	AddedTime() int64
	Finished() bool
	String() string
	GetOwner() string
	SetOwner(string)
	LastUpdated(si *meta.Snode) int64
	ProgressInterval() time.Duration

	// detailed ref-counting
	ActiveNotifiers() meta.NodeMap
	FinCount() int
	ActiveCount() int
	HasFinished(node *meta.Snode) bool
	MarkFinished(node *meta.Snode)
	NodesTardy(periodicNotifTime time.Duration) (nodes meta.NodeMap, tardy bool)
}

type ListenerBase 

type ListenerBase struct {
	Common struct {
		UUID        string
		Action      string // async operation kind (see cmn/api_const.go)
		Owned       string // "": not owned | equalIC: IC | otherwise, pid + IC
		SmapVersion int64  // smap version in which NL is added
		Bck         []*cmn.Bck
	}
	// construction
	Srcs       meta.NodeMap // all notifiers
	ActiveSrcs meta.NodeMap // running notifiers
	F          Callback     `json:"-"` // optional listening-side callback
	Stats      *NodeStats   // [daeID => Stats (e.g. cmn.SnapExt)]

	// runtime
	EndTimeX atomic.Int64 // timestamp when finished
	AbortedX atomic.Bool  // sets if the xaction is Aborted
	ErrValue cos.ErrValue // reported error and count
	// contains filtered or unexported fields
}

func NewNLB 

func NewNLB(uuid, action string, smap *meta.Smap, srcs meta.NodeMap, progress time.Duration, bck ...*cmn.Bck) *ListenerBase

func (*ListenerBase) Aborted 

func (nlb *ListenerBase) Aborted() bool

func (*ListenerBase) ActiveCount 

func (nlb *ListenerBase) ActiveCount() int

func (*ListenerBase) ActiveNotifiers 

func (nlb *ListenerBase) ActiveNotifiers() meta.NodeMap

func (*ListenerBase) AddedTime 

func (nlb *ListenerBase) AddedTime() int64

func (*ListenerBase) Bcks 

func (nlb *ListenerBase) Bcks() []*cmn.Bck

func (*ListenerBase) Callback 

func (nlb *ListenerBase) Callback(nl Listener, ts int64)

is called after all Notifiers will have notified OR on failure (err != nil)

func (*ListenerBase) EndTime 

func (nlb *ListenerBase) EndTime() int64

func (*ListenerBase) Err 

func (nlb *ListenerBase) Err() error

func (*ListenerBase) FinCount 

func (nlb *ListenerBase) FinCount() int

func (*ListenerBase) Finished 

func (nlb *ListenerBase) Finished() bool

func (*ListenerBase) GetOwner 

func (nlb *ListenerBase) GetOwner() string

func (*ListenerBase) HasFinished 

func (nlb *ListenerBase) HasFinished(node *meta.Snode) bool

func (*ListenerBase) Kind 

func (nlb *ListenerBase) Kind() string

func (*ListenerBase) LastUpdated 

func (nlb *ListenerBase) LastUpdated(si *meta.Snode) int64

func (*ListenerBase) Lock 

func (nlb *ListenerBase) Lock()

func (*ListenerBase) MarkFinished 

func (nlb *ListenerBase) MarkFinished(node *meta.Snode)

func (*ListenerBase) NodeStats 

func (nlb *ListenerBase) NodeStats() *NodeStats

func (*ListenerBase) NodesTardy 

func (nlb *ListenerBase) NodesTardy(periodicNotifTime time.Duration) (nodes meta.NodeMap, tardy bool)

under rlock

func (*ListenerBase) Notifiers 

func (nlb *ListenerBase) Notifiers() meta.NodeMap

func (*ListenerBase) ProgressInterval 

func (nlb *ListenerBase) ProgressInterval() time.Duration

func (*ListenerBase) RLock 

func (nlb *ListenerBase) RLock()

func (*ListenerBase) RUnlock 

func (nlb *ListenerBase) RUnlock()

func (*ListenerBase) SetAborted 

func (nlb *ListenerBase) SetAborted()

func (*ListenerBase) SetAddedTime 

func (nlb *ListenerBase) SetAddedTime()

func (*ListenerBase) SetErr 

func (nlb *ListenerBase) SetErr(err error)

func (*ListenerBase) SetOwner 

func (nlb *ListenerBase) SetOwner(o string)

func (*ListenerBase) SetStats 

func (nlb *ListenerBase) SetStats(daeID string, stats any)

func (*ListenerBase) Status 

func (nlb *ListenerBase) Status() *Status

func (*ListenerBase) String 

func (nlb *ListenerBase) String() string

func (*ListenerBase) UUID 

func (nlb *ListenerBase) UUID() string

func (*ListenerBase) Unlock 

func (nlb *ListenerBase) Unlock()

type NodeStats 

type NodeStats struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

func NewNodeStats 

func NewNodeStats(sizes ...int) *NodeStats

func (*NodeStats) Len 

func (ns *NodeStats) Len() (l int)

func (*NodeStats) Load 

func (ns *NodeStats) Load(key string) (val any, ok bool)

func (*NodeStats) MarshalJSON 

func (ns *NodeStats) MarshalJSON() (data []byte, err error)

func (*NodeStats) Range 

func (ns *NodeStats) Range(f func(string, any) bool)

func (*NodeStats) Store 

func (ns *NodeStats) Store(key string, stats any)

func (*NodeStats) UnmarshalJSON 

func (ns *NodeStats) UnmarshalJSON(data []byte) (err error)

type Status 

type Status struct {
	Kind     string `json:"kind"`     // xaction kind
	UUID     string `json:"uuid"`     // xaction UUID
	ErrMsg   string `json:"err"`      // error
	EndTimeX int64  `json:"end_time"` // time xaction ended
	AbortedX bool   `json:"aborted"`  // true if aborted
}

func (*Status) Aborted 

func (ns *Status) Aborted() bool

func (*Status) Finished 

func (ns *Status) Finished() bool

func (*Status) String 

func (ns *Status) String() (s string)

type StatusVec 

type StatusVec []Status

func (StatusVec) String 

func (nsv StatusVec) String() (s string)

Source Files

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