cmn

package
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 Go to latest Published: Nov 9, 2022 License: MIT Imports: 39 Imported by: 9

Documentation

Overview

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

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

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

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

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

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

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

msgp -file cmn/objlist.go -tests=false -marshal=false -unexported Code generated by the command above where msgp is tinylib/msgp; see docs/msgp.md. DO NOT EDIT.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

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

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.

Package cmn provides common constants, types, and utilities for AIS clients and AIStore.

  • Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.

Index

Constants

View Source 
const (
	IgnoreReaction = "ignore"
	WarnReaction   = "warn"
	AbortReaction  = "abort"
)

dsort

View Source 
const (
	MinSliceCount = 1  // minimum number of data or parity slices
	MaxSliceCount = 32 // maximum --/--
)
View Source 
const (
	KeepaliveHeartbeatType = "heartbeat"
	KeepaliveAverageType   = "average"
)
View Source 
const (
	FmtErrIntegrity      = "[%s%d, for troubleshooting see %s/blob/master/docs/troubleshooting.md]"
	FmtErrUnmarshal      = "%s: failed to unmarshal %s (%s), err: %w"
	FmtErrMorphUnmarshal = "%s: failed to unmarshal %s (%T), err: %w"
	FmtErrUnknown        = "%s: unknown %s %q"
	FmtErrBackwardCompat = "%v (backward compatibility is supported only one version back, e.g. 3.9 => 3.10)"

	EmptyProtoSchemeForURL = "empty protocol scheme for URL path"
)
View Source 
const (
	RetryLogVerbose = iota
	RetryLogQuiet
	RetryLogOff
)
View Source 
const (
	NetPublic       = "PUBLIC"
	NetIntraControl = "INTRA-CONTROL"
	NetIntraData    = "INTRA-DATA"
)
View Source 
const (
	DefaultMaxIdleConns        = 64
	DefaultMaxIdleConnsPerHost = 16
	DefaultIdleConnTimeout     = 8 * time.Second
	DefaultWriteBufferSize     = 64 * cos.KiB
	DefaultReadBufferSize      = 64 * cos.KiB
	DefaultSendRecvBufferSize  = 128 * cos.KiB
)
View Source 
const (
	// source of the cold-GET and download; the values include all
	// 3rd party backend providers (remote AIS not including)
	SourceObjMD = "source"

	// downloader' source is "web"
	WebObjMD = "web"

	VersionObjMD = "version" // "generation" for GCP, "version" for AWS but only if the bucket is versioned, etc.
	CRC32CObjMD  = cos.ChecksumCRC32C
	MD5ObjMD     = cos.ChecksumMD5
	ETag         = cos.HdrETag

	OrigURLObjMD = "orig_url"

	// additional backend
	LastModified    = "LastModified"
	ContentEncoding = "ContentEncoding"
)

LOM custom metadata stored under `lomCustomMD`.

View Source 
const (
	VersionAIStore = "3.12-rc1"
	VersionCLI     = "0.97"
	VersionLoader  = "1.6"
	VersionAuthN   = "1.0"
)
View Source 
const (
	MetaverSmap  = 1 // Smap (cluster map) formatting version (jsp)
	MetaverBMD   = 2 // BMD (bucket metadata) --/-- (jsp)
	MetaverRMD   = 1 // Rebalance MD (jsp)
	MetaverVMD   = 1 // Volume MD (jsp)
	MetaverEtlMD = 1 // ETL MD (jsp)

	MetaverLOM = 1 // LOM

	MetaverConfig      = 2 // Global Configuration (jsp)
	MetaverAuthNConfig = 1 // Authn config (jsp) // ditto
	MetaverAuthTokens  = 1 // Authn tokens (jsp) // ditto

	MetaverMetasync = 1 // metasync over network formatting version (jsp)

	MetaverJSP = jsp.Metaver // `jsp` own encoding version
)
View Source 
const AwsMultipartDelim = "-"
View Source 
const GitHubHome = "https://github.com/NVIDIA/aistore"
View Source 
const MsgpLsoBufSize = 32 * cos.KiB
View Source 
const (
	// NsGlobalUname is hardcoded here to avoid allocating it via Uname()
	// (the most common use case)
	NsGlobalUname = "@#"
)

Variables

View Source 
var (
	// NsGlobal represents *this* cluster's global namespace that is used by default when
	// no specific namespace was defined or provided by the user.
	NsGlobal = Ns{}
	// NsAnyRemote represents any remote cluster. As such, NsGlobalRemote applies
	// exclusively to AIS (provider) given that other Backend providers are remote by definition.
	NsAnyRemote = Ns{UUID: string(apc.NsUUIDPrefix)}
)
View Source 
var (
	ErrSkip             = errors.New("skip")
	ErrStartupTimeout   = errors.New("startup timeout")
	ErrQuiesceTimeout   = errors.New("timed out waiting for quiescence")
	ErrNotEnoughTargets = errors.New("not enough target nodes")
	ErrNoMountpaths     = errors.New("no mountpaths")
	// aborts
	ErrXactRenewAbort   = errors.New("renewal abort")
	ErrXactUserAbort    = errors.New("user abort")              // via apc.ActXactStop
	ErrXactICNotifAbort = errors.New("IC(notifications) abort") // ditto
	ErrXactNoErrAbort   = errors.New("no-error abort")
)
View Source 
var BackendHelpers = struct {
	Amazon backendFuncs
	Azure  backendFuncs
	Google backendFuncs
	HDFS   backendFuncs
	HTTP   backendFuncs
}{
	Amazon: backendFuncs{
		EncodeVersion: func(v any) (string, bool) {
			switch x := v.(type) {
			case *string:
				if awsIsVersionSet(x) {
					return *x, true
				}
				return "", false
			case string:
				if awsIsVersionSet(&x) {
					return x, true
				}
				return x, false
			default:
				debug.FailTypeCast(v)
				return "", false
			}
		},
		EncodeCksum: func(v any) (string, bool) {
			switch x := v.(type) {
			case *string:
				if strings.Contains(*x, AwsMultipartDelim) {
					return *x, true
				}
				cksum, _ := strconv.Unquote(*x)
				return cksum, true
			case string:
				return x, true
			default:
				debug.FailTypeCast(v)
				return "", false
			}
		},
	},
	Azure: backendFuncs{
		EncodeVersion: func(v any) (string, bool) {
			switch x := v.(type) {
			case string:
				x = strings.Trim(x, "\"")
				return x, x != ""
			default:
				debug.FailTypeCast(v)
				return "", false
			}
		},
		EncodeCksum: func(v any) (string, bool) {
			switch x := v.(type) {
			case string:
				decoded, err := base64.StdEncoding.DecodeString(x)
				if err != nil {
					return "", false
				}
				return hex.EncodeToString(decoded), true
			case []byte:
				return hex.EncodeToString(x), true
			default:
				debug.FailTypeCast(v)
				return "", false
			}
		},
	},
	Google: backendFuncs{
		EncodeVersion: func(v any) (string, bool) {
			switch x := v.(type) {
			case string:
				return x, x != ""
			case int64:
				return strconv.FormatInt(x, 10), true
			default:
				debug.FailTypeCast(v)
				return "", false
			}
		},
		EncodeCksum: func(v any) (string, bool) {
			switch x := v.(type) {
			case string:
				decoded, err := base64.StdEncoding.DecodeString(x)
				if err != nil {
					return "", false
				}
				return hex.EncodeToString(decoded), true
			case []byte:
				return hex.EncodeToString(x), true
			case uint32:

				b := []byte{byte(x >> 24), byte(x >> 16), byte(x >> 8), byte(x)}
				return base64.StdEncoding.EncodeToString(b), true
			default:
				debug.FailTypeCast(v)
				return "", false
			}
		},
	},
	HDFS: backendFuncs{
		EncodeCksum: func(v any) (cksumValue string, isSet bool) {
			switch x := v.(type) {
			case []byte:
				return hex.EncodeToString(x), true
			default:
				debug.FailTypeCast(v)
				return "", false
			}
		},
	},
	HTTP: backendFuncs{
		EncodeVersion: func(v any) (string, bool) {
			switch x := v.(type) {
			case string:

				x = strings.TrimPrefix(x, "W/")
				x = strings.Trim(x, "\"")
				return x, x != ""
			default:
				debug.FailTypeCast(v)
				return "", false
			}
		},
	},
}
View Source 
var ConfigRestartRequired = []string{"auth", "memsys", "net"}

assorted named fields that require (cluster | node) restart for changes to make an effect

View Source 
var Features feat.Flags

read-mostly feature flags (ditto)

View Source 
var GCO *globalConfigOwner

GCO (Global Config Owner) is responsible for updating and notifying listeners about any changes in the config. Global Config is loaded at startup and then can be accessed/updated by other services.

View Source 
var KnownNetworks = []string{NetPublic, NetIntraControl, NetIntraData}
View Source 
var SupportedReactions = []string{IgnoreReaction, WarnReaction, AbortReaction}
View Source 
var Timeout = &timeout{
	cplane:    time.Second + time.Millisecond,
	keepalive: 2*time.Second + time.Millisecond,
}

Functions

func AppGloghdr 

func AppGloghdr(hdr string)

func CustomMD2S 

func CustomMD2S(md cos.StrKVs) string

func DelBckFromQuery 

func DelBckFromQuery(query url.Values) url.Values

func DirNameContainsPrefix 

func DirNameContainsPrefix(dirPath, prefix string) bool

Every directory has to either: - be contained in prefix (for levels lower than prefix: prefix="abcd/def", directory="abcd") - include prefix (for levels deeper than prefix: prefix="a/", directory="a/b")

func FreeHra 

func FreeHra(a *HreqArgs)

func FreeHterr 

func FreeHterr(a *ErrHTTP)

func IsCloudProvider 

func IsCloudProvider(p string) bool

func IsErrAborted 

func IsErrAborted(err error) bool

func IsErrBckNotFound 

func IsErrBckNotFound(err error) bool

func IsErrBucketAlreadyExists 

func IsErrBucketAlreadyExists(err error) bool

func IsErrBucketLevel 

func IsErrBucketLevel(err error) bool

func IsErrBucketNought 

func IsErrBucketNought(err error) bool

nought: not a thing

func IsErrCapacityExceeded 

func IsErrCapacityExceeded(err error) bool

func IsErrLmetaCorrupted 

func IsErrLmetaCorrupted(err error) bool

func IsErrLmetaNotFound 

func IsErrLmetaNotFound(err error) bool

func IsErrMountpathNotFound 

func IsErrMountpathNotFound(err error) bool

func IsErrNotFound 

func IsErrNotFound(err error) bool

func IsErrObjLevel 

func IsErrObjLevel(err error) bool

func IsErrObjNought 

func IsErrObjNought(err error) bool

func IsErrRemoteBckNotFound 

func IsErrRemoteBckNotFound(err error) bool

func IsErrSoft 

func IsErrSoft(err error) bool

func IsErrUsePrevXaction 

func IsErrUsePrevXaction(err error) bool

func IsNestedMpath 

func IsNestedMpath(a string, la int, b string) (err error)

func IsNotExist 

func IsNotExist(err error) bool

usage: everywhere where applicable (directories, xactions, nodes, ...) excluding _local_ LOM (where the above applies)

func IsObjNotExist 

func IsObjNotExist(err error) bool

usage: lom.Load() (compare w/ IsNotExist)

func IsRemoteProvider 

func IsRemoteProvider(p string) bool

func IsStatusBadGateway 

func IsStatusBadGateway(err error) (yes bool)

func IsStatusGone 

func IsStatusGone(err error) (yes bool)

func IsStatusNotFound 

func IsStatusNotFound(err error) (yes bool)

func IsStatusServiceUnavailable 

func IsStatusServiceUnavailable(err error) (yes bool)

func IterFields 

func IterFields(v any, updf updateFunc, opts ...IterOpts) error

IterFields walks the struct and calls `updf` callback at every leaf field that it encounters. The (nested) names are created by joining the json tag with dot. Iteration supports reading another, custom tag `list` with values:

  • `tagOmitempty` - omit empty fields (only for read run)
  • `tagOmit` - omit field
  • `tagReadonly` - field cannot be updated (returns error on `SetValue`)

Examples of usages for tags can be found in `BucketProps` or `Config` structs.

Passing additional options with `IterOpts` can for example call callback also at the non-leaf structures.

func KeepaliveRetryDuration 

func KeepaliveRetryDuration(cs ...*Config) time.Duration

func LoadConfig 

func LoadConfig(globalConfPath, localConfPath, daeRole string, config *Config) error

is called at startup

func MatchItems 

func MatchItems(unescapedPath string, itemsAfter int, splitAfter bool, items []string) ([]string, error)

MatchItems splits URL path at "/" and matches resulting items against the specified, if any. - splitAfter == true: strings.Split() the entire path; - splitAfter == false: strings.SplitN(len(items)+itemsAfter) Returns all items that follow the specified `items`.

func NetworkCallWithRetry 

func NetworkCallWithRetry(args *RetryArgs) (err error)

func NetworkIsKnown 

func NetworkIsKnown(net string) bool

func NewClient 

func NewClient(args TransportArgs) *http.Client

func NewTransport 

func NewTransport(args TransportArgs) *http.Transport

func NormalizeProvider 

func NormalizeProvider(provider string) (p string, err error)

func ObjNameContainsPrefix 

func ObjNameContainsPrefix(objName, prefix string) bool

func OrigURLBck2Name 

func OrigURLBck2Name(origURLBck string) (bckName string)

func ParsePort 

func ParsePort(p string) (int, error)

func ParseURLScheme 

func ParseURLScheme(url string) (scheme, address string)

Splits url into [(scheme)://](address). It's not possible to use url.Parse as (from url.Parse() docs) 'Trying to parse a hostname and path without a scheme is invalid'

func PrependProtocol 

func PrependProtocol(url string, protocol ...string) string

PrependProtocol prepends protocol in URL in case it is missing. By default it adds `http://` as prefix to the URL.

func PromotedObjDstName 

func PromotedObjDstName(objfqn, dirfqn, givenObjName string) (objName string, err error)

promoted destination object's name

func PropToHeader 

func PropToHeader(prop string) string

PropToHeader converts a property full name to an HTTP header tag name

func RangeHdr 

func RangeHdr(start, length int64) (hdr http.Header)

func ReadBytes 

func ReadBytes(r *http.Request) (b []byte, err error)

func ReadJSON 

func ReadJSON(w http.ResponseWriter, r *http.Request, out any) (err error)

func SaveOverrideConfig 

func SaveOverrideConfig(configDir string, toUpdate *ConfigToUpdate) error

func SetLogLevel 

func SetLogLevel(loglevel string) (err error)

func SetNodeName 

func SetNodeName(sname string)

func SortLso 

func SortLso(bckEntries LsoEntries)

func ToHeader 

func ToHeader(oah ObjAttrsHolder, hdr http.Header)

func TokenGreaterEQ 

func TokenGreaterEQ(token, objName string) bool

Returns true if the continuation token >= object's name (in other words, the object is already listed and must be skipped). Note that string `>=` is lexicographic.

func UpdateFieldValue 

func UpdateFieldValue(s any, name string, value any) error

UpdateFieldValue updates the field in the struct with given value. Returns error if the field was not found or could not be updated.

func ValidateMpath 

func ValidateMpath(mpath string) (string, error)

common mountpath validation (NOTE: calls filepath.Clean() every time)

func ValidatePort 

func ValidatePort(port int) (int, error)

func ValidateRemAlias 

func ValidateRemAlias(alias string) (err error)

func WaitForFunc 

func WaitForFunc(f func() error, timeLong time.Duration) error

WaitForFunc executes a function in goroutine and waits for it to finish. If the function runs longer than `timeLong` WaitForFunc notifies a user that the user should wait for the result

func WriteErr 

func WriteErr(w http.ResponseWriter, r *http.Request, err error, opts ...int)

sends HTTP response header with the provided status (alloc/free via mem-pool)

func WriteErr405 

func WriteErr405(w http.ResponseWriter, r *http.Request, methods ...string)

405 Method Not Allowed, see: https://tools.ietf.org/html/rfc2616#section-10.4.6

func WriteErrJSON 

func WriteErrJSON(w http.ResponseWriter, r *http.Request, out any, err error) error

func WriteErrMsg 

func WriteErrMsg(w http.ResponseWriter, r *http.Request, msg string, opts ...int)

Create ErrHTTP (based on `msg` and `opts`) and write it into HTTP response.

Types

type AllBsummResults 

type AllBsummResults []*BsummResult

Bucket Summary

func (AllBsummResults) Aggregate 

func (s AllBsummResults) Aggregate(from *BsummResult) AllBsummResults

func (AllBsummResults) Finalize 

func (s AllBsummResults) Finalize(dsize map[string]uint64, testingEnv bool)

func (AllBsummResults) Len 

func (s AllBsummResults) Len() int

func (AllBsummResults) Less 

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

func (AllBsummResults) Swap 

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

type ArchiveMsg 

type ArchiveMsg struct {
	ToBck       Bck    `json:"tobck"`
	TxnUUID     string `json:"-"`
	FromBckName string `json:"-"`
	ArchName    string `json:"archname"` // must have one of the cos.ArchExtensions
	Mime        string `json:"mime"`     // user-specified mime type takes precedence if defined
	SelectObjsMsg
	InclSrcBname          bool `json:"isbn"` // include source bucket name into the names of archived objects
	AllowAppendToExisting bool `json:"aate"` // allow adding a list or a range of objects to an existing archive
	ContinueOnError       bool `json:"coer"` // on err, keep running arc xaction in a any given multi-object transaction
}

ArchiveMsg is used in CreateArchMultiObj operations; the message contains parameters for archiving mutiple (source) objects as one of the supported cos.ArchExtensions types at the specified (bucket) destination

func (*ArchiveMsg) FullName 

func (msg *ArchiveMsg) FullName() string

type AuthConf 

type AuthConf struct {
	Secret  string `json:"secret"`
	Enabled bool   `json:"enabled"`
}

type AuthConfToUpdate 

type AuthConfToUpdate struct {
	Secret  *string `json:"secret,omitempty"`
	Enabled *bool   `json:"enabled,omitempty"`
}

type BackendBckToUpdate 

type BackendBckToUpdate struct {
	Name     *string `json:"name"`
	Provider *string `json:"provider"`
}

Bucket properties - manageable, user-configurable, and inheritable (from cluster config)

type BackendConf 

type BackendConf struct {
	// provider implementation-dependent
	Conf map[string]any `json:"conf,omitempty"`
	// 3rd party Cloud(s) -- set during validation
	Providers map[string]Ns `json:"-"`
}

func (*BackendConf) EqualClouds 

func (c *BackendConf) EqualClouds(o *BackendConf) bool

func (*BackendConf) EqualRemAIS 

func (c *BackendConf) EqualRemAIS(o *BackendConf) bool

func (*BackendConf) MarshalJSON 

func (c *BackendConf) MarshalJSON() (data []byte, err error)

func (*BackendConf) ProviderConf 

func (c *BackendConf) ProviderConf(provider string, newConf ...any) (conf any, ok bool)

func (*BackendConf) UnmarshalJSON 

func (c *BackendConf) UnmarshalJSON(data []byte) error

func (*BackendConf) Validate 

func (c *BackendConf) Validate() (err error)

type BackendConfAIS 

type BackendConfAIS map[string][]string // cluster alias -> [urls...]

func (BackendConfAIS) String 

func (c BackendConfAIS) String() (s string)

type BackendConfHDFS 

type BackendConfHDFS struct {
	Addresses           []string `json:"addresses"`
	User                string   `json:"user"`
	UseDatanodeHostname bool     `json:"use_datanode_hostname"`
}

type Bck 

type Bck struct {
	Props    *BucketProps `json:"-"`
	Name     string       `json:"name" yaml:"name"`
	Provider string       `json:"provider" yaml:"provider"` // NOTE: see api/apc/provider.go for supported enum
	Ns       Ns           `json:"namespace" yaml:"namespace" list:"omitempty"`
}

func ParseBckObjectURI 

func ParseBckObjectURI(uri string, opts ParseURIOpts) (bck Bck, objName string, err error)

func ParseUname 

func ParseUname(uname string) (b Bck, objName string)

unique name => Bck (use MakeUname above to perform the reverse translation)

func (*Bck) AddToQuery 

func (b *Bck) AddToQuery(query url.Values) url.Values

func (*Bck) AddUnameToQuery 

func (b *Bck) AddUnameToQuery(query url.Values, uparam string) url.Values

func (*Bck) Backend 

func (b *Bck) Backend() *Bck

func (*Bck) Copy 

func (b *Bck) Copy(src *Bck)

func (*Bck) DefaultProps 

func (bck *Bck) DefaultProps(cs ...*Config) *BucketProps

By default, created buckets inherit their properties from the cluster (global) configuration. Global configuration, in turn, is protected versioned, checksummed, and replicated across the entire cluster.

* Bucket properties can be changed at any time via `api.SetBucketProps`. * In addition, `api.CreateBucket` allows to specify (non-default) properties at bucket creation time. * Inherited defaults include checksum, LRU, etc. configurations - see below. * By default, LRU is disabled for AIS (`ais://`) buckets.

See also:

  • github.com/NVIDIA/aistore/blob/master/docs/bucket.md#default-bucket-properties
  • BucketPropsToUpdate (above)
  • ais.defaultBckProps()

func (*Bck) DisplayName 

func (b *Bck) DisplayName() string

func (*Bck) DisplayProvider 

func (b *Bck) DisplayProvider() (p string)

func (Bck) Equal 

func (b Bck) Equal(other *Bck) bool

func (*Bck) HasProvider 

func (b *Bck) HasProvider() bool

func (*Bck) IsAIS 

func (b *Bck) IsAIS() bool

func (*Bck) IsCloud 

func (b *Bck) IsCloud() bool

func (*Bck) IsEmpty 

func (b *Bck) IsEmpty() bool

func (*Bck) IsHDFS 

func (b *Bck) IsHDFS() bool

func (*Bck) IsHTTP 

func (b *Bck) IsHTTP() bool

func (*Bck) IsQuery 

func (b *Bck) IsQuery() bool

QueryBcks (see below) is a Bck that _can_ have an empty Name.

func (*Bck) IsRemote 

func (b *Bck) IsRemote() bool

func (*Bck) IsRemoteAIS 

func (b *Bck) IsRemoteAIS() bool

func (*Bck) Less 

func (b *Bck) Less(other *Bck) bool

func (*Bck) MakeUname 

func (b *Bck) MakeUname(objName string) string

Bck => unique name (use ParseUname below to translate back)

func (*Bck) RemoteBck 

func (b *Bck) RemoteBck() *Bck

func (Bck) String 

func (b Bck) String() string

func (*Bck) Validate 

func (b *Bck) Validate() (err error)

func (*Bck) ValidateName 

func (b *Bck) ValidateName() (err error)

type Bcks 

type Bcks []Bck

func (Bcks) Equal 

func (bcks Bcks) Equal(other Bcks) bool

func (Bcks) Len 

func (bcks Bcks) Len() int

func (Bcks) Less 

func (bcks Bcks) Less(i, j int) bool

func (Bcks) Select 

func (bcks Bcks) Select(query QueryBcks) (filtered Bcks)

func (Bcks) Swap 

func (bcks Bcks) Swap(i, j int)

type BsummCtrlMsg 

type BsummCtrlMsg struct {
	UUID       string `json:"uuid"`
	Fast       bool   `json:"fast"`
	ObjCached  bool   `json:"cached"`
	BckPresent bool   `json:"present"`
}

control message to generate bucket summary or summaries (above)

type BsummResult 

type BsummResult struct {
	Bck
	ObjCount struct {
		Present uint64 `json:"obj_count_present,string"`
		Remote  uint64 `json:"obj_count_remote,string"`
	}
	ObjSize struct {
		Min int64 `json:"obj_min_size"`
		Avg int64 `json:"obj_avg_size"`
		Max int64 `json:"obj_max_size"`
	}
	TotalSize struct {
		OnDisk      uint64 `json:"size_on_disk,string"`          // sum(dir sizes) aka "apparent size"
		PresentObjs uint64 `json:"size_all_present_objs,string"` // sum(cached object sizes)
		RemoteObjs  uint64 `json:"size_all_remote_objs,string"`  // sum(all object sizes in a remote bucket)
		Disks       uint64 `json:"total_disks_size,string"`
	}
	UsedPct      uint64 `json:"used_pct"`
	IsBckPresent bool   `json:"is_present"` // in BMD
}

"summarized" result for a given bucket

func NewBsummResult 

func NewBsummResult(bck *Bck, totalDisksSize uint64) (bs *BsummResult)

type BucketProps 

type BucketProps struct {
	BackendBck  Bck             `json:"backend_bck,omitempty"` // makes remote bucket out of a given ais bucket
	Extra       ExtraProps      `json:"extra,omitempty" list:"omitempty"`
	WritePolicy WritePolicyConf `json:"write_policy"`
	Provider    string          `json:"provider" list:"readonly"`       // backend provider
	Renamed     string          `list:"omit"`                           // non-empty if the bucket has been renamed
	Cksum       CksumConf       `json:"checksum"`                       // the bucket's checksum
	EC          ECConf          `json:"ec"`                             // erasure coding
	LRU         LRUConf         `json:"lru"`                            // LRU (watermarks and enabled/disabled)
	Mirror      MirrorConf      `json:"mirror"`                         // mirroring
	Access      apc.AccessAttrs `json:"access,string"`                  // access permissions
	BID         uint64          `json:"bid,string" list:"omit"`         // unique ID
	Created     int64           `json:"created,string" list:"readonly"` // creation timestamp
	Versioning  VersionConf     `json:"versioning"`                     // versioning (see "inherit" here and elsewhere)
}

BucketProps includes per-bucket user-configurable checksum, version, LRU, erasure-coding, and more.

At creation time, unless specified via api.CreateBucket, new bucket by default inherits its properties from the global configuration. * see api.CreateBucket for details * for all inheritable props, see DefaultProps below

Naming convention for setting/getting the particular props is defined as joining the json tags with dot. Eg. when referring to `EC.Enabled` field one would need to write `ec.enabled`. For more info refer to `IterFields`.

func (*BucketProps) Apply 

func (bp *BucketProps) Apply(propsToUpdate *BucketPropsToUpdate)

func (*BucketProps) Clone 

func (bp *BucketProps) Clone() *BucketProps

func (*BucketProps) Equal 

func (bp *BucketProps) Equal(other *BucketProps) (eq bool)

func (*BucketProps) SetProvider 

func (bp *BucketProps) SetProvider(provider string)

func (*BucketProps) Validate 

func (bp *BucketProps) Validate(targetCnt int) error

type BucketPropsToUpdate 

type BucketPropsToUpdate struct {
	BackendBck  *BackendBckToUpdate      `json:"backend_bck,omitempty"`
	Versioning  *VersionConfToUpdate     `json:"versioning,omitempty"`
	Cksum       *CksumConfToUpdate       `json:"checksum,omitempty"`
	LRU         *LRUConfToUpdate         `json:"lru,omitempty"`
	Mirror      *MirrorConfToUpdate      `json:"mirror,omitempty"`
	EC          *ECConfToUpdate          `json:"ec,omitempty"`
	Access      *apc.AccessAttrs         `json:"access,string,omitempty"`
	WritePolicy *WritePolicyConfToUpdate `json:"write_policy,omitempty"`
	Extra       *ExtraToUpdate           `json:"extra,omitempty"`
	Force       bool                     `json:"force,omitempty" copy:"skip" list:"omit"`
}

Once validated, BucketPropsToUpdate are copied to BucketProps. The struct may have extra fields that do not exist in BucketProps. Add tag 'copy:"skip"' to ignore those fields when copying values.

func NewBucketPropsToUpdate 

func NewBucketPropsToUpdate(nvs cos.StrKVs) (props *BucketPropsToUpdate, err error)

type CksumConf 

type CksumConf struct {
	// (note that `ChecksumNone` ("none") disables checksumming)
	Type string `json:"type"`

	// validate the checksum of the object that we cold-GET
	// or download from remote location (e.g., cloud bucket)
	ValidateColdGet bool `json:"validate_cold_get"`

	// validate object's version (if exists and provided) and its checksum -
	// if either value fail to match, the object is removed from ais.
	//
	// NOTE: object versioning is backend-specific and is may _not_ be supported by a given
	// (supported) backends - see docs for details.
	ValidateWarmGet bool `json:"validate_warm_get"`

	// determines whether to validate checksums of objects
	// migrated or replicated within the cluster
	ValidateObjMove bool `json:"validate_obj_move"`

	// EnableReadRange: Return read range checksum otherwise return entire object checksum.
	EnableReadRange bool `json:"enable_read_range"`
}

func (*CksumConf) String 

func (c *CksumConf) String() string

func (*CksumConf) Validate 

func (c *CksumConf) Validate() (err error)

func (*CksumConf) ValidateAsProps 

func (c *CksumConf) ValidateAsProps(...any) (err error)

type CksumConfToUpdate 

type CksumConfToUpdate struct {
	Type            *string `json:"type,omitempty"`
	ValidateColdGet *bool   `json:"validate_cold_get,omitempty"`
	ValidateWarmGet *bool   `json:"validate_warm_get,omitempty"`
	ValidateObjMove *bool   `json:"validate_obj_move,omitempty"`
	EnableReadRange *bool   `json:"enable_read_range,omitempty"`
}

type ClientConf 

type ClientConf struct {
	Timeout        cos.Duration `json:"client_timeout"`
	TimeoutLong    cos.Duration `json:"client_long_timeout"`
	ListObjTimeout cos.Duration `json:"list_timeout"`
}

func (*ClientConf) Validate 

func (c *ClientConf) Validate() error

type ClientConfToUpdate 

type ClientConfToUpdate struct {
	Timeout        *cos.Duration `json:"client_timeout,omitempty"` // readonly as far as intra-cluster
	TimeoutLong    *cos.Duration `json:"client_long_timeout,omitempty"`
	ListObjTimeout *cos.Duration `json:"list_timeout,omitempty"`
}

type ClusterConfig 

type ClusterConfig struct {
	Ext         any             `json:"ext,omitempty"` // within meta-version extensions
	Backend     BackendConf     `json:"backend" allow:"cluster"`
	Mirror      MirrorConf      `json:"mirror" allow:"cluster"`
	EC          ECConf          `json:"ec" allow:"cluster"`
	Log         LogConf         `json:"log"`
	Periodic    PeriodConf      `json:"periodic"`
	Timeout     TimeoutConf     `json:"timeout"`
	Client      ClientConf      `json:"client"`
	Proxy       ProxyConf       `json:"proxy" allow:"cluster"`
	Space       SpaceConf       `json:"space"`
	LRU         LRUConf         `json:"lru"`
	Disk        DiskConf        `json:"disk"`
	Rebalance   RebalanceConf   `json:"rebalance" allow:"cluster"`
	Resilver    ResilverConf    `json:"resilver"`
	Cksum       CksumConf       `json:"checksum"`
	Versioning  VersionConf     `json:"versioning" allow:"cluster"`
	Net         NetConf         `json:"net"`
	FSHC        FSHCConf        `json:"fshc"`
	Auth        AuthConf        `json:"auth"`
	Keepalive   KeepaliveConf   `json:"keepalivetracker"`
	Downloader  DownloaderConf  `json:"downloader"`
	DSort       DSortConf       `json:"distributed_sort"`
	Transport   TransportConf   `json:"transport"`
	Memsys      MemsysConf      `json:"memsys"`
	TCB         TCBConf         `json:"tcb"`                             // transform/copy bucket
	WritePolicy WritePolicyConf `json:"write_policy"`                    // write {immediate, delayed, never}
	Features    feat.Flags      `json:"features,string" allow:"cluster"` // (to flip assorted defaults) (NOTE: cmn. FeaturesPropName)
	// read-only
	LastUpdated string `json:"lastupdate_time"`       // timestamp
	UUID        string `json:"uuid"`                  // UUID
	Version     int64  `json:"config_version,string"` // version
}

global configuration

func (*ClusterConfig) Apply 

func (c *ClusterConfig) Apply(updateConf ConfigToUpdate, asType string) error

func (*ClusterConfig) JspOpts 

func (*ClusterConfig) JspOpts() jsp.Options

func (*ClusterConfig) String 

func (c *ClusterConfig) String() string

type Config 

type Config struct {
	ClusterConfig `json:",inline"`
	LocalConfig   `json:",inline"`
	// contains filtered or unexported fields
}

Config contains all configuration values used by a given ais daemon. Naming convention for setting/getting specific values is defined as follows: 

(parent json tag . child json tag)

E.g., to set/get `EC.Enabled` use `ec.enabled`. And so on. For details, see `IterFields`.

func (*Config) SetRole 

func (c *Config) SetRole(role string)

func (*Config) TestingEnv 

func (c *Config) TestingEnv() bool

TestingEnv returns true if config is set to a development environment where a single local filesystem is partitioned between all (locally running) targets and is used for both local and Cloud buckets

func (*Config) UpdateClusterConfig 

func (c *Config) UpdateClusterConfig(updateConf ConfigToUpdate, asType string) (err error)

func (*Config) Validate 

func (c *Config) Validate() error

main config validator

type ConfigToUpdate 

type ConfigToUpdate struct {
	// ClusterConfig
	Backend     *BackendConf             `json:"backend,omitempty"`
	Mirror      *MirrorConfToUpdate      `json:"mirror,omitempty"`
	EC          *ECConfToUpdate          `json:"ec,omitempty"`
	Log         *LogConfToUpdate         `json:"log,omitempty"`
	Periodic    *PeriodConfToUpdate      `json:"periodic,omitempty"`
	Timeout     *TimeoutConfToUpdate     `json:"timeout,omitempty"`
	Client      *ClientConfToUpdate      `json:"client,omitempty"`
	Space       *SpaceConfToUpdate       `json:"space,omitempty"`
	LRU         *LRUConfToUpdate         `json:"lru,omitempty"`
	Disk        *DiskConfToUpdate        `json:"disk,omitempty"`
	Rebalance   *RebalanceConfToUpdate   `json:"rebalance,omitempty"`
	Resilver    *ResilverConfToUpdate    `json:"resilver,omitempty"`
	Cksum       *CksumConfToUpdate       `json:"checksum,omitempty"`
	Versioning  *VersionConfToUpdate     `json:"versioning,omitempty"`
	Net         *NetConfToUpdate         `json:"net,omitempty"`
	FSHC        *FSHCConfToUpdate        `json:"fshc,omitempty"`
	Auth        *AuthConfToUpdate        `json:"auth,omitempty"`
	Keepalive   *KeepaliveConfToUpdate   `json:"keepalivetracker,omitempty"`
	Downloader  *DownloaderConfToUpdate  `json:"downloader,omitempty"`
	DSort       *DSortConfToUpdate       `json:"distributed_sort,omitempty"`
	Transport   *TransportConfToUpdate   `json:"transport,omitempty"`
	Memsys      *MemsysConfToUpdate      `json:"memsys,omitempty"`
	TCB         *TCBConfToUpdate         `json:"tcb,omitempty"`
	WritePolicy *WritePolicyConfToUpdate `json:"write_policy,omitempty"`
	Proxy       *ProxyConfToUpdate       `json:"proxy,omitempty"`
	Features    *feat.Flags              `json:"features,string,omitempty"`

	// LocalConfig
	FSP *FSPConf `json:"fspaths,omitempty"`
}

func (*ConfigToUpdate) FillFromKVS 

func (ctu *ConfigToUpdate) FillFromKVS(kvs []string) (err error)

FillFromKVS populates `ConfigToUpdate` from key value pairs of the form `key=value`

func (*ConfigToUpdate) FillFromQuery 

func (ctu *ConfigToUpdate) FillFromQuery(query url.Values) error

FillFromQuery populates ConfigToUpdate from URL query values

func (*ConfigToUpdate) JspOpts 

func (*ConfigToUpdate) JspOpts() jsp.Options

func (*ConfigToUpdate) Merge 

func (ctu *ConfigToUpdate) Merge(update *ConfigToUpdate)

type DSortConf 

type DSortConf struct {
	DuplicatedRecords   string       `json:"duplicated_records"`
	MissingShards       string       `json:"missing_shards"`
	EKMMalformedLine    string       `json:"ekm_malformed_line"`
	EKMMissingKey       string       `json:"ekm_missing_key"`
	DefaultMaxMemUsage  string       `json:"default_max_mem_usage"`
	CallTimeout         cos.Duration `json:"call_timeout"`
	DSorterMemThreshold string       `json:"dsorter_mem_threshold"`
	Compression         string       `json:"compression"`       // {CompressAlways,...} in api/apc/compression.go
	SbundleMult         int          `json:"bundle_multiplier"` // stream-bundle multiplier: num to destination
}

func (*DSortConf) Validate 

func (c *DSortConf) Validate() (err error)

func (*DSortConf) ValidateWithOpts 

func (c *DSortConf) ValidateWithOpts(allowEmpty bool) (err error)

type DSortConfToUpdate 

type DSortConfToUpdate struct {
	DuplicatedRecords   *string       `json:"duplicated_records,omitempty"`
	MissingShards       *string       `json:"missing_shards,omitempty"`
	EKMMalformedLine    *string       `json:"ekm_malformed_line,omitempty"`
	EKMMissingKey       *string       `json:"ekm_missing_key,omitempty"`
	DefaultMaxMemUsage  *string       `json:"default_max_mem_usage,omitempty"`
	CallTimeout         *cos.Duration `json:"call_timeout,omitempty"`
	DSorterMemThreshold *string       `json:"dsorter_mem_threshold,omitempty"`
	Compression         *string       `json:"compression,omitempty"`
	SbundleMult         *int          `json:"bundle_multiplier,omitempty"`
}

type DiskConf 

type DiskConf struct {
	DiskUtilLowWM   int64        `json:"disk_util_low_wm"`  // no throttling below
	DiskUtilHighWM  int64        `json:"disk_util_high_wm"` // throttle longer when above
	DiskUtilMaxWM   int64        `json:"disk_util_max_wm"`
	IostatTimeLong  cos.Duration `json:"iostat_time_long"`
	IostatTimeShort cos.Duration `json:"iostat_time_short"`
}

func (*DiskConf) Validate 

func (c *DiskConf) Validate() (err error)

type DiskConfToUpdate 

type DiskConfToUpdate struct {
	DiskUtilLowWM   *int64        `json:"disk_util_low_wm,omitempty"`
	DiskUtilHighWM  *int64        `json:"disk_util_high_wm,omitempty"`
	DiskUtilMaxWM   *int64        `json:"disk_util_max_wm,omitempty"`
	IostatTimeLong  *cos.Duration `json:"iostat_time_long,omitempty"`
	IostatTimeShort *cos.Duration `json:"iostat_time_short,omitempty"`
}

type DownloaderConf 

type DownloaderConf struct {
	Timeout cos.Duration `json:"timeout"`
}

func (*DownloaderConf) Validate 

func (c *DownloaderConf) Validate() error

type DownloaderConfToUpdate 

type DownloaderConfToUpdate struct {
	Timeout *cos.Duration `json:"timeout,omitempty"`
}

type ECConf 

type ECConf struct {
	ObjSizeLimit int64  `json:"objsize_limit"`     // objects below this size are replicated instead of EC'ed
	Compression  string `json:"compression"`       // enum { CompressAlways, ... } in api/apc/compression.go
	SbundleMult  int    `json:"bundle_multiplier"` // stream-bundle multiplier: num streams to destination
	DataSlices   int    `json:"data_slices"`       // number of data slices
	ParitySlices int    `json:"parity_slices"`     // number of parity slices/replicas
	Enabled      bool   `json:"enabled"`           // EC is enabled
	DiskOnly     bool   `json:"disk_only"`         // if true, EC does not use SGL - data goes directly to drives
}

func (*ECConf) RequiredEncodeTargets 

func (c *ECConf) RequiredEncodeTargets() int

func (*ECConf) RequiredRestoreTargets 

func (c *ECConf) RequiredRestoreTargets() int

func (*ECConf) String 

func (c *ECConf) String() string

func (*ECConf) Validate 

func (c *ECConf) Validate() error

func (*ECConf) ValidateAsProps 

func (c *ECConf) ValidateAsProps(arg ...any) (err error)

type ECConfToUpdate 

type ECConfToUpdate struct {
	ObjSizeLimit *int64  `json:"objsize_limit,omitempty"`
	Compression  *string `json:"compression,omitempty"`
	SbundleMult  *int    `json:"bundle_multiplier,omitempty"`
	DataSlices   *int    `json:"data_slices,omitempty"`
	ParitySlices *int    `json:"parity_slices,omitempty"`
	Enabled      *bool   `json:"enabled,omitempty"`
	DiskOnly     *bool   `json:"disk_only,omitempty"`
}

type ETLErrorContext 

type ETLErrorContext struct {
	TID     string
	UUID    string
	ETLName string
	PodName string
	SvcName string
}

type ErrAborted 

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

func AsErrAborted 

func AsErrAborted(err error) (errAborted *ErrAborted)

func NewErrAborted 

func NewErrAborted(what, ctx string, err error) *ErrAborted

func (*ErrAborted) Error 

func (e *ErrAborted) Error() (s string)

func (*ErrAborted) Unwrap 

func (e *ErrAborted) Unwrap() (err error)

type ErrBckNotFound 

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

func NewErrBckNotFound 

func NewErrBckNotFound(bck *Bck) *ErrBckNotFound

func (*ErrBckNotFound) Error 

func (e *ErrBckNotFound) Error() string

type ErrBucketAccessDenied 

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

func NewBucketAccessDenied 

func NewBucketAccessDenied(bucket, oper string, aattrs apc.AccessAttrs) *ErrBucketAccessDenied

func (*ErrBucketAccessDenied) Error 

func (e *ErrBucketAccessDenied) Error() string

func (*ErrBucketAccessDenied) String 

func (e *ErrBucketAccessDenied) String() string

type ErrBucketAlreadyExists 

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

func NewErrBckAlreadyExists 

func NewErrBckAlreadyExists(bck *Bck) *ErrBucketAlreadyExists

func (*ErrBucketAlreadyExists) Error 

func (e *ErrBucketAlreadyExists) Error() string

type ErrBucketIsBusy 

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

func NewErrBckIsBusy 

func NewErrBckIsBusy(bck *Bck) *ErrBucketIsBusy

func (*ErrBucketIsBusy) Error 

func (e *ErrBucketIsBusy) Error() string

type ErrCapacityExceeded 

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

func NewErrCapacityExceeded 

func NewErrCapacityExceeded(highWM int64, totalBytesUsed, totalBytes uint64, usedPct int32, oos bool) *ErrCapacityExceeded

func (*ErrCapacityExceeded) Error 

func (e *ErrCapacityExceeded) Error() string

type ErrETL 

type ErrETL struct {
	Reason string
	ETLErrorContext
}

func NewErrETL 

func NewErrETL(ctx *ETLErrorContext, format string, a ...any) *ErrETL

func (*ErrETL) Error 

func (e *ErrETL) Error() string

func (*ErrETL) WithContext 

func (e *ErrETL) WithContext(ctx *ETLErrorContext) *ErrETL

func (*ErrETL) WithPodName 

func (e *ErrETL) WithPodName(name string) *ErrETL

type ErrFailedTo 

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

func NewErrFailedTo 

func NewErrFailedTo(actor any, action string, what any, err error, errCode ...int) *ErrFailedTo

func (*ErrFailedTo) Error 

func (e *ErrFailedTo) Error() string

func (*ErrFailedTo) Unwrap 

func (e *ErrFailedTo) Unwrap() (err error)

type ErrHTTP 

type ErrHTTP struct {
	TypeCode   string `json:"tcode,omitempty"`
	Message    string `json:"message"`
	Method     string `json:"method"`
	URLPath    string `json:"url_path"`
	RemoteAddr string `json:"remote_addr"`
	Caller     string `json:"caller"`
	Node       string `json:"node"`

	Status int `json:"status"`
	// contains filtered or unexported fields
}

Error structure for HTTP errors

func Err2HTTPErr 

func Err2HTTPErr(err error) *ErrHTTP

func InitErrHTTP 

func InitErrHTTP(r *http.Request, err error, errCode int) (e *ErrHTTP)

uses `allocHterr` to allocate - caller must free via `FreeHterr`

func NewErrHTTP 

func NewErrHTTP(r *http.Request, err error, errCode int) (e *ErrHTTP)

func S2HTTPErr 

func S2HTTPErr(r *http.Request, msg string, status int) *ErrHTTP

func (*ErrHTTP) Error 

func (e *ErrHTTP) Error() (s string)

type ErrInitBackend 

type ErrInitBackend struct {
	Provider string
}

func (*ErrInitBackend) Error 

func (e *ErrInitBackend) Error() string

type ErrInvalidBackendProvider 

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

func (*ErrInvalidBackendProvider) Error 

func (e *ErrInvalidBackendProvider) Error() string

func (*ErrInvalidBackendProvider) Is 

func (*ErrInvalidBackendProvider) Is(target error) bool

type ErrInvalidCksum 

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

func NewErrInvalidCksum 

func NewErrInvalidCksum(eHash, aHash string) *ErrInvalidCksum

func (*ErrInvalidCksum) Error 

func (e *ErrInvalidCksum) Error() string

func (*ErrInvalidCksum) Expected 

func (e *ErrInvalidCksum) Expected() string

type ErrInvalidFSPathsConf 

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

func NewErrInvalidFSPathsConf 

func NewErrInvalidFSPathsConf(err error) *ErrInvalidFSPathsConf

func (*ErrInvalidFSPathsConf) Error 

func (e *ErrInvalidFSPathsConf) Error() string

func (*ErrInvalidFSPathsConf) Unwrap 

func (e *ErrInvalidFSPathsConf) Unwrap() (err error)

type ErrInvalidMountpath 

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

func NewErrInvalidaMountpath 

func NewErrInvalidaMountpath(mpath, cause string) *ErrInvalidMountpath

func (*ErrInvalidMountpath) Error 

func (e *ErrInvalidMountpath) Error() string

type ErrLimitedCoexistence 

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

func NewErrLimitedCoexistence 

func NewErrLimitedCoexistence(node, xaction, action, detail string) *ErrLimitedCoexistence

func (*ErrLimitedCoexistence) Error 

func (e *ErrLimitedCoexistence) Error() string

type ErrLmetaCorrupted 

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

func NewErrLmetaCorrupted 

func NewErrLmetaCorrupted(err error) *ErrLmetaCorrupted

func (*ErrLmetaCorrupted) Error 

func (e *ErrLmetaCorrupted) Error() string

func (*ErrLmetaCorrupted) Unwrap 

func (e *ErrLmetaCorrupted) Unwrap() (err error)

type ErrLmetaNotFound 

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

func NewErrLmetaNotFound 

func NewErrLmetaNotFound(err error) *ErrLmetaNotFound

func (*ErrLmetaNotFound) Error 

func (e *ErrLmetaNotFound) Error() string

func (*ErrLmetaNotFound) Unwrap 

func (e *ErrLmetaNotFound) Unwrap() (err error)

type ErrMissingBackend 

type ErrMissingBackend struct {
	Provider string
	Msg      string
}

func (*ErrMissingBackend) Error 

func (e *ErrMissingBackend) Error() string

type ErrMountpathNotFound 

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

func NewErrMountpathNotFound 

func NewErrMountpathNotFound(mpath, fqn string, disabled bool) *ErrMountpathNotFound

func (*ErrMountpathNotFound) Error 

func (e *ErrMountpathNotFound) Error() string

type ErrNoNodes 

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

func NewErrNoNodes 

func NewErrNoNodes(role string) *ErrNoNodes

func (*ErrNoNodes) Error 

func (e *ErrNoNodes) Error() string

type ErrNotFound 

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

func NewErrNotFound 

func NewErrNotFound(format string, a ...any) *ErrNotFound

func (*ErrNotFound) Error 

func (e *ErrNotFound) Error() string

type ErrNotImpl 

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

func NewErrNotImpl 

func NewErrNotImpl(action, what string) *ErrNotImpl

func (*ErrNotImpl) Error 

func (e *ErrNotImpl) Error() string

type ErrObjDefunct 

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

func NewErrObjDefunct 

func NewErrObjDefunct(name string, d1, d2 uint64) *ErrObjDefunct

func (*ErrObjDefunct) Error 

func (e *ErrObjDefunct) Error() string

type ErrObjectAccessDenied 

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

func NewObjectAccessDenied 

func NewObjectAccessDenied(object, oper string, aattrs apc.AccessAttrs) *ErrObjectAccessDenied

func (*ErrObjectAccessDenied) Error 

func (e *ErrObjectAccessDenied) Error() string

func (*ErrObjectAccessDenied) String 

func (e *ErrObjectAccessDenied) String() string

type ErrRangeNoOverlap 

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

func (*ErrRangeNoOverlap) Error 

func (e *ErrRangeNoOverlap) Error() string

ErrNoOverlap is returned by serveContent's parseRange if first-byte-pos of all of the byte-range-spec values is greater than the content size.

type ErrRemoteBckNotFound 

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

func NewErrRemoteBckNotFound 

func NewErrRemoteBckNotFound(bck *Bck) *ErrRemoteBckNotFound

func (*ErrRemoteBckNotFound) Error 

func (e *ErrRemoteBckNotFound) Error() string

type ErrRemoteBucketOffline 

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

func NewErrRemoteBckOffline 

func NewErrRemoteBckOffline(bck *Bck) *ErrRemoteBucketOffline

func (*ErrRemoteBucketOffline) Error 

func (e *ErrRemoteBucketOffline) Error() string

type ErrSoft 

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

func NewErrSoft 

func NewErrSoft(what string) *ErrSoft

func (*ErrSoft) Error 

func (e *ErrSoft) Error() string

type ErrUnsupp 

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

func NewErrUnsupp 

func NewErrUnsupp(action, what string) *ErrUnsupp

func (*ErrUnsupp) Error 

func (e *ErrUnsupp) Error() string

type ErrUsePrevXaction 

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

func NewErrUsePrevXaction 

func NewErrUsePrevXaction(xaction string) *ErrUsePrevXaction

func (*ErrUsePrevXaction) Error 

func (e *ErrUsePrevXaction) Error() string

type ErrXactionNotFound 

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

func NewErrXactNotFoundError 

func NewErrXactNotFoundError(cause string) *ErrXactionNotFound

func (*ErrXactionNotFound) Error 

func (e *ErrXactionNotFound) Error() string

type ExtraProps 

type ExtraProps struct {
	AWS  ExtraPropsAWS  `json:"aws,omitempty" list:"omitempty"`
	HTTP ExtraPropsHTTP `json:"http,omitempty" list:"omitempty"`
	HDFS ExtraPropsHDFS `json:"hdfs,omitempty" list:"omitempty"`
}

Bucket properties - manageable, user-configurable, and inheritable (from cluster config)

func (*ExtraProps) ValidateAsProps 

func (c *ExtraProps) ValidateAsProps(arg ...any) error

type ExtraPropsAWS 

type ExtraPropsAWS struct {
	CloudRegion string `json:"cloud_region,omitempty" list:"readonly"`

	// from https://github.com/aws/aws-sdk-go/blob/main/aws/config.go:
	//   "An optional endpoint URL (hostname only or fully qualified URI)
	//    that overrides the default generated endpoint."
	Endpoint string `json:"endpoint,omitempty"`
}

Bucket properties - manageable, user-configurable, and inheritable (from cluster config)

type ExtraPropsAWSToUpdate 

type ExtraPropsAWSToUpdate struct {
	CloudRegion *string `json:"cloud_region"`
	Endpoint    *string `json:"endpoint"`
}

Bucket properties - manageable, user-configurable, and inheritable (from cluster config)

type ExtraPropsHDFS 

type ExtraPropsHDFS struct {
	// Reference directory.
	RefDirectory string `json:"ref_directory,omitempty"`
}

Bucket properties - manageable, user-configurable, and inheritable (from cluster config)

type ExtraPropsHDFSToUpdate 

type ExtraPropsHDFSToUpdate struct {
	RefDirectory *string `json:"ref_directory"`
}

Bucket properties - manageable, user-configurable, and inheritable (from cluster config)

type ExtraPropsHTTP 

type ExtraPropsHTTP struct {
	// Original URL prior to hashing.
	OrigURLBck string `json:"original_url,omitempty" list:"readonly"`
}

Bucket properties - manageable, user-configurable, and inheritable (from cluster config)

type ExtraPropsHTTPToUpdate 

type ExtraPropsHTTPToUpdate struct {
	OrigURLBck *string `json:"original_url"`
}

Bucket properties - manageable, user-configurable, and inheritable (from cluster config)

type ExtraToUpdate 

type ExtraToUpdate struct {
	AWS  *ExtraPropsAWSToUpdate  `json:"aws"`
	HTTP *ExtraPropsHTTPToUpdate `json:"http"`
	HDFS *ExtraPropsHDFSToUpdate `json:"hdfs"`
}

Bucket properties - manageable, user-configurable, and inheritable (from cluster config)

type FSHCConf 

type FSHCConf struct {
	TestFileCount int  `json:"test_files"`  // number of files to read/write
	ErrorLimit    int  `json:"error_limit"` // exceeding err limit causes disabling mountpath
	Enabled       bool `json:"enabled"`
}

type FSHCConfToUpdate 

type FSHCConfToUpdate struct {
	TestFileCount *int  `json:"test_files,omitempty"`
	ErrorLimit    *int  `json:"error_limit,omitempty"`
	Enabled       *bool `json:"enabled,omitempty"`
}

type FSPConf 

type FSPConf struct {
	Paths cos.StrSet `json:"paths,omitempty" list:"readonly"`
}

func (*FSPConf) MarshalJSON 

func (c *FSPConf) MarshalJSON() (data []byte, err error)

func (*FSPConf) UnmarshalJSON 

func (c *FSPConf) UnmarshalJSON(data []byte) (err error)

func (*FSPConf) Validate 

func (c *FSPConf) Validate(contextConfig *Config) error

type GenShard 

type GenShard map[string][]byte

type HTTPBckObj 

type HTTPBckObj struct {
	Bck        Bck
	ObjName    string
	OrigURLBck string // HTTP URL of the bucket (object name excluded)
}

Represents the AIS bucket, object and URL associated with a HTTP resource

func NewHTTPObj 

func NewHTTPObj(u *url.URL) *HTTPBckObj

func NewHTTPObjPath 

func NewHTTPObjPath(rawURL string) (*HTTPBckObj, error)

type HTTPConf 

type HTTPConf struct {
	Proto           string `json:"-"`                 // http or https (set depending on `UseHTTPS`)
	Certificate     string `json:"server_crt"`        // HTTPS: openssl certificate
	Key             string `json:"server_key"`        // HTTPS: openssl key
	WriteBufferSize int    `json:"write_buffer_size"` // http.Transport.WriteBufferSize; zero defaults to 4KB
	ReadBufferSize  int    `json:"read_buffer_size"`  // http.Transport.ReadBufferSize; ditto
	UseHTTPS        bool   `json:"use_https"`         // use HTTPS instead of HTTP
	SkipVerify      bool   `json:"skip_verify"`       // skip HTTPS cert verification (used with self-signed certs)
	Chunked         bool   `json:"chunked_transfer"`  // https://tools.ietf.org/html/rfc7230#page-36
}

type HTTPConfToUpdate 

type HTTPConfToUpdate struct {
	Certificate     *string `json:"server_crt,omitempty"`
	Key             *string `json:"server_key,omitempty"`
	WriteBufferSize *int    `json:"write_buffer_size,omitempty" list:"readonly"`
	ReadBufferSize  *int    `json:"read_buffer_size,omitempty" list:"readonly"`
	UseHTTPS        *bool   `json:"use_https,omitempty"`
	SkipVerify      *bool   `json:"skip_verify,omitempty"`
	Chunked         *bool   `json:"chunked_transfer,omitempty"`
}

type HTTPRange 

type HTTPRange struct {
	Start, Length int64
}

HTTPRange specifies the byte range to be sent to the client.

func ParseMultiRange 

func ParseMultiRange(s string, size int64) (ranges []HTTPRange, err error)

ParseMultiRange parses a Range Header string as per RFC 7233. ErrNoOverlap is returned if none of the ranges overlap with the [0, size) content.

func (HTTPRange) ContentRange 

func (r HTTPRange) ContentRange(size int64) string

type HreqArgs 

type HreqArgs struct {
	BodyR    io.Reader
	Header   http.Header // request headers
	Query    url.Values  // query, e.g. ?a=x&b=y&c=z
	RawQuery string      // raw query
	Method   string
	Base     string // base URL, e.g. http://xyz.abc
	Path     string // path URL, e.g. /x/y/z
	Body     []byte
}

HreqArgs specifies HTTP request that we want to send. BodyR optimizes-out allocations - if non-nil and implements `io.Closer`, will always be closed by `client.Do`

func AllocHra 

func AllocHra() (a *HreqArgs)

func (*HreqArgs) Req 

func (u *HreqArgs) Req() (*http.Request, error)

func (*HreqArgs) ReqWithCancel 

func (u *HreqArgs) ReqWithCancel() (*http.Request, context.Context, context.CancelFunc, error)

ReqWithCancel creates request with ability to cancel it.

func (*HreqArgs) ReqWithTimeout 

func (u *HreqArgs) ReqWithTimeout(timeout time.Duration) (*http.Request, context.Context, context.CancelFunc, error)

func (*HreqArgs) URL 

func (u *HreqArgs) URL() string

type IterField 

type IterField interface {
	Value() any                          // returns the value
	String() string                      // string representation of the value
	SetValue(v any, force ...bool) error // `force` ignores `tagReadonly` (to be used with caution!)
}

Represents a single named field

type IterOpts 

type IterOpts struct {
	// Skip fields based on allowed tag
	Allowed string
	// Visits all the fields, not only the leaves.
	VisitAll bool
	// Read-only walk is true by default (compare with `UpdateFieldValue`)
	// Note that `tagOmitempty` is limited to read-only - has no effect when `OnlyRead == false`.
	OnlyRead bool
}

type KeepaliveConf 

type KeepaliveConf struct {
	Proxy       KeepaliveTrackerConf `json:"proxy"`  // how proxy tracks target keepalives
	Target      KeepaliveTrackerConf `json:"target"` // how target tracks primary proxies keepalives
	RetryFactor uint8                `json:"retry_factor"`
}

func (*KeepaliveConf) Validate 

func (c *KeepaliveConf) Validate() (err error)

type KeepaliveConfToUpdate 

type KeepaliveConfToUpdate struct {
	Proxy       *KeepaliveTrackerConfToUpdate `json:"proxy,omitempty"`
	Target      *KeepaliveTrackerConfToUpdate `json:"target,omitempty"`
	RetryFactor *uint8                        `json:"retry_factor,omitempty"`
}

type KeepaliveTrackerConf 

type KeepaliveTrackerConf struct {
	Name     string       `json:"name"`     // "heartbeat", "average"
	Interval cos.Duration `json:"interval"` // keepalive interval
	Factor   uint8        `json:"factor"`   // only average
}

config for one keepalive tracker all type of trackers share the same struct, not all fields are used by all trackers

type KeepaliveTrackerConfToUpdate 

type KeepaliveTrackerConfToUpdate struct {
	Interval *cos.Duration `json:"interval,omitempty"`
	Name     *string       `json:"name,omitempty" list:"readonly"`
	Factor   *uint8        `json:"factor,omitempty"`
}

type L4Conf 

type L4Conf struct {
	Proto         string `json:"proto"`           // tcp, udp
	SndRcvBufSize int    `json:"sndrcv_buf_size"` // SO_RCVBUF and SO_SNDBUF
}

type LRUConf 

type LRUConf struct {
	// DontEvictTimeStr denotes the period of time during which eviction of an object
	// is forbidden [atime, atime + DontEvictTime]
	DontEvictTime cos.Duration `json:"dont_evict_time"`

	// CapacityUpdTimeStr denotes the frequency at which AIStore updates local capacity utilization
	CapacityUpdTime cos.Duration `json:"capacity_upd_time"`

	// Enabled: LRU will only run when set to true
	Enabled bool `json:"enabled"`
}

func (*LRUConf) String 

func (c *LRUConf) String() string

func (*LRUConf) Validate 

func (c *LRUConf) Validate() (err error)

type LRUConfToUpdate 

type LRUConfToUpdate struct {
	DontEvictTime   *cos.Duration `json:"dont_evict_time,omitempty"`
	CapacityUpdTime *cos.Duration `json:"capacity_upd_time,omitempty"`
	Enabled         *bool         `json:"enabled,omitempty"`
}

type LocalConfig 

type LocalConfig struct {
	ConfigDir string         `json:"confdir"`
	LogDir    string         `json:"log_dir"`
	HostNet   LocalNetConfig `json:"host_net"`
	FSP       FSPConf        `json:"fspaths"`
	TestFSP   TestFSPConf    `json:"test_fspaths"`
}

func (*LocalConfig) AddPath 

func (c *LocalConfig) AddPath(mpath string)

func (*LocalConfig) DelPath 

func (c *LocalConfig) DelPath(mpath string)

func (*LocalConfig) JspOpts 

func (*LocalConfig) JspOpts() jsp.Options

func (*LocalConfig) TestingEnv 

func (c *LocalConfig) TestingEnv() bool

type LocalNetConfig 

type LocalNetConfig struct {
	Hostname             string `json:"hostname"`
	HostnameIntraControl string `json:"hostname_intra_control"`
	HostnameIntraData    string `json:"hostname_intra_data"`
	Port                 int    `json:"port,string"`               // listening port
	PortIntraControl     int    `json:"port_intra_control,string"` // listening port for intra control network
	PortIntraData        int    `json:"port_intra_data,string"`    // listening port for intra data network
	// omit
	UseIntraControl bool `json:"-"`
	UseIntraData    bool `json:"-"`
}

Network config specific to node

func (*LocalNetConfig) Validate 

func (c *LocalNetConfig) Validate(contextConfig *Config) (err error)

type LogConf 

type LogConf struct {
	Level     string       `json:"level"`      // log level (aka verbosity)
	MaxSize   cos.Size     `json:"max_size"`   // exceeding this size triggers log rotation
	MaxTotal  cos.Size     `json:"max_total"`  // (sum individual log sizes); exceeding this number triggers cleanup
	FlushTime cos.Duration `json:"flush_time"` // log flush interval
	StatsTime cos.Duration `json:"stats_time"` // log stats interval (must be a multiple of `PeriodConf.StatsTime`)
}

func (*LogConf) Validate 

func (c *LogConf) Validate() error

type LogConfToUpdate 

type LogConfToUpdate struct {
	Level     *string       `json:"level,omitempty"`
	MaxSize   *cos.Size     `json:"max_size,omitempty"`
	MaxTotal  *cos.Size     `json:"max_total,omitempty"`
	FlushTime *cos.Duration `json:"flush_time,omitempty"`
	StatsTime *cos.Duration `json:"stats_time,omitempty"`
}

type LsoEntries 

type LsoEntries []*LsoEntry // separately from (code-generated) objlist* - no need to msgpack

type LsoEntry 

type LsoEntry struct {
	Name     string `json:"name" msg:"n"`                            // object name
	Checksum string `json:"checksum,omitempty" msg:"cs,omitempty"`   // checksum
	Atime    string `json:"atime,omitempty" msg:"a,omitempty"`       // last access time; formatted as ListObjsMsg.TimeFormat
	Version  string `json:"version,omitempty" msg:"v,omitempty"`     // e.g., GCP int64 generation, AWS version (string), etc.
	Location string `json:"location,omitempty" msg:"t,omitempty"`    // [tnode:mountpath]
	Custom   string `json:"custom-md,omitempty" msg:"m,omitempty"`   // custom metadata: ETag, MD5, CRC, user-defined ...
	Size     int64  `json:"size,string,omitempty" msg:"s,omitempty"` // size in bytes
	Copies   int16  `json:"copies,omitempty" msg:"c,omitempty"`      // ## copies (NOTE: for non-replicated object copies == 1)
	Flags    uint16 `json:"flags,omitempty" msg:"f,omitempty"`
}

LsoEntry corresponds to a single entry in the LsoResult and contains file and directory metadata as per the ListObjsMsg `Flags` is a bit field where ibits 0-2 are reserved for object status (all statuses are mutually exclusive)

func (*LsoEntry) CheckExists 

func (be *LsoEntry) CheckExists() bool

func (*LsoEntry) CopyWithProps 

func (be *LsoEntry) CopyWithProps(propsSet cos.StrSet) (ne *LsoEntry)

func (*LsoEntry) DecodeMsg 

func (z *LsoEntry) DecodeMsg(dc *msgp.Reader) (err error)

DecodeMsg implements msgp.Decodable

func (*LsoEntry) EncodeMsg 

func (z *LsoEntry) EncodeMsg(en *msgp.Writer) (err error)

EncodeMsg implements msgp.Encodable

func (*LsoEntry) IsInsideArch 

func (be *LsoEntry) IsInsideArch() bool

func (*LsoEntry) IsStatusOK 

func (be *LsoEntry) IsStatusOK() bool

func (*LsoEntry) Msgsize 

func (z *LsoEntry) Msgsize() (s int)

Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message

func (*LsoEntry) SetPresent 

func (be *LsoEntry) SetPresent()

func (*LsoEntry) Status 

func (be *LsoEntry) Status() uint16

func (*LsoEntry) String 

func (be *LsoEntry) String() string

type LsoResult 

type LsoResult struct {
	UUID              string      `json:"uuid"`
	ContinuationToken string      `json:"continuation_token"`
	Entries           []*LsoEntry `json:"entries"`
	Flags             uint32      `json:"flags"`
}

LsoResult carries the results of `api.ListObjects`, `BackendProvider.ListObjects`, and friends

func ConcatLso 

func ConcatLso(lists []*LsoResult, maxSize uint) (objs *LsoResult)

ConcatLso takes a slice of object lists and concatenates them: all lists are appended to the first one. If maxSize is greater than 0, the resulting list is sorted and truncated. Zero or negative maxSize means returning all objects.

func MergeLso 

func MergeLso(lists []*LsoResult, maxSize uint) *LsoResult

MergeLso takes a few object lists and merges its content: properties of objects with the same name are merged. The function is used to merge eg. the requests from targets for a cloud bucket list: each target reads cloud list page and fills with available info. Then the proxy receives these lists that contains the same objects and merges them to get single list with merged information for each object. If maxSize is greater than 0, the resulting list is sorted and truncated. Zero or negative maxSize means returning all objects.

func (*LsoResult) DecodeMsg 

func (z *LsoResult) DecodeMsg(dc *msgp.Reader) (err error)

DecodeMsg implements msgp.Decodable

func (*LsoResult) EncodeMsg 

func (z *LsoResult) EncodeMsg(en *msgp.Writer) (err error)

EncodeMsg implements msgp.Encodable

func (*LsoResult) Msgsize 

func (z *LsoResult) Msgsize() (s int)

Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message

type MemsysConf 

type MemsysConf struct {
	MinFree        cos.Size     `json:"min_free"`
	DefaultBufSize cos.Size     `json:"default_buf"`
	SizeToGC       cos.Size     `json:"to_gc"`
	HousekeepTime  cos.Duration `json:"hk_time"`
	MinPctTotal    int          `json:"min_pct_total"`
	MinPctFree     int          `json:"min_pct_free"`
}

func (*MemsysConf) Validate 

func (c *MemsysConf) Validate() (err error)

type MemsysConfToUpdate 

type MemsysConfToUpdate struct {
	MinFree        *cos.Size     `json:"min_free,omitempty"`
	DefaultBufSize *cos.Size     `json:"default_buf,omitempty"`
	SizeToGC       *cos.Size     `json:"to_gc,omitempty"`
	HousekeepTime  *cos.Duration `json:"hk_time,omitempty"`
	MinPctTotal    *int          `json:"min_pct_total,omitempty"`
	MinPctFree     *int          `json:"min_pct_free,omitempty"`
}

type MirrorConf 

type MirrorConf struct {
	Copies  int64 `json:"copies"`       // num copies
	Burst   int   `json:"burst_buffer"` // xaction channel (buffer) size
	Enabled bool  `json:"enabled"`      // enabled (to generate copies)
}

func (*MirrorConf) String 

func (c *MirrorConf) String() string

func (*MirrorConf) Validate 

func (c *MirrorConf) Validate() error

func (*MirrorConf) ValidateAsProps 

func (c *MirrorConf) ValidateAsProps(...any) error

type MirrorConfToUpdate 

type MirrorConfToUpdate struct {
	Copies  *int64 `json:"copies,omitempty"`
	Burst   *int   `json:"burst_buffer,omitempty"`
	Enabled *bool  `json:"enabled,omitempty"`
}

type NLP 

type NLP interface {
	Lock()
	TryLock(timeout time.Duration) bool
	TryRLock(timeout time.Duration) bool
	Unlock()
}

implemented by cluster.Bck

type NetConf 

type NetConf struct {
	L4   L4Conf   `json:"l4"`
	HTTP HTTPConf `json:"http"`
}

func (*NetConf) Validate 

func (c *NetConf) Validate() (err error)

type NetConfToUpdate 

type NetConfToUpdate struct {
	HTTP *HTTPConfToUpdate `json:"http,omitempty"`
}

type Ns 

type Ns struct {
	// UUID of other remote AIS cluster (for now only used for AIS). Note
	// that we can have different namespaces which refer to same UUID (cluster).
	// This means that in a sense UUID is a parent of the actual namespace.
	UUID string `json:"uuid" yaml:"uuid"`
	// Name uniquely identifies a namespace under the same UUID (which may
	// be empty) and is used in building FQN for the objects.
	Name string `json:"name" yaml:"name"`
}

Ns (or Namespace) adds additional layer for scoping the data under the same provider. It allows to have same dataset and bucket names under different namespaces what allows for easy data manipulation without affecting data in different namespaces.

func ParseNsUname 

func ParseNsUname(s string) (n Ns)

Parses [@uuid][#namespace]. It does a little bit more than just parsing a string from `Uname` so that logic can be reused in different places.

func (Ns) IsAnyRemote 

func (n Ns) IsAnyRemote() bool

func (Ns) IsGlobal 

func (n Ns) IsGlobal() bool

func (Ns) IsRemote 

func (n Ns) IsRemote() bool

func (Ns) String 

func (n Ns) String() (res string)

func (Ns) Uname 

func (n Ns) Uname() string

type OWT 

type OWT int

Object Write Transaction (OWT) is used to control some of the aspects of creating new objects in the cluster. In particular, OwtGet* group below simultaneously specifies cold-GET variations (that all involve reading from a remote backend) and the associated locking (that will always reflect a tradeoff between consistency and parallelism) 

const (
	OwtPut             OWT = iota // PUT
	OwtMigrate                    // migrate or replicate objects within cluster (e.g. global rebalance)
	OwtPromote                    // promote target-accessible files and directories
	OwtFinalize                   // finalize object archives
	OwtGetTryLock                 // if !try-lock(exclusive) { return error }; read from remote; ...
	OwtGetLock                    // lock(exclusive); read from remote; ...
	OwtGet                        // GET (with upgrading read-lock in the local-write path)
	OwtGetPrefetchLock            // (used for maximum parallelism when prefetching)
)

func (*OWT) FromS 

func (owt *OWT) FromS(s string)

func (OWT) String 

func (owt OWT) String() (s string)

func (OWT) ToS 

func (owt OWT) ToS() (s string)

type ObjAttrs 

type ObjAttrs struct {
	Cksum    *cos.Cksum `json:"checksum,omitempty"`  // object checksum (cloned)
	CustomMD cos.StrKVs `json:"custom-md,omitempty"` // custom metadata: ETag, MD5, CRC, user-defined ...
	Ver      string     `json:"version,omitempty"`   // object version
	Atime    int64      `json:"atime,omitempty"`     // access time (nanoseconds since UNIX epoch)
	Size     int64      `json:"size,omitempty"`      // object size (bytes)
}

see also apc.HdrObjAtime et al. @ api/apc/const.go (and note that naming must be consistent)

func (*ObjAttrs) AtimeUnix 

func (oa *ObjAttrs) AtimeUnix() int64

func (*ObjAttrs) Checksum 

func (oa *ObjAttrs) Checksum() *cos.Cksum

func (*ObjAttrs) CopyFrom 

func (oa *ObjAttrs) CopyFrom(oah ObjAttrsHolder, skipCksum ...bool)

clone ObjAttrsHolder => ObjAttrs (see also lom.CopyAttrs)

func (*ObjAttrs) DelCustomKeys 

func (oa *ObjAttrs) DelCustomKeys(keys ...string)

func (*ObjAttrs) Equal 

func (oa *ObjAttrs) Equal(rem ObjAttrsHolder) (equal bool)

local <=> remote equality in the context of cold-GET and download. This function decides whether we need to go ahead and re-read the object from its remote location.

Other than a "binary" size and version checks, rest logic goes as follows: objects are considered equal if they have a) the same version and at least one matching checksum, or b) the same remote "source" and at least one matching checksum, or c) two matching checksums. (See also note below.)

Note that mismatch in any given checksum type immediately renders inequality and return from the function.

func (*ObjAttrs) FromHeader 

func (oa *ObjAttrs) FromHeader(hdr http.Header) (cksum *cos.Cksum)

NOTE: returning checksum separately for subsequent validation

func (*ObjAttrs) GetCustomKey 

func (oa *ObjAttrs) GetCustomKey(key string) (val string, exists bool)

func (*ObjAttrs) GetCustomMD 

func (oa *ObjAttrs) GetCustomMD() cos.StrKVs

func (*ObjAttrs) SetCksum 

func (oa *ObjAttrs) SetCksum(ty, val string)

func (*ObjAttrs) SetCustomKey 

func (oa *ObjAttrs) SetCustomKey(k, v string)

func (*ObjAttrs) SetCustomMD 

func (oa *ObjAttrs) SetCustomMD(md cos.StrKVs)

func (*ObjAttrs) SizeBytes 

func (oa *ObjAttrs) SizeBytes(_ ...bool) int64

func (*ObjAttrs) String 

func (oa *ObjAttrs) String() string

func (*ObjAttrs) Version 

func (oa *ObjAttrs) Version(_ ...bool) string

type ObjAttrsHolder 

type ObjAttrsHolder interface {
	SizeBytes(special ...bool) int64
	Version(special ...bool) string
	Checksum() *cos.Cksum
	AtimeUnix() int64
	GetCustomMD() cos.StrKVs
	GetCustomKey(key string) (val string, exists bool)
	SetCustomKey(k, v string)
	String() string
}

type ObjectProps 

type ObjectProps struct {
	Bck Bck `json:"bucket"`
	ObjAttrs
	Name     string `json:"name"`
	Location string `json:"location"` // see also `GetPropsLocation`
	Mirror   struct {
		Paths  []string `json:"paths,omitempty"`
		Copies int      `json:"copies,omitempty"`
	} `json:"mirror"`
	EC struct {
		Generation   int64 `json:"generation"`
		DataSlices   int   `json:"data"`
		ParitySlices int   `json:"parity"`
		IsECCopy     bool  `json:"replicated"`
	} `json:"ec"`
	Present bool `json:"present"`
}

object properties NOTE: embeds system `ObjAttrs` that in turn includes custom user-defined NOTE: compare with `apc.LsoMsg`

type ParseURIOpts 

type ParseURIOpts struct {
	DefaultProvider string // If set the provider will be used as provider.
	IsQuery         bool   // Determines if the URI should be parsed as query.
}

type PeriodConf 

type PeriodConf struct {
	StatsTime     cos.Duration `json:"stats_time"`      // collect and publish stats; other house-keeping
	RetrySyncTime cos.Duration `json:"retry_sync_time"` // metasync retry
	NotifTime     cos.Duration `json:"notif_time"`      // (IC notifications)
}

NOTE: StatsTime is a one important timer

func (*PeriodConf) Validate 

func (c *PeriodConf) Validate() error

type PeriodConfToUpdate 

type PeriodConfToUpdate struct {
	StatsTime     *cos.Duration `json:"stats_time,omitempty"`
	RetrySyncTime *cos.Duration `json:"retry_sync_time,omitempty"`
	NotifTime     *cos.Duration `json:"notif_time,omitempty"`
}

type PropsValidator 

type PropsValidator interface {
	ValidateAsProps(arg ...any) error
}

type ProxyConf 

type ProxyConf struct {
	PrimaryURL   string `json:"primary_url"`
	OriginalURL  string `json:"original_url"`
	DiscoveryURL string `json:"discovery_url"`
	NonElectable bool   `json:"non_electable"`
}

type ProxyConfToUpdate 

type ProxyConfToUpdate struct {
	PrimaryURL   *string `json:"primary_url,omitempty"`
	OriginalURL  *string `json:"original_url,omitempty"`
	DiscoveryURL *string `json:"discovery_url,omitempty"`
	NonElectable *bool   `json:"non_electable,omitempty"`
}

type QueryBcks 

type QueryBcks Bck

func (*QueryBcks) AddToQuery 

func (qbck *QueryBcks) AddToQuery(query url.Values) url.Values

func (QueryBcks) Contains 

func (qbck QueryBcks) Contains(other *Bck) bool

func (*QueryBcks) DisplayProvider 

func (qbck *QueryBcks) DisplayProvider() string

func (QueryBcks) Equal 

func (qbck QueryBcks) Equal(bck *Bck) bool

func (*QueryBcks) IsAIS 

func (qbck *QueryBcks) IsAIS() bool

func (*QueryBcks) IsBucket 

func (qbck *QueryBcks) IsBucket() bool

QueryBcks is a Bck that _can_ have an empty Name. (TODO: extend to support prefix and regex.)

func (*QueryBcks) IsCloud 

func (qbck *QueryBcks) IsCloud() bool

func (*QueryBcks) IsEmpty 

func (qbck *QueryBcks) IsEmpty() bool

func (*QueryBcks) IsHDFS 

func (qbck *QueryBcks) IsHDFS() bool

func (*QueryBcks) IsHTTP 

func (qbck *QueryBcks) IsHTTP() bool

func (*QueryBcks) IsRemoteAIS 

func (qbck *QueryBcks) IsRemoteAIS() bool

func (QueryBcks) String 

func (qbck QueryBcks) String() string

func (*QueryBcks) Validate 

func (qbck *QueryBcks) Validate() (err error)

type RebalanceConf 

type RebalanceConf struct {
	Compression   string       `json:"compression"`       // enum { CompressAlways, ... } in api/apc/compression.go
	DestRetryTime cos.Duration `json:"dest_retry_time"`   // max wait for ACKs & neighbors to complete
	SbundleMult   int          `json:"bundle_multiplier"` // stream-bundle multiplier: num streams to destination
	Enabled       bool         `json:"enabled"`           // true=auto-rebalance | manual rebalancing
}

func (*RebalanceConf) String 

func (c *RebalanceConf) String() string

func (*RebalanceConf) Validate 

func (c *RebalanceConf) Validate() error

type RebalanceConfToUpdate 

type RebalanceConfToUpdate struct {
	DestRetryTime *cos.Duration `json:"dest_retry_time,omitempty"`
	Compression   *string       `json:"compression,omitempty"`
	SbundleMult   *int          `json:"bundle_multiplier"`
	Enabled       *bool         `json:"enabled,omitempty"`
}

type ResilverConf 

type ResilverConf struct {
	Enabled bool `json:"enabled"` // true=auto-resilver | manual resilvering
}

func (*ResilverConf) String 

func (c *ResilverConf) String() string

func (*ResilverConf) Validate 

func (*ResilverConf) Validate() error

type ResilverConfToUpdate 

type ResilverConfToUpdate struct {
	Enabled *bool `json:"enabled,omitempty"`
}

type RetryArgs 

type RetryArgs struct {
	Call    func() (int, error)
	IsFatal func(error) bool

	Action string
	Caller string

	SoftErr uint // How many retires on ConnectionRefused or ConnectionReset error.
	HardErr uint // How many retries on any other error.
	Sleep   time.Duration

	Verbosity int  // Determine the verbosity level.
	BackOff   bool // If requests should be retried less and less often.
	IsClient  bool // true: client (e.g. dev tools, etc.)
}

type SelectObjsMsg 

type SelectObjsMsg struct {
	Template string   `json:"template"`
	ObjNames []string `json:"objnames"`
}

List of object names _or_ a template specifying { Prefix, Regex, and/or Range }

func (*SelectObjsMsg) HasTemplate 

func (lrm *SelectObjsMsg) HasTemplate() bool

func (*SelectObjsMsg) IsList 

func (lrm *SelectObjsMsg) IsList() bool

type SpaceConf 

type SpaceConf struct {
	// Storage Cleanup watermark: used capacity (%) that triggers cleanup
	// (deleted objects and buckets, extra copies, etc.)
	CleanupWM int64 `json:"cleanupwm"`

	// LowWM: used capacity low-watermark (% of total local storage capacity)
	LowWM int64 `json:"lowwm"`

	// HighWM: used capacity high-watermark (% of total local storage capacity)
	// - LRU starts evicting objects when the currently used capacity (used-cap) gets above HighWM
	// - and keeps evicting objects until the used-cap gets below LowWM
	// - while self-throttling itself in accordance with target utilization
	HighWM int64 `json:"highwm"`

	// Out-of-Space: if exceeded, the target starts failing new PUTs and keeps
	// failing them until its local used-cap gets back below HighWM (see above)
	OOS int64 `json:"out_of_space"`
}

func (*SpaceConf) String 

func (c *SpaceConf) String() string

func (*SpaceConf) Validate 

func (c *SpaceConf) Validate() (err error)

func (*SpaceConf) ValidateAsProps 

func (c *SpaceConf) ValidateAsProps(...any) error

type SpaceConfToUpdate 

type SpaceConfToUpdate struct {
	CleanupWM *int64 `json:"cleanupwm,omitempty"`
	LowWM     *int64 `json:"lowwm,omitempty"`
	HighWM    *int64 `json:"highwm,omitempty"`
	OOS       *int64 `json:"out_of_space,omitempty"`
}

type TCBConf 

type TCBConf struct {
	Compression string `json:"compression"`       // enum { CompressAlways, ... } in api/apc/compression.go
	SbundleMult int    `json:"bundle_multiplier"` // stream-bundle multiplier: num streams to destination
}

func (*TCBConf) Validate 

func (c *TCBConf) Validate() error

type TCBConfToUpdate 

type TCBConfToUpdate struct {
	Compression *string `json:"compression,omitempty"`
	SbundleMult *int    `json:"bundle_multiplier,omitempty"`
}

type TCObjsMsg 

type TCObjsMsg struct {
	ToBck Bck `json:"tobck"`
	SelectObjsMsg
	TxnUUID string `json:"-"`
	apc.TCBMsg
	ContinueOnError bool `json:"coer"` // ditto
}

Multi-object copy & transform (see also: TCBMsg)

type TestFSPConf 

type TestFSPConf struct {
	Root     string `json:"root"`
	Count    int    `json:"count"`
	Instance int    `json:"instance"`
}

func (*TestFSPConf) Validate 

func (c *TestFSPConf) Validate(contextConfig *Config) (err error)

validate root and (NOTE: testing only) generate and fill-in counted FSP.Paths

func (*TestFSPConf) ValidateMpath 

func (c *TestFSPConf) ValidateMpath(p string) (err error)

type TimeoutConf 

type TimeoutConf struct {
	CplaneOperation cos.Duration `json:"cplane_operation"` // readonly - change requires restart
	MaxKeepalive    cos.Duration `json:"max_keepalive"`    // ditto (see `timeout struct` below)
	MaxHostBusy     cos.Duration `json:"max_host_busy"`
	Startup         cos.Duration `json:"startup_time"`
	JoinAtStartup   cos.Duration `json:"join_startup_time"` // (join cluster at startup) timeout
	SendFile        cos.Duration `json:"send_file_time"`
}

maximum intra-cluster latencies (in the increasing order)

func (*TimeoutConf) Validate 

func (c *TimeoutConf) Validate() error

type TimeoutConfToUpdate 

type TimeoutConfToUpdate struct {
	CplaneOperation *cos.Duration `json:"cplane_operation,omitempty"`
	MaxKeepalive    *cos.Duration `json:"max_keepalive,omitempty"`
	MaxHostBusy     *cos.Duration `json:"max_host_busy,omitempty"`
	Startup         *cos.Duration `json:"startup_time,omitempty"`
	JoinAtStartup   *cos.Duration `json:"join_startup_time,omitempty"`
	SendFile        *cos.Duration `json:"send_file_time,omitempty"`
}

type TransportArgs 

type TransportArgs struct {
	DialTimeout      time.Duration
	Timeout          time.Duration
	IdleConnTimeout  time.Duration
	IdleConnsPerHost int
	MaxIdleConns     int
	SndRcvBufSize    int
	WriteBufferSize  int
	ReadBufferSize   int
	UseHTTPS         bool
	UseHTTPProxyEnv  bool
	// For HTTPS mode only: if true, the client does not verify server's
	// certificate. It is useful for clusters with self-signed certificates.
	SkipVerify bool
}

Options to create a transport for HTTP client

func (*TransportArgs) ConnControl 

func (args *TransportArgs) ConnControl(_ syscall.RawConn) (cntl func(fd uintptr))

type TransportConf 

type TransportConf struct {
	MaxHeaderSize int `json:"max_header"`   // max transport header buffer (default=4K)
	Burst         int `json:"burst_buffer"` // num sends with no back pressure; see also AIS_STREAM_BURST_NUM
	// two no-new-transmissions durations:
	// * IdleTeardown: sender terminates the connection (to reestablish it upon the very first/next PDU)
	// * QuiesceTime:  safe to terminate or transition to the next (in re: rebalance) stage
	IdleTeardown cos.Duration `json:"idle_teardown"`
	QuiesceTime  cos.Duration `json:"quiescent"`
	// lz4
	// max uncompressed block size, one of [64K, 256K(*), 1M, 4M]
	// fastcompression.blogspot.com/2013/04/lz4-streaming-format-final.html
	LZ4BlockMaxSize  cos.Size `json:"lz4_block"`
	LZ4FrameChecksum bool     `json:"lz4_frame_checksum"`
}

func (*TransportConf) Validate 

func (c *TransportConf) Validate() (err error)

NOTE: uncompressed block sizes - the enum currently supported by the github.com/pierrec/lz4

type TransportConfToUpdate 

type TransportConfToUpdate struct {
	MaxHeaderSize    *int          `json:"max_header,omitempty" list:"readonly"`
	Burst            *int          `json:"burst_buffer,omitempty" list:"readonly"`
	IdleTeardown     *cos.Duration `json:"idle_teardown,omitempty"`
	QuiesceTime      *cos.Duration `json:"quiescent,omitempty"`
	LZ4BlockMaxSize  *cos.Size     `json:"lz4_block,omitempty"`
	LZ4FrameChecksum *bool         `json:"lz4_frame_checksum,omitempty"`
}

type Validator 

type Validator interface {
	Validate() error
}

type VersionConf 

type VersionConf struct {
	// Determines if the versioning is enabled.
	Enabled bool `json:"enabled"`

	// Validate object version upon warm GET.
	ValidateWarmGet bool `json:"validate_warm_get"`
}

func (*VersionConf) String 

func (c *VersionConf) String() string

func (*VersionConf) Validate 

func (c *VersionConf) Validate() error

type VersionConfToUpdate 

type VersionConfToUpdate struct {
	Enabled         *bool `json:"enabled,omitempty"`
	ValidateWarmGet *bool `json:"validate_warm_get,omitempty"`
}

type WritePolicyConf 

type WritePolicyConf struct {
	Data apc.WritePolicy `json:"data"`
	MD   apc.WritePolicy `json:"md"`
}

func (*WritePolicyConf) Validate 

func (c *WritePolicyConf) Validate() (err error)

func (*WritePolicyConf) ValidateAsProps 

func (c *WritePolicyConf) ValidateAsProps(...any) error

type WritePolicyConfToUpdate 

type WritePolicyConfToUpdate struct {
	Data *apc.WritePolicy `json:"data,omitempty" list:"readonly"` // NOTE: NIY
	MD   *apc.WritePolicy `json:"md,omitempty"`
}

Source Files

View all Source files

Directories

Path Synopsis
Package cos provides common low-level types and utilities for all aistore projects
 Package cos provides common low-level types and utilities for all aistore projects
Package provides debug utilities
 Package provides debug utilities
Package feat: global runtime-configurable feature flags
 Package feat: global runtime-configurable feature flags
Package fname contains filename constants and common system directories
 Package fname contains filename constants and common system directories
Package jsp (JSON persistence) provides utilities to store and load arbitrary JSON-encoded structures with optional checksumming and compression.
 Package jsp (JSON persistence) provides utilities to store and load arbitrary JSON-encoded structures with optional checksumming and compression.
Package k8s provides utilities for communicating with Kubernetes cluster.
 Package k8s provides utilities for communicating with Kubernetes cluster.
Package kvdb provides a local key/value database server for AIS.
 Package kvdb provides a local key/value database server for AIS.
Package mono provides low-level monotonic time
 Package mono provides low-level monotonic time
Package prob implements fully features dynamic probabilistic filter.
 Package prob implements fully features dynamic probabilistic filter.
Package xoshiro256 implements the xoshiro256** RNG no-copyright
 Package xoshiro256 implements the xoshiro256** RNG no-copyright

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