entity

package
v0.0.0-...-7b3ddb2 Latest Latest
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 Go to latest Published: Nov 11, 2019 License: Apache-2.0 Imports: 10 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	NodeIdSequence      = "/id/node"
	SpaceIdSequence     = "/id/space"
	DBIdSequence        = "/id/db"
	PartitionIdSequence = "/id/partition"
)

ids sequence key for etcd

View Source 
const (
	PrefixUser         = "/user/"
	PrefixLock         = "/lock/"
	PrefixLockCluster  = "/lock/_cluster"
	PrefixServer       = "/server/"
	PrefixSpace        = "/space/"
	PrefixPartition    = "/partition/"
	PrefixDataBase     = "/db/"
	PrefixDataBaseBody = "/db/body/"
)
View Source 
const ClusterCleanJobKey = "/cluster/cleanjob"

when master runing clean job , it will set value to this key, when other got key , now time less than this they will skip this job

View Source 
const (
	Gamma = "gamma"
)

Variables

View Source 
var PriviMap = map[string]UserPrivi{
	"select": PrivilegeSelect,
	"insert": PrivilegeInsert,
	"update": PrivilegeUpdate,
	"delete": PrivilegeDelete,

	"create":   PrivilegeCreate,
	"alter":    PrivilegeAlter,
	"drop":     PrivilegeDrop,
	"truncate": PrivilegeTruncate,

	"grant": PrivilegeGrant,
}

Functions

func DBKeyBody 

func DBKeyBody(id int64) string

func DBKeyId 

func DBKeyId(id int64) string

func DBKeyName 

func DBKeyName(name string) string

func HasPrivi 

func HasPrivi(userPrivi UserPrivi, checkPrivi UserPrivi) bool

func LockSpaceKey 

func LockSpaceKey(db, space string) string

func PartitionKey 

func PartitionKey(partitionID uint32) string

func ServerKey 

func ServerKey(name NodeID) string

func SpaceKey 

func SpaceKey(dbID, spaceId int64) string

func UserKey 

func UserKey(username string) string

Types

type BuildVersion 

type BuildVersion struct {
	BuildVersion string `json:"build_version"`
	BuildTime    string `json:"build_time"`
	CommitID     string `json:"commit_id"`
}

type ChangeMember 

type ChangeMember struct {
	PartitionID PartitionID          `json:"partition_id"`
	NodeID      NodeID               `json:"node_id"`
	Method      proto.ConfChangeType `json:"method"`
}

type DB 

type DB struct {
	Id   DBID     `json:"id,omitempty"`
	Name string   `json:"name,omitempty"`
	Ps   []string `json:"ps,omitempty"` //if set this , your db only use you config ps
}

db/id/[dbId]:[dbName] db/name/[dbName]:[dbId] db/body/[dbId]:[dbBody]

func (*DB) Validate 

func (db *DB) Validate() error

type DBID 

type DBID = int64

DBID is a custom type for database ID

type Engine 

type Engine struct {
	Name        string `json:"name"`
	IndexSize   int64  `json:"index_size"`
	MaxSize     int64  `json:"max_size"`
	Nprobe      *int   `json:"nprobe,omitempty"`
	MetricType  *int   `json:"metric_type,omitempty"`
	Ncentroids  *int   `json:"ncentroids,omitempty"`
	Nsubvector  *int   `json:"nsubvector,omitempty"`
	NbitsPerIdx *int   `json:"nbits_per_idx,omitempty"`
}

func NewDefaultEngine 

func NewDefaultEngine() *Engine

func (*Engine) UnmarshalJSON 

func (engine *Engine) UnmarshalJSON(bs []byte) error

type FlushEntity 

type FlushEntity struct {
	F      func() error
	FlushC chan error
}

type NodeID 

type NodeID = uint64

node id for ps

type Partition 

type Partition struct {
	Id      PartitionID `json:"id,omitempty"`
	SpaceId SpaceID     `json:"space_id,omitempty"`
	DBId    DBID        `json:"db_id,omitempty"`
	//Slot stores the lower limit of the slot range
	Slot       SlotID   `json:"partition_slot"`
	LeaderID   NodeID   `json:"leader_name,omitempty"`
	Replicas   []NodeID `json:"replicas,omitempty"` //leader in replicas
	UpdateTime int64    `json:"update_time,omitempty"`
	Path       string   `json:"-"`
	// contains filtered or unexported fields
}

partition/[id]:[body]

func (*Partition) GetStatus 

func (p *Partition) GetStatus() PartitionStatus

this is safe method for get status

func (*Partition) SetStatus 

func (p *Partition) SetStatus(s PartitionStatus)

this is safe method for set status

type PartitionForSearch 

type PartitionForSearch struct {
	*Partition
	DBName, SpaceName string
}

type PartitionID 

type PartitionID = uint32

PartitionID is a custom type for partition ID

type PartitionInfo 

type PartitionInfo struct {
	PartitionID PartitionID     `json:"pid,omitempty"`
	DocNum      uint64          `json:"doc_num,omitempty"`
	Size        int64           `json:"size,omitempty"`
	ReplicaNum  int             `json:"replica_num,omitempty"`
	Path        string          `json:"path,omitempty"`
	Unreachable []uint64        `json:"unreachable,omitempty"`
	Status      PartitionStatus `json:"status,omitempty"`
	Color       string          `json:"color,omitempty"`
	Ip          string          `json:"ip,omitempty"`
	NodeID      uint64          `json:"node_id,omitempty"`
}

get partition from every partitions

type PartitionStatus 

type PartitionStatus uint8
const (
	PA_UNKNOW PartitionStatus = iota
	PA_INVALID
	PA_CLOSED
	PA_READONLY
	PA_READWRITE
)

type Replica 

type Replica struct {
	NodeID        NodeID `json:"nodeID,omitempty"`
	HeartbeatAddr string `json:"heartbeat_addr,omitempty"`
	ReplicateAddr string `json:"replicate_addr,omitempty"`
	RpcAddr       string `json:"rpc_addr,omitempty"`
}

it use for raft add or remove node

func (*Replica) Marshal 

func (m *Replica) Marshal() ([]byte, error)

func (Replica) String 

func (m Replica) String() string

func (*Replica) Unmarshal 

func (m *Replica) Unmarshal(dAtA []byte) error

type Server 

type Server struct {
	ID                NodeID        `json:"name,omitempty"` //unique name for raft
	RpcPort           uint16        `json:"rpc_port"`
	RaftHeartbeatPort uint16        `json:"raft_heartbeat_port"`
	RaftReplicatePort uint16        `json:"raft_replicate_port"`
	Ip                string        `json:"ip,omitempty"`
	PartitionIds      []PartitionID `json:"p_ids,omitempty"`
	Size              uint64        `json:"size,omitempty"`
	Private           bool          `json:"private"`
	Version           *BuildVersion `json:"version"`
}

server/id:[body] ttl 3m 3s

func (*Server) Replica 

func (s *Server) Replica() *Replica

func (*Server) RpcAddr 

func (s *Server) RpcAddr() string

type SlotID 

type SlotID = uint32

SlotID is a custom type for slot ID

type Space 

type Space struct {
	Id           SpaceID         `json:"id,omitempty"`
	Name         string          `json:"name,omitempty"` //user setting
	Version      Version         `json:"version,omitempty"`
	DBId         DBID            `json:"db_id,omitempty"`
	Enabled      *bool           `json:"enabled"`    //Enabled flag whether the space can work
	Partitions   []*Partition    `json:"partitions"` // partitionids not sorted
	PartitionNum int             `json:"partition_num"`
	ReplicaNum   uint8           `json:"replica_num"`
	Properties   json.RawMessage `json:"properties"`
	Engine       *Engine         `json:"engine"`
	Models       json.RawMessage `json:"models,omitempty"` //json model config for python plugin

}

space/[dbId]/[spaceId]:[spaceBody]

func (*Space) GetPartition 

func (this *Space) GetPartition(id PartitionID) *Partition

func (*Space) PartitionId 

func (this *Space) PartitionId(slotID SlotID) PartitionID

func (*Space) String 

func (this *Space) String() string

func (*Space) Validate 

func (space *Space) Validate() error

check params is ok

type SpaceID 

type SpaceID = int64

SpaceID is a custom type for space ID

type User 

type User struct {
	Name        string
	Password    string
	AllowedHost string
	Privi       UserPrivi
	UserDB      map[string]struct{}
	HeadKey     string
}

type UserPrivi 

type UserPrivi uint64
const (
	PrivilegeNone     UserPrivi = 0
	PrivilegeSelect   UserPrivi = 1
	PrivilegeInsert   UserPrivi = 1 << 1
	PrivilegeUpdate   UserPrivi = 1 << 2
	PrivilegeDelete   UserPrivi = 1 << 3
	PrivilegeCreate   UserPrivi = 1 << 4
	PrivilegeAlter    UserPrivi = 1 << 5
	PrivilegeDrop     UserPrivi = 1 << 6
	PrivilegeTruncate UserPrivi = 1 << 7
	PrivilegeGrant    UserPrivi = 1 << 8
)

func LackPrivi 

func LackPrivi(userPrivi UserPrivi, checkPrivi UserPrivi) UserPrivi

func (UserPrivi) String 

func (userPrivi UserPrivi) String() string

type Version 

type Version = uint64

Version is a custom type for Partition

Source Files

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