pdapi

package
v1.1.0 Latest Latest
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 Go to latest Published: May 28, 2020 License: Apache-2.0 Imports: 21 Imported by: 1

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Index

Constants

View Source 
const (
	DefaultTimeout = 5 * time.Second
)

Variables

This section is empty.

Functions

func GetTLSConfig added in v1.1.0 

func GetTLSConfig(kubeCli kubernetes.Interface, namespace Namespace, tcName string, caCert []byte) (*tls.Config, error)

GetTLSConfig returns *tls.Config for given TiDB cluster. It loads in-cluster root ca if caCert is empty.

func PdClientURL 

func PdClientURL(namespace Namespace, clusterName string, scheme string) string

pdClientUrl builds the url of pd client

Types

type Action 

type Action struct {
	ID          uint64
	Name        string
	Labels      map[string]string
	Replication PDReplicationConfig
}

type ActionType 

type ActionType string
const (
	GetHealthActionType                ActionType = "GetHealth"
	GetConfigActionType                ActionType = "GetConfig"
	GetClusterActionType               ActionType = "GetCluster"
	GetMembersActionType               ActionType = "GetMembers"
	GetStoresActionType                ActionType = "GetStores"
	GetTombStoneStoresActionType       ActionType = "GetTombStoneStores"
	GetStoreActionType                 ActionType = "GetStore"
	DeleteStoreActionType              ActionType = "DeleteStore"
	SetStoreStateActionType            ActionType = "SetStoreState"
	DeleteMemberByIDActionType         ActionType = "DeleteMemberByID"
	DeleteMemberActionType             ActionType = "DeleteMember "
	SetStoreLabelsActionType           ActionType = "SetStoreLabels"
	UpdateReplicationActionType        ActionType = "UpdateReplicationConfig"
	BeginEvictLeaderActionType         ActionType = "BeginEvictLeader"
	EndEvictLeaderActionType           ActionType = "EndEvictLeader"
	GetEvictLeaderSchedulersActionType ActionType = "GetEvictLeaderSchedulers"
	GetPDLeaderActionType              ActionType = "GetPDLeader"
	TransferPDLeaderActionType         ActionType = "TransferPDLeader"
)

type FakePDClient 

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

func NewFakePDClient 

func NewFakePDClient() *FakePDClient

func (*FakePDClient) AddReaction 

func (pc *FakePDClient) AddReaction(actionType ActionType, reaction Reaction)

func (*FakePDClient) BeginEvictLeader 

func (pc *FakePDClient) BeginEvictLeader(storeID uint64) error

func (*FakePDClient) DeleteMember 

func (pc *FakePDClient) DeleteMember(name string) error

func (*FakePDClient) DeleteMemberByID 

func (pc *FakePDClient) DeleteMemberByID(id uint64) error

func (*FakePDClient) DeleteStore 

func (pc *FakePDClient) DeleteStore(id uint64) error

func (*FakePDClient) EndEvictLeader 

func (pc *FakePDClient) EndEvictLeader(storeID uint64) error

func (*FakePDClient) GetCluster 

func (pc *FakePDClient) GetCluster() (*metapb.Cluster, error)

func (*FakePDClient) GetConfig 

func (pc *FakePDClient) GetConfig() (*PDConfigFromAPI, error)

func (*FakePDClient) GetEvictLeaderSchedulers 

func (pc *FakePDClient) GetEvictLeaderSchedulers() ([]string, error)

func (*FakePDClient) GetHealth 

func (pc *FakePDClient) GetHealth() (*HealthInfo, error)

func (*FakePDClient) GetMembers 

func (pc *FakePDClient) GetMembers() (*MembersInfo, error)

func (*FakePDClient) GetPDLeader 

func (pc *FakePDClient) GetPDLeader() (*pdpb.Member, error)

func (*FakePDClient) GetStore 

func (pc *FakePDClient) GetStore(id uint64) (*StoreInfo, error)

func (*FakePDClient) GetStores 

func (pc *FakePDClient) GetStores() (*StoresInfo, error)

func (*FakePDClient) GetTombStoneStores 

func (pc *FakePDClient) GetTombStoneStores() (*StoresInfo, error)

func (*FakePDClient) SetStoreLabels 

func (pc *FakePDClient) SetStoreLabels(storeID uint64, labels map[string]string) (bool, error)

SetStoreLabels sets TiKV labels

func (*FakePDClient) SetStoreState added in v1.1.0 

func (pc *FakePDClient) SetStoreState(id uint64, state string) error

func (*FakePDClient) TransferPDLeader 

func (pc *FakePDClient) TransferPDLeader(memberName string) error

func (*FakePDClient) UpdateReplicationConfig added in v1.1.0 

func (pc *FakePDClient) UpdateReplicationConfig(config PDReplicationConfig) error

UpdateReplicationConfig updates the replication config

type FakePDControl 

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

func NewFakePDControl 

func NewFakePDControl(kubeCli kubernetes.Interface) *FakePDControl

func (*FakePDControl) GetPDClient 

func (pdc *FakePDControl) GetPDClient(namespace Namespace, tcName string, tlsEnabled bool) PDClient

GetPDClient provides a PDClient of real pd cluster,if the PDClient not existing, it will create new one.

func (*FakePDControl) SetPDClient 

func (fpc *FakePDControl) SetPDClient(namespace Namespace, tcName string, pdclient PDClient)

type FileLogConfig added in v1.1.0 

type FileLogConfig struct {
	// Log filename, leave empty to disable file log.
	Filename string `toml:"filename,omitempty" json:"filename,omitempty"`
	// Is log rotate enabled.
	LogRotate bool `toml:"log-rotate,omitempty" json:"log-rotate,omitempty"`
	// Max size for a single file, in MB.
	MaxSize int `toml:"max-size,omitempty" json:"max-size,omitempty"`
	// Max log keep days, default is never deleting.
	MaxDays int `toml:"max-days,omitempty" json:"max-days,omitempty"`
	// Maximum number of old log files to retain.
	MaxBackups int `toml:"max-backups,omitempty" json:"max-backups,omitempty"`
}

+k8s:openapi-gen=true

type HealthInfo 

type HealthInfo struct {
	Healths []MemberHealth
}

HealthInfo define PD's healthy info

type MemberHealth 

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

MemberHealth define a pd member's healthy info

type MembersInfo 

type MembersInfo struct {
	Header     *pdpb.ResponseHeader `json:"header,omitempty"`
	Members    []*pdpb.Member       `json:"members,omitempty"`
	Leader     *pdpb.Member         `json:"leader,omitempty"`
	EtcdLeader *pdpb.Member         `json:"etcd_leader,omitempty"`
}

MembersInfo is PD members info returned from PD RESTful interface type Members map[string][]*pdpb.Member

type MetaStore 

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

MetaStore is TiKV store status defined in protobuf

type Namespace 

type Namespace string

Namespace is a newtype of a string

type NotFoundReaction 

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

func (*NotFoundReaction) Error 

func (nfr *NotFoundReaction) Error() string

type PDClient 

type PDClient interface {
	// GetHealth returns the PD's health info
	GetHealth() (*HealthInfo, error)
	// GetConfig returns PD's config
	GetConfig() (*PDConfigFromAPI, error)
	// GetCluster returns used when syncing pod labels.
	GetCluster() (*metapb.Cluster, error)
	// GetMembers returns all PD members from cluster
	GetMembers() (*MembersInfo, error)
	// GetStores lists all TiKV stores from cluster
	GetStores() (*StoresInfo, error)
	// GetTombStoneStores lists all tombstone stores from cluster
	GetTombStoneStores() (*StoresInfo, error)
	// GetStore gets a TiKV store for a specific store id from cluster
	GetStore(storeID uint64) (*StoreInfo, error)
	// storeLabelsEqualNodeLabels compares store labels with node labels
	// for historic reasons, PD stores TiKV labels as []*StoreLabel which is a key-value pair slice
	SetStoreLabels(storeID uint64, labels map[string]string) (bool, error)
	// UpdateReplicationConfig updates the replication config
	UpdateReplicationConfig(config PDReplicationConfig) error
	// DeleteStore deletes a TiKV store from cluster
	DeleteStore(storeID uint64) error
	// SetStoreState sets store to specified state.
	SetStoreState(storeID uint64, state string) error
	// DeleteMember deletes a PD member from cluster
	DeleteMember(name string) error
	// DeleteMemberByID deletes a PD member from cluster
	DeleteMemberByID(memberID uint64) error
	// BeginEvictLeader initiates leader eviction for a storeID.
	// This is used when upgrading a pod.
	BeginEvictLeader(storeID uint64) error
	// EndEvictLeader is used at the end of pod upgrade.
	EndEvictLeader(storeID uint64) error
	// GetEvictLeaderSchedulers gets schedulers of evict leader
	GetEvictLeaderSchedulers() ([]string, error)
	// GetPDLeader returns pd leader
	GetPDLeader() (*pdpb.Member, error)
	// TransferPDLeader transfers pd leader to specified member
	TransferPDLeader(name string) error
}

PDClient provides pd server's api

func NewPDClient 

func NewPDClient(url string, timeout time.Duration, tlsConfig *tls.Config) PDClient

NewPDClient returns a new PDClient

type PDConfigFromAPI added in v1.1.0 

type PDConfigFromAPI struct {

	// Log related config.
	Log *PDLogConfig `toml:"log,omitempty" json:"log,omitempty"`

	// Immutable, change should be made through pd-ctl after cluster creation
	Schedule *PDScheduleConfig `toml:"schedule,omitempty" json:"schedule,omitempty"`

	// Immutable, change should be made through pd-ctl after cluster creation
	Replication *PDReplicationConfig `toml:"replication,omitempty" json:"replication,omitempty"`
}

PDConfigFromAPI is the configuration from PD API +k8s:openapi-gen=true

type PDControlInterface 

type PDControlInterface interface {
	// GetPDClient provides PDClient of the tidb cluster.
	GetPDClient(Namespace, string, bool) PDClient
}

PDControlInterface is an interface that knows how to manage and get tidb cluster's PD client

func NewDefaultPDControl 

func NewDefaultPDControl(kubeCli kubernetes.Interface) PDControlInterface

NewDefaultPDControl returns a defaultPDControl instance

type PDEtcdApi added in v1.1.0 

type PDEtcdApi interface {
	PutKey(key, value string) error

	DeleteKey(key string) error
}

func NewPdEtcdClient added in v1.1.0 

func NewPdEtcdClient(url string, timeout time.Duration, tlsConfig *tls.Config) (PDEtcdApi, error)

type PDLabelPropertyConfig added in v1.1.0 

type PDLabelPropertyConfig map[string]PDStoreLabels

type PDLogConfig added in v1.1.0 

type PDLogConfig struct {
	// Log level.
	// Optional: Defaults to info
	Level string `toml:"level,omitempty" json:"level,omitempty"`
	// Log format. one of json, text, or console.
	Format string `toml:"format,omitempty" json:"format,omitempty"`
	// Disable automatic timestamps in output.
	DisableTimestamp *bool `toml:"disable-timestamp,omitempty" json:"disable-timestamp,omitempty"`
	// File log config.
	File *FileLogConfig `toml:"file,omitempty" json:"file,omitempty"`
	// Development puts the logger in development mode, which changes the
	// behavior of DPanicLevel and takes stacktraces more liberally.
	Development *bool `toml:"development,omitempty" json:"development,omitempty"`
	// DisableCaller stops annotating logs with the calling function's file
	// name and line number. By default, all logs are annotated.
	DisableCaller *bool `toml:"disable-caller,omitempty" json:"disable-caller,omitempty"`
	// DisableStacktrace completely disables automatic stacktrace capturing. By
	// default, stacktraces are captured for WarnLevel and above logs in
	// development and ErrorLevel and above in production.
	DisableStacktrace *bool `toml:"disable-stacktrace,omitempty" json:"disable-stacktrace,omitempty"`
	// DisableErrorVerbose stops annotating logs with the full verbose error
	// message.
	DisableErrorVerbose *bool `toml:"disable-error-verbose,omitempty" json:"disable-error-verbose,omitempty"`
}

PDLogConfig serializes log related config in toml/json. +k8s:openapi-gen=true

type PDReplicationConfig added in v1.1.0 

type PDReplicationConfig struct {
	// MaxReplicas is the number of replicas for each region.
	// Immutable, change should be made through pd-ctl after cluster creation
	// Optional: Defaults to 3
	MaxReplicas *uint64 `toml:"max-replicas,omitempty" json:"max-replicas,omitempty"`

	// The label keys specified the location of a store.
	// The placement priorities is implied by the order of label keys.
	// For example, ["zone", "rack"] means that we should place replicas to
	// different zones first, then to different racks if we don't have enough zones.
	// Immutable, change should be made through pd-ctl after cluster creation
	// +k8s:openapi-gen=false
	LocationLabels StringSlice `toml:"location-labels,omitempty" json:"location-labels,omitempty"`
	// StrictlyMatchLabel strictly checks if the label of TiKV is matched with LocaltionLabels.
	// Immutable, change should be made through pd-ctl after cluster creation.
	// Imported from v3.1.0
	StrictlyMatchLabel *bool `toml:"strictly-match-label,omitempty" json:"strictly-match-label,string,omitempty"`

	// When PlacementRules feature is enabled. MaxReplicas and LocationLabels are not used anymore.
	EnablePlacementRules *bool `toml:"enable-placement-rules" json:"enable-placement-rules,string,omitempty"`
}

PDReplicationConfig is the replication configuration. +k8s:openapi-gen=true

type PDScheduleConfig added in v1.1.0 

type PDScheduleConfig struct {
	// If the snapshot count of one store is greater than this value,
	// it will never be used as a source or target store.
	// Immutable, change should be made through pd-ctl after cluster creation
	// Optional: Defaults to 3
	MaxSnapshotCount *uint64 `toml:"max-snapshot-count,omitempty" json:"max-snapshot-count,omitempty"`
	// Immutable, change should be made through pd-ctl after cluster creation
	// Optional: Defaults to 16
	MaxPendingPeerCount *uint64 `toml:"max-pending-peer-count,omitempty" json:"max-pending-peer-count,omitempty"`
	// If both the size of region is smaller than MaxMergeRegionSize
	// and the number of rows in region is smaller than MaxMergeRegionKeys,
	// it will try to merge with adjacent regions.
	// Immutable, change should be made through pd-ctl after cluster creation
	// Optional: Defaults to 20
	MaxMergeRegionSize *uint64 `toml:"max-merge-region-size,omitempty" json:"max-merge-region-size,omitempty"`
	// Immutable, change should be made through pd-ctl after cluster creation
	// Optional: Defaults to 200000
	MaxMergeRegionKeys *uint64 `toml:"max-merge-region-keys,omitempty" json:"max-merge-region-keys,omitempty"`
	// SplitMergeInterval is the minimum interval time to permit merge after split.
	// Immutable, change should be made through pd-ctl after cluster creation
	// Optional: Defaults to 1h
	SplitMergeInterval string `toml:"split-merge-interval,omitempty" json:"split-merge-interval,omitempty"`
	// PatrolRegionInterval is the interval for scanning region during patrol.
	// Immutable, change should be made through pd-ctl after cluster creation
	PatrolRegionInterval string `toml:"patrol-region-interval,omitempty" json:"patrol-region-interval,omitempty"`
	// MaxStoreDownTime is the max duration after which
	// a store will be considered to be down if it hasn't reported heartbeats.
	// Immutable, change should be made through pd-ctl after cluster creation
	// Optional: Defaults to 30m
	MaxStoreDownTime string `toml:"max-store-down-time,omitempty" json:"max-store-down-time,omitempty"`
	// LeaderScheduleLimit is the max coexist leader schedules.
	// Immutable, change should be made through pd-ctl after cluster creation.
	// Optional: Defaults to 4.
	// Imported from v3.1.0
	LeaderScheduleLimit *uint64 `toml:"leader-schedule-limit,omitempty" json:"leader-schedule-limit,omitempty"`
	// RegionScheduleLimit is the max coexist region schedules.
	// Immutable, change should be made through pd-ctl after cluster creation
	// Optional: Defaults to 2048
	RegionScheduleLimit *uint64 `toml:"region-schedule-limit,omitempty" json:"region-schedule-limit,omitempty"`
	// ReplicaScheduleLimit is the max coexist replica schedules.
	// Immutable, change should be made through pd-ctl after cluster creation
	// Optional: Defaults to 64
	ReplicaScheduleLimit *uint64 `toml:"replica-schedule-limit,omitempty" json:"replica-schedule-limit,omitempty"`
	// MergeScheduleLimit is the max coexist merge schedules.
	// Immutable, change should be made through pd-ctl after cluster creation
	// Optional: Defaults to 8
	MergeScheduleLimit *uint64 `toml:"merge-schedule-limit,omitempty" json:"merge-schedule-limit,omitempty"`
	// HotRegionScheduleLimit is the max coexist hot region schedules.
	// Immutable, change should be made through pd-ctl after cluster creation
	// Optional: Defaults to 4
	HotRegionScheduleLimit *uint64 `toml:"hot-region-schedule-limit,omitempty" json:"hot-region-schedule-limit,omitempty"`
	// HotRegionCacheHitThreshold is the cache hits threshold of the hot region.
	// If the number of times a region hits the hot cache is greater than this
	// threshold, it is considered a hot region.
	// Immutable, change should be made through pd-ctl after cluster creation
	HotRegionCacheHitsThreshold *uint64 `toml:"hot-region-cache-hits-threshold,omitempty" json:"hot-region-cache-hits-threshold,omitempty"`
	// TolerantSizeRatio is the ratio of buffer size for balance scheduler.
	// Immutable, change should be made through pd-ctl after cluster creation.
	// Imported from v3.1.0
	TolerantSizeRatio *float64 `toml:"tolerant-size-ratio,omitempty" json:"tolerant-size-ratio,omitempty"`
	//
	//      high space stage         transition stage           low space stage
	//   |--------------------|-----------------------------|-------------------------|
	//   ^                    ^                             ^                         ^
	//   0       HighSpaceRatio * capacity       LowSpaceRatio * capacity          capacity
	//
	// LowSpaceRatio is the lowest usage ratio of store which regraded as low space.
	// When in low space, store region score increases to very large and varies inversely with available size.
	// Immutable, change should be made through pd-ctl after cluster creation
	LowSpaceRatio *float64 `toml:"low-space-ratio,omitempty" json:"low-space-ratio,omitempty"`
	// HighSpaceRatio is the highest usage ratio of store which regraded as high space.
	// High space means there is a lot of spare capacity, and store region score varies directly with used size.
	// Immutable, change should be made through pd-ctl after cluster creation
	HighSpaceRatio *float64 `toml:"high-space-ratio,omitempty" json:"high-space-ratio,omitempty"`
	// DisableLearner is the option to disable using AddLearnerNode instead of AddNode
	// Immutable, change should be made through pd-ctl after cluster creation
	DisableLearner *bool `toml:"disable-raft-learner,omitempty" json:"disable-raft-learner,string,omitempty"`

	// DisableRemoveDownReplica is the option to prevent replica checker from
	// removing down replicas.
	// Immutable, change should be made through pd-ctl after cluster creation
	DisableRemoveDownReplica *bool `toml:"disable-remove-down-replica,omitempty" json:"disable-remove-down-replica,string,omitempty"`
	// DisableReplaceOfflineReplica is the option to prevent replica checker from
	// repalcing offline replicas.
	// Immutable, change should be made through pd-ctl after cluster creation
	DisableReplaceOfflineReplica *bool `toml:"disable-replace-offline-replica,omitempty" json:"disable-replace-offline-replica,string,omitempty"`
	// DisableMakeUpReplica is the option to prevent replica checker from making up
	// replicas when replica count is less than expected.
	// Immutable, change should be made through pd-ctl after cluster creation
	DisableMakeUpReplica *bool `toml:"disable-make-up-replica,omitempty" json:"disable-make-up-replica,string,omitempty"`
	// DisableRemoveExtraReplica is the option to prevent replica checker from
	// removing extra replicas.
	// Immutable, change should be made through pd-ctl after cluster creation
	DisableRemoveExtraReplica *bool `toml:"disable-remove-extra-replica,omitempty" json:"disable-remove-extra-replica,string,omitempty"`
	// DisableLocationReplacement is the option to prevent replica checker from
	// moving replica to a better location.
	// Immutable, change should be made through pd-ctl after cluster creation
	DisableLocationReplacement *bool `toml:"disable-location-replacement,omitempty" json:"disable-location-replacement,string,omitempty"`
	// DisableNamespaceRelocation is the option to prevent namespace checker
	// from moving replica to the target namespace.
	// Immutable, change should be made through pd-ctl after cluster creation
	DisableNamespaceRelocation *bool `toml:"disable-namespace-relocation,omitempty" json:"disable-namespace-relocation,string,omitempty"`

	// Schedulers support for loding customized schedulers
	// Immutable, change should be made through pd-ctl after cluster creation
	Schedulers *PDSchedulerConfigs `toml:"schedulers,omitempty" json:"schedulers-v2,omitempty"` // json v2 is for the sake of compatible upgrade

	// Only used to display
	SchedulersPayload map[string]string `toml:"schedulers-payload" json:"schedulers-payload,omitempty"`

	// EnableOneWayMerge is the option to enable one way merge. This means a Region can only be merged into the next region of it.
	// Imported from v3.1.0
	EnableOneWayMerge *bool `toml:"enable-one-way-merge" json:"enable-one-way-merge,string,omitempty"`
	// EnableCrossTableMerge is the option to enable cross table merge. This means two Regions can be merged with different table IDs.
	// This option only works when key type is "table".
	// Imported from v3.1.0
	EnableCrossTableMerge *bool `toml:"enable-cross-table-merge" json:"enable-cross-table-merge,string,omitempty"`
}

ScheduleConfig is the schedule configuration. +k8s:openapi-gen=true

type PDSchedulerConfig added in v1.1.0 

type PDSchedulerConfig struct {
	// Immutable, change should be made through pd-ctl after cluster creation
	Type string `toml:"type,omitempty" json:"type,omitempty"`
	// Immutable, change should be made through pd-ctl after cluster creation
	Args []string `toml:"args,omitempty" json:"args,omitempty"`
	// Immutable, change should be made through pd-ctl after cluster creation
	Disable *bool `toml:"disable,omitempty" json:"disable,omitempty"`
}

PDSchedulerConfig is customized scheduler configuration +k8s:openapi-gen=true

type PDSchedulerConfigs added in v1.1.0 

type PDSchedulerConfigs []PDSchedulerConfig

type PDStoreLabel added in v1.1.0 

type PDStoreLabel struct {
	Key   string `toml:"key,omitempty" json:"key,omitempty"`
	Value string `toml:"value,omitempty" json:"value,omitempty"`
}

PDStoreLabel is the config item of LabelPropertyConfig. +k8s:openapi-gen=true

type PDStoreLabels added in v1.1.0 

type PDStoreLabels []PDStoreLabel

type Reaction 

type Reaction func(action *Action) (interface{}, error)

type StoreInfo 

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

StoreInfo is a single store info returned from PD RESTful interface

type StoreStatus 

type StoreStatus struct {
	Capacity           typeutil.ByteSize `json:"capacity"`
	Available          typeutil.ByteSize `json:"available"`
	LeaderCount        int               `json:"leader_count"`
	RegionCount        int               `json:"region_count"`
	SendingSnapCount   uint32            `json:"sending_snap_count"`
	ReceivingSnapCount uint32            `json:"receiving_snap_count"`
	ApplyingSnapCount  uint32            `json:"applying_snap_count"`
	IsBusy             bool              `json:"is_busy"`

	StartTS         time.Time         `json:"start_ts"`
	LastHeartbeatTS time.Time         `json:"last_heartbeat_ts"`
	Uptime          typeutil.Duration `json:"uptime"`
}

StoreStatus is TiKV store status returned from PD RESTful interface

type StoresInfo 

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

StoresInfo is stores info returned from PD RESTful interface

type StringSlice added in v1.1.0 

type StringSlice []string

StringSlice is more friendly to json encode/decode

func (StringSlice) MarshalJSON added in v1.1.0 

func (s StringSlice) MarshalJSON() ([]byte, error)

MarshalJSON returns the size as a JSON string.

func (*StringSlice) UnmarshalJSON added in v1.1.0 

func (s *StringSlice) UnmarshalJSON(text []byte) error

UnmarshalJSON parses a JSON string into the bytesize.

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