metanode

package
v0.0.0-...-d1c0873 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Mar 7, 2022 License: Apache-2.0 Imports: 39 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	KB = 1 << (10 * iota)
	MB
	GB
)
View Source 
const (
	ForceClosedConnect = true
	NoClosedConnect    = false
)
View Source 
const (
	UpdateNodeInfoTicket     = 1 * time.Minute
	DefaultDeleteBatchCounts = 128
)
View Source 
const (
	AsyncDeleteInterval           = 10 * time.Second
	UpdateVolTicket               = 2 * time.Minute
	BatchCounts                   = 128
	OpenRWAppendOpt               = os.O_CREATE | os.O_RDWR | os.O_APPEND
	TempFileValidTime             = 86400 //units: sec
	DeleteInodeFileExtension      = "INODE_DEL"
	DeleteWorkerCnt               = 10
	InodeNLink0DelayDeleteSeconds = 24 * 3600
)
View Source 
const (
	MinDeleteBatchCounts = 100
	MaxSleepCnt          = 10
)
View Source 
const (
	DeleteMarkFlag = 1 << 0
)
View Source 
const ExpiredPartitionPrefix = "expired_"
View Source 
const (
	MaxUsedMemFactor = 1.1
)
View Source 
const (
	SnapshotSign = ".sign"
)
View Source 
const (
	StatPeriod = time.Minute * time.Duration(1)
)

metrics

Variables

View Source 
var (
	ErrNoLeader   = errors.New("no leader")
	ErrNotALeader = errors.New("not a leader")
)
View Source 
var (
	ErrIllegalHeartbeatAddress = errors.New("illegal heartbeat address")
	ErrIllegalReplicateAddress = errors.New("illegal replicate address")
)
View Source 
var (
	ErrInodeIDOutOfRange = errors.New("inode ID out of range")
)

Errors

View Source 
var Now = NewNowTime()

Now

Functions

func DeleteBatchCount 

func DeleteBatchCount() uint64

func DeleteWorkerSleepMs 

func DeleteWorkerSleepMs()

Types

type APIResponse 

type APIResponse struct {
	Code int         `json:"code"`
	Msg  string      `json:"msg"`
	Data interface{} `json:"data,omitempty"`
}

APIResponse defines the structure of the response to an HTTP request

func NewAPIResponse 

func NewAPIResponse(code int, msg string) *APIResponse

NewAPIResponse returns a new API response.

func (*APIResponse) Marshal 

func (api *APIResponse) Marshal() ([]byte, error)

Marshal is a wrapper function of json.Marshal

type BTree 

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

BTree is the wrapper of Google's btree.

func NewBtree 

func NewBtree() *BTree

NewBtree creates a new btree.

func (*BTree) Ascend 

func (b *BTree) Ascend(fn func(i BtreeItem) bool)

Ascend is the wrapper of the google's btree Ascend. This function scans the entire btree. When the data is huge, it is not recommended to use this function online. Instead, it is recommended to call GetTree to obtain the snapshot of the current btree, and then do the scan on the snapshot.

func (*BTree) AscendGreaterOrEqual 

func (b *BTree) AscendGreaterOrEqual(pivot BtreeItem, iterator func(i BtreeItem) bool)

AscendGreaterOrEqual is the wrapper of the google's btree AscendGreaterOrEqual

func (*BTree) AscendRange 

func (b *BTree) AscendRange(greaterOrEqual, lessThan BtreeItem, iterator func(i BtreeItem) bool)

AscendRange is the wrapper of the google's btree AscendRange.

func (*BTree) CopyFind 

func (b *BTree) CopyFind(key BtreeItem, fn func(i BtreeItem))

func (*BTree) CopyGet 

func (b *BTree) CopyGet(key BtreeItem) (item BtreeItem)

func (*BTree) Delete 

func (b *BTree) Delete(key BtreeItem) (item BtreeItem)

Delete deletes the object by the given key.

func (*BTree) Execute 

func (b *BTree) Execute(fn func(tree *btree.BTree) interface{}) interface{}

func (*BTree) Find 

func (b *BTree) Find(key BtreeItem, fn func(i BtreeItem))

Find searches for the given key in the btree.

func (*BTree) Get 

func (b *BTree) Get(key BtreeItem) (item BtreeItem)

Get returns the object of the given key in the btree.

func (*BTree) GetTree 

func (b *BTree) GetTree() *BTree

GetTree returns the snapshot of a btree.

func (*BTree) Has 

func (b *BTree) Has(key BtreeItem) (ok bool)

Has checks if the key exists in the btree.

func (*BTree) Len 

func (b *BTree) Len() (size int)

Len returns the total number of items in the btree.

func (*BTree) MaxItem 

func (b *BTree) MaxItem() BtreeItem

MaxItem returns the largest item in the btree.

func (*BTree) ReplaceOrInsert 

func (b *BTree) ReplaceOrInsert(key BtreeItem, replace bool) (item BtreeItem, ok bool)

ReplaceOrInsert is the wrapper of google's btree ReplaceOrInsert.

func (*BTree) Reset 

func (b *BTree) Reset()

Reset resets the current btree.

type BatchDeleteDentryReq 

type BatchDeleteDentryReq = proto.BatchDeleteDentryRequest

Client -> MetaNode delete Dentry request

type BatchDeleteDentryResp 

type BatchDeleteDentryResp = proto.BatchDeleteDentryResponse

MetaNode -> Client batch delete Dentry response

type BatchEvictInodeReq 

type BatchEvictInodeReq = proto.BatchEvictInodeRequest

Client -> MetaNode

type BatchUnlinkInoReq 

type BatchUnlinkInoReq = proto.BatchUnlinkInodeRequest

Client -> MetaNode delete Inode request struct

type BatchUnlinkInoResp 

type BatchUnlinkInoResp = proto.BatchUnlinkInodeResponse

MetaNode -> Client delete batch Inode response

type BtreeItem 

type BtreeItem = btree.Item

BtreeItem type alias google btree Item

type CreateDentryReq 

type CreateDentryReq = proto.CreateDentryRequest

Client -> MetaNode create Dentry request struct

type CreateInoReq 

type CreateInoReq = proto.CreateInodeRequest

Client -> MetaNode create Inode request

type CreateInoResp 

type CreateInoResp = proto.CreateInodeResponse

MetaNode -> Client create Inode response

type CreateMetaRangeReq 

type CreateMetaRangeReq = proto.CreateMetaPartitionRequest

Master -> MetaNode create metaPartition request

type CreateMetaRangeResp 

type CreateMetaRangeResp = proto.CreateMetaPartitionResponse

MetaNode -> Master create metaPartition response

type DataPartition 

type DataPartition struct {
	PartitionID   uint64
	Status        int8
	ReplicaNum    uint8
	PartitionType string
	Hosts         []string
}

DataPartition defines the struct of data partition that will be used on the meta node.

func (*DataPartition) GetAllAddrs 

func (dp *DataPartition) GetAllAddrs() (m string)

GetAllAddrs returns all addresses of the data partition.

type DataPartitionsView 

type DataPartitionsView struct {
	DataPartitions []*DataPartition
}

DataPartitionsView defines the view of the data node.

func NewDataPartitionsView 

func NewDataPartitionsView() *DataPartitionsView

type DeleteDentryReq 

type DeleteDentryReq = proto.DeleteDentryRequest

Client -> MetaNode delete Dentry request

type DeleteDentryResp 

type DeleteDentryResp = proto.DeleteDentryResponse

MetaNode -> Client delete Dentry response

type Dentry 

type Dentry struct {
	ParentId uint64 // FileID value of the parent inode.
	Name     string // Name of the current dentry.
	Inode    uint64 // FileID value of the current inode.
	Type     uint32
}

Dentry wraps necessary properties of the `dentry` information in file system. Marshal exporterKey: 

+-------+----------+------+
| item  | ParentId | Name |
+-------+----------+------+
| bytes |    8     | rest |
+-------+----------+------+

Marshal value: 

+-------+-------+------+
| item  | Inode | Type |
+-------+-------+------+
| bytes |   8   |   4  |
+-------+-------+------+

Marshal entity: 

+-------+-----------+--------------+-----------+--------------+
| item  | KeyLength | MarshaledKey | ValLength | MarshaledVal |
+-------+-----------+--------------+-----------+--------------+
| bytes |     4     |   KeyLength  |     4     |   ValLength  |
+-------+-----------+--------------+-----------+--------------+

func (*Dentry) Copy 

func (d *Dentry) Copy() BtreeItem

func (*Dentry) Less 

func (d *Dentry) Less(than BtreeItem) (less bool)

Less tests whether the current dentry is less than the given one. This method is necessary fot B-Tree item implementation.

func (*Dentry) Marshal 

func (d *Dentry) Marshal() (result []byte, err error)

Marshal marshals a dentry into a byte array.

func (*Dentry) MarshalKey 

func (d *Dentry) MarshalKey() (k []byte)

MarshalKey is the bytes version of the MarshalKey method which returns the byte slice result.

func (*Dentry) MarshalValue 

func (d *Dentry) MarshalValue() (k []byte)

MarshalValue marshals the exporterKey to bytes.

func (*Dentry) Unmarshal 

func (d *Dentry) Unmarshal(raw []byte) (err error)

Unmarshal unmarshals the dentry from a byte array.

func (*Dentry) UnmarshalKey 

func (d *Dentry) UnmarshalKey(k []byte) (err error)

UnmarshalKey unmarshals the exporterKey from bytes.

func (*Dentry) UnmarshalValue 

func (d *Dentry) UnmarshalValue(val []byte) (err error)

UnmarshalValue unmarshals the value from bytes.

type DentryBatch 

type DentryBatch []*Dentry

func DentryBatchUnmarshal 

func DentryBatchUnmarshal(raw []byte) (DentryBatch, error)

Unmarshal unmarshals the dentryBatch.

func (DentryBatch) Marshal 

func (d DentryBatch) Marshal() ([]byte, error)

Marshal marshals the dentryBatch into a byte array.

type DentryResponse 

type DentryResponse struct {
	Status uint8
	Msg    *Dentry
}

func NewDentryResponse 

func NewDentryResponse() *DentryResponse

type EvictInodeReq 

type EvictInodeReq = proto.EvictInodeRequest

Client -> MetaNode

type Extend 

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

func NewExtend 

func NewExtend(inode uint64) *Extend

func NewExtendFromBytes 

func NewExtendFromBytes(raw []byte) (*Extend, error)

func (*Extend) Bytes 

func (e *Extend) Bytes() ([]byte, error)

func (*Extend) Copy 

func (e *Extend) Copy() btree.Item

func (*Extend) Get 

func (e *Extend) Get(key []byte) (value []byte, exist bool)

func (*Extend) Less 

func (e *Extend) Less(than btree.Item) bool

func (*Extend) Merge 

func (e *Extend) Merge(o *Extend, override bool)

func (*Extend) Put 

func (e *Extend) Put(key, value []byte)

func (*Extend) Range 

func (e *Extend) Range(visitor func(key, value []byte) bool)

func (*Extend) Remove 

func (e *Extend) Remove(key []byte)

type ExtendOpResult 

type ExtendOpResult struct {
	Status uint8
	Extend *Extend
}

type ExtentsTruncateReq 

type ExtentsTruncateReq = proto.TruncateRequest

Client -> MetaNode

type Inode 

type Inode struct {
	sync.RWMutex
	Inode      uint64 // Inode ID
	Type       uint32
	Uid        uint32
	Gid        uint32
	Size       uint64
	Generation uint64
	CreateTime int64
	AccessTime int64
	ModifyTime int64
	LinkTarget []byte // SymLink target name
	NLink      uint32 // NodeLink counts
	Flag       int32
	Reserved   uint64 // reserved space
	//Extents    *ExtentsTree
	Extents *SortedExtents
}

Inode wraps necessary properties of `Inode` information in the file system. Marshal exporterKey: 

+-------+-------+
| item  | Inode |
+-------+-------+
| bytes |   8   |
+-------+-------+

Marshal value: 

+-------+------+------+-----+----+----+----+--------+------------------+
| item  | Type | Size | Gen | CT | AT | MT | ExtLen | MarshaledExtents |
+-------+------+------+-----+----+----+----+--------+------------------+
| bytes |  4   |  8   |  8  | 8  | 8  | 8  |   4    |      ExtLen      |
+-------+------+------+-----+----+----+----+--------+------------------+

Marshal entity: 

+-------+-----------+--------------+-----------+--------------+
| item  | KeyLength | MarshaledKey | ValLength | MarshaledVal |
+-------+-----------+--------------+-----------+--------------+
| bytes |     4     |   KeyLength  |     4     |   ValLength  |
+-------+-----------+--------------+-----------+--------------+

func NewInode 

func NewInode(ino uint64, t uint32) *Inode

NewInode returns a new Inode instance with specified Inode ID, name and type. The AccessTime and ModifyTime will be set to the current time.

func (*Inode) AppendExtentWithCheck 

func (i *Inode) AppendExtentWithCheck(ek proto.ExtentKey, ct int64, discardExtents []proto.ExtentKey) (delExtents []proto.ExtentKey, status uint8)

func (*Inode) AppendExtents 

func (i *Inode) AppendExtents(eks []proto.ExtentKey, ct int64) (delExtents []proto.ExtentKey)

AppendExtents append the extent to the btree.

func (*Inode) Copy 

func (i *Inode) Copy() BtreeItem

Copy returns a copy of the inode. 

func (i *Inode) DecNLink()

DecNLink decreases the nLink value by one.

func (*Inode) DoReadFunc 

func (i *Inode) DoReadFunc(fn func())

DoFunc executes the given function.

func (*Inode) DoWriteFunc 

func (i *Inode) DoWriteFunc(fn func())

func (*Inode) ExtentsTruncate 

func (i *Inode) ExtentsTruncate(length uint64, ct int64) (delExtents []proto.ExtentKey)
func (i *Inode) GetNLink() uint32

GetNLink returns the nLink value. 

func (i *Inode) IncNLink()

IncNLink increases the nLink value by one.

func (*Inode) IsEmptyDir 

func (i *Inode) IsEmptyDir() bool

func (*Inode) IsTempFile 

func (i *Inode) IsTempFile() bool

func (*Inode) Less 

func (i *Inode) Less(than BtreeItem) bool

Less tests whether the current Inode item is less than the given one. This method is necessary fot B-Tree item implementation.

func (*Inode) Marshal 

func (i *Inode) Marshal() (result []byte, err error)

Marshal marshals the inode into a byte array.

func (*Inode) MarshalKey 

func (i *Inode) MarshalKey() (k []byte)

MarshalKey marshals the exporterKey to bytes.

func (*Inode) MarshalToJSON 

func (i *Inode) MarshalToJSON() ([]byte, error)

MarshalToJSON is the wrapper of json.Marshal.

func (*Inode) MarshalValue 

func (i *Inode) MarshalValue() (val []byte)

MarshalValue marshals the value to bytes.

func (*Inode) SetAttr 

func (i *Inode) SetAttr(req *SetattrRequest)

SetAttr sets the attributes of the inode.

func (*Inode) SetDeleteMark 

func (i *Inode) SetDeleteMark()

SetDeleteMark set the deleteMark flag. TODO markDelete or deleteMark? markDelete has been used in datanode.

func (*Inode) SetMtime 

func (i *Inode) SetMtime()

SetMtime sets mtime to the current time.

func (*Inode) ShouldDelayDelete 

func (i *Inode) ShouldDelayDelete() (ok bool)

inode should delay remove if as 3 conditions: 1. DeleteMarkFlag is unset 2. NLink == 0 3. AccessTime is 7 days ago

func (*Inode) ShouldDelete 

func (i *Inode) ShouldDelete() (ok bool)

ShouldDelete returns if the inode has been marked as deleted.

func (*Inode) String 

func (i *Inode) String() string

String returns the string format of the inode.

func (*Inode) Unmarshal 

func (i *Inode) Unmarshal(raw []byte) (err error)

Unmarshal unmarshals the inode.

func (*Inode) UnmarshalKey 

func (i *Inode) UnmarshalKey(k []byte) (err error)

UnmarshalKey unmarshals the exporterKey from bytes.

func (*Inode) UnmarshalValue 

func (i *Inode) UnmarshalValue(val []byte) (err error)

UnmarshalValue unmarshals the value from bytes.

type InodeBatch 

type InodeBatch []*Inode

func InodeBatchUnmarshal 

func InodeBatchUnmarshal(raw []byte) (InodeBatch, error)

Unmarshal unmarshals the inodeBatch.

func (InodeBatch) Marshal 

func (i InodeBatch) Marshal() ([]byte, error)

Marshal marshals the inodeBatch into a byte array.

type InodeGetReq 

type InodeGetReq = proto.InodeGetRequest

Client -> MetaNode

type InodeGetReqBatch 

type InodeGetReqBatch = proto.BatchInodeGetRequest

Client -> MetaNode

type InodeResponse 

type InodeResponse struct {
	Status uint8
	Msg    *Inode
}

func NewInodeResponse 

func NewInodeResponse() *InodeResponse

type LinkInodeReq 

type LinkInodeReq = proto.LinkInodeRequest

Client -> MetaNode create Link Request

type LinkInodeResp 

type LinkInodeResp = proto.LinkInodeResponse

MetaNode -> Client create Link Response

type LookupReq 

type LookupReq = proto.LookupRequest

MetaNode -> Client lookup

type LookupResp 

type LookupResp = proto.LookupResponse

Client -> MetaNode lookup

type MetaItem 

type MetaItem struct {
	Op uint32 `json:"op"`
	K  []byte `json:"k"`
	V  []byte `json:"v"`
}

MetaItem defines the structure of the metadata operations.

func NewMetaItem 

func NewMetaItem(op uint32, key, value []byte) *MetaItem

NewMetaItem returns a new MetaItem.

func (*MetaItem) MarshalBinary 

func (s *MetaItem) MarshalBinary() (result []byte, err error)

MarshalBinary marshals MetaItem to binary data. Binary frame structure: 

+------+----+------+------+------+------+
| Item | Op | LenK |   K  | LenV |   V  |
+------+----+------+------+------+------+
| byte | 4  |  4   | LenK |  4   | LenV |
+------+----+------+------+------+------+

func (*MetaItem) MarshalJson 

func (s *MetaItem) MarshalJson() ([]byte, error)

MarshalJson

func (*MetaItem) UnmarshalBinary 

func (s *MetaItem) UnmarshalBinary(raw []byte) (err error)

MarshalBinary unmarshal this MetaItem entity from binary data. Binary frame structure: 

+------+----+------+------+------+------+
| Item | Op | LenK |   K  | LenV |   V  |
+------+----+------+------+------+------+
| byte | 4  |  4   | LenK |  4   | LenV |
+------+----+------+------+------+------+

func (*MetaItem) UnmarshalJson 

func (s *MetaItem) UnmarshalJson(data []byte) error

UnmarshalJson unmarshals binary data to MetaItem.

type MetaItemIterator 

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

MetaItemIterator defines the iterator of the MetaItem.

func (*MetaItemIterator) ApplyIndex 

func (si *MetaItemIterator) ApplyIndex() uint64

ApplyIndex returns the applyID of the iterator.

func (*MetaItemIterator) Close 

func (si *MetaItemIterator) Close()

Close closes the iterator.

func (*MetaItemIterator) Next 

func (si *MetaItemIterator) Next() (data []byte, err error)

Next returns the next item.

type MetaNode 

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

The MetaNode manages the dentry and inode information of the meta partitions on a meta node. The data consistency is ensured by Raft.

func NewServer 

func NewServer() *MetaNode

NewServer creates a new meta node instance.

func (*MetaNode) Shutdown 

func (m *MetaNode) Shutdown()

Shutdown stops the meta node.

func (*MetaNode) Start 

func (m *MetaNode) Start(cfg *config.Config) (err error)

Start starts up the meta node with the specified configuration.

  1. Start and load each meta partition from the snapshot.
  2. Restore raftStore fsm of each meta node range.
  3. Start server and accept connection from the master and clients.

func (*MetaNode) Sync 

func (m *MetaNode) Sync()

Sync blocks the invoker's goroutine until the meta node shuts down.

type MetaNodeMetrics 

type MetaNodeMetrics struct {
	MetricMetaPartitionInodeCount *exporter.Gauge
	// contains filtered or unexported fields
}

type MetaPartition 

type MetaPartition interface {
	Start() error
	Stop()
	OpMeta
	LoadSnapshot(path string) error
	ForceSetMetaPartitionToLoadding()
	ForceSetMetaPartitionToFininshLoad()
}

MetaPartition defines the interface for the meta partition operations.

func NewMetaPartition 

func NewMetaPartition(conf *MetaPartitionConfig, manager *metadataManager) MetaPartition

NewMetaPartition creates a new meta partition with the specified configuration.

type MetaPartitionConfig 

type MetaPartitionConfig struct {
	// Identity for raftStore group. RaftStore nodes in the same raftStore group must have the same groupID.
	PartitionId uint64              `json:"partition_id"`
	VolName     string              `json:"vol_name"`
	Start       uint64              `json:"start"` // Minimal Inode ID of this range. (Required during initialization)
	End         uint64              `json:"end"`   // Maximal Inode ID of this range. (Required during initialization)
	Peers       []proto.Peer        `json:"peers"` // Peers information of the raftStore
	Cursor      uint64              `json:"-"`     // Cursor ID of the inode that have been assigned
	NodeId      uint64              `json:"-"`
	RootDir     string              `json:"-"`
	BeforeStart func()              `json:"-"`
	AfterStart  func()              `json:"-"`
	BeforeStop  func()              `json:"-"`
	AfterStop   func()              `json:"-"`
	RaftStore   raftstore.RaftStore `json:"-"`
	ConnPool    *util.ConnectPool   `json:"-"`
}

MetaPartitionConfig is used to create a meta partition.

type MetadataManager 

type MetadataManager interface {
	Start() error
	Stop()
	//CreatePartition(id string, start, end uint64, peers []proto.Peer) error
	HandleMetadataOperation(conn net.Conn, p *Packet, remoteAddr string) error
	GetPartition(id uint64) (MetaPartition, error)
}

MetadataManager manages all the meta partitions.

func NewMetadataManager 

func NewMetadataManager(conf MetadataManagerConfig, metaNode *MetaNode) MetadataManager

NewMetadataManager returns a new metadata manager.

type MetadataManagerConfig 

type MetadataManagerConfig struct {
	NodeID    uint64
	RootDir   string
	ZoneName  string
	RaftStore raftstore.RaftStore
}

MetadataManagerConfig defines the configures in the metadata manager.

type Multipart 

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

Multipart defined necessary fields for multipart session management.

func MultipartFromBytes 

func MultipartFromBytes(raw []byte) *Multipart

func (*Multipart) Bytes 

func (m *Multipart) Bytes() ([]byte, error)

func (*Multipart) Copy 

func (m *Multipart) Copy() btree.Item

func (*Multipart) ID 

func (m *Multipart) ID() string

func (*Multipart) InsertPart 

func (m *Multipart) InsertPart(part *Part, replace bool) (success bool)

Deprecated

func (*Multipart) Less 

func (m *Multipart) Less(than btree.Item) bool

func (*Multipart) LoadOrStorePart 

func (m *Multipart) LoadOrStorePart(part *Part) (actual *Part, stored bool)

func (*Multipart) Parts 

func (m *Multipart) Parts() []*Part

type MultipartExtend 

type MultipartExtend map[string]string

func MultipartExtendFromBytes 

func MultipartExtendFromBytes(raw []byte) MultipartExtend

func NewMultipartExtend 

func NewMultipartExtend() MultipartExtend

func (MultipartExtend) Bytes 

func (me MultipartExtend) Bytes() ([]byte, error)

type NodeInfo 

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

type NowTime 

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

NowTime defines the current time.

func NewNowTime 

func NewNowTime() *NowTime

NewNowTime returns a new NowTime.

func (*NowTime) GetCurrentTime 

func (t *NowTime) GetCurrentTime() (now time.Time)

GetCurrentTime returns the current time.

func (*NowTime) UpdateTime 

func (t *NowTime) UpdateTime(now time.Time)

UpdateTime updates the stored time.

type OpDentry 

type OpDentry interface {
	CreateDentry(req *CreateDentryReq, p *Packet) (err error)
	DeleteDentry(req *DeleteDentryReq, p *Packet) (err error)
	DeleteDentryBatch(req *BatchDeleteDentryReq, p *Packet) (err error)
	UpdateDentry(req *UpdateDentryReq, p *Packet) (err error)
	ReadDir(req *ReadDirReq, p *Packet) (err error)
	ReadDirLimit(req *ReadDirLimitReq, p *Packet) (err error)
	ReadDirOnly(req *ReadDirOnlyReq, p *Packet) (err error)
	Lookup(req *LookupReq, p *Packet) (err error)
	GetDentryTree() *BTree
}

OpDentry defines the interface for the dentry operations.

type OpExtend 

type OpExtend interface {
	SetXAttr(req *proto.SetXAttrRequest, p *Packet) (err error)
	GetXAttr(req *proto.GetXAttrRequest, p *Packet) (err error)
	BatchGetXAttr(req *proto.BatchGetXAttrRequest, p *Packet) (err error)
	RemoveXAttr(req *proto.RemoveXAttrRequest, p *Packet) (err error)
	ListXAttr(req *proto.ListXAttrRequest, p *Packet) (err error)
	UpdateSummaryInfo(req *proto.UpdateSummaryInfoRequest, p *Packet) (err error)
}

type OpExtent 

type OpExtent interface {
	ExtentAppend(req *proto.AppendExtentKeyRequest, p *Packet) (err error)
	ExtentAppendWithCheck(req *proto.AppendExtentKeyWithCheckRequest, p *Packet) (err error)
	ExtentsList(req *proto.GetExtentsRequest, p *Packet) (err error)
	ExtentsTruncate(req *ExtentsTruncateReq, p *Packet) (err error)
	BatchExtentAppend(req *proto.AppendExtentKeysRequest, p *Packet) (err error)
}

OpExtent defines the interface for the extent operations.

type OpInode 

type OpInode interface {
	CreateInode(req *CreateInoReq, p *Packet) (err error)
	UnlinkInode(req *UnlinkInoReq, p *Packet) (err error)
	UnlinkInodeBatch(req *BatchUnlinkInoReq, p *Packet) (err error)
	InodeGet(req *InodeGetReq, p *Packet) (err error)
	InodeGetBatch(req *InodeGetReqBatch, p *Packet) (err error)
	CreateInodeLink(req *LinkInodeReq, p *Packet) (err error)
	EvictInode(req *EvictInodeReq, p *Packet) (err error)
	EvictInodeBatch(req *BatchEvictInodeReq, p *Packet) (err error)
	SetAttr(reqData []byte, p *Packet) (err error)
	GetInodeTree() *BTree
	DeleteInode(req *proto.DeleteInodeRequest, p *Packet) (err error)
	DeleteInodeBatch(req *proto.DeleteInodeBatchRequest, p *Packet) (err error)
}

OpInode defines the interface for the inode operations.

type OpMeta 

type OpMeta interface {
	OpInode
	OpDentry
	OpExtent
	OpPartition
	OpExtend
	OpMultipart
}

OpMeta defines the interface for the metadata operations.

type OpMultipart 

type OpMultipart interface {
	GetMultipart(req *proto.GetMultipartRequest, p *Packet) (err error)
	CreateMultipart(req *proto.CreateMultipartRequest, p *Packet) (err error)
	AppendMultipart(req *proto.AddMultipartPartRequest, p *Packet) (err error)
	RemoveMultipart(req *proto.RemoveMultipartRequest, p *Packet) (err error)
	ListMultipart(req *proto.ListMultipartRequest, p *Packet) (err error)
}

type OpPartition 

type OpPartition interface {
	IsLeader() (leaderAddr string, isLeader bool)
	GetCursor() uint64
	GetBaseConfig() MetaPartitionConfig
	ResponseLoadMetaPartition(p *Packet) (err error)
	PersistMetadata() (err error)
	ChangeMember(changeType raftproto.ConfChangeType, peer raftproto.Peer, context []byte) (resp interface{}, err error)
	Reset() (err error)
	UpdatePartition(req *UpdatePartitionReq, resp *UpdatePartitionResp) (err error)
	DeleteRaft() error
	IsExsitPeer(peer proto.Peer) bool
	TryToLeader(groupID uint64) error
	CanRemoveRaftMember(peer proto.Peer) error
	IsEquareCreateMetaPartitionRequst(request *proto.CreateMetaPartitionRequest) (err error)
}

OpPartition defines the interface for the partition operations.

type Packet 

type Packet struct {
	proto.Packet
}

func NewPacketToBatchDeleteExtent 

func NewPacketToBatchDeleteExtent(dp *DataPartition, exts []*proto.ExtentKey) *Packet

NewPacketToBatchDeleteExtent returns a new packet to batch delete the extent.

func NewPacketToDeleteExtent 

func NewPacketToDeleteExtent(dp *DataPartition, ext *proto.ExtentKey) *Packet

NewPacketToDeleteExtent returns a new packet to delete the extent.

func NewPacketToFreeInodeOnRaftFollower 

func NewPacketToFreeInodeOnRaftFollower(partitionID uint64, freeInodes []byte) *Packet

NewPacketToDeleteExtent returns a new packet to delete the extent.

type Part 

type Part struct {
	ID         uint16
	UploadTime time.Time
	MD5        string
	Size       uint64
	Inode      uint64
}

Part defined necessary fields for multipart part management.

func PartFromBytes 

func PartFromBytes(raw []byte) *Part

func (Part) Bytes 

func (m Part) Bytes() ([]byte, error)

func (*Part) Equal 

func (m *Part) Equal(o *Part) bool

type Parts 

type Parts []*Part

func PartsFromBytes 

func PartsFromBytes(raw []byte) Parts

func (Parts) Bytes 

func (m Parts) Bytes() ([]byte, error)

func (*Parts) Hash 

func (m *Parts) Hash(part *Part) (has bool)

func (*Parts) Insert 

func (m *Parts) Insert(part *Part, replace bool) (success bool)

Deprecated

func (Parts) Len 

func (m Parts) Len() int

func (*Parts) LoadOrStore 

func (m *Parts) LoadOrStore(part *Part) (actual *Part, stored bool)

func (*Parts) Remove 

func (m *Parts) Remove(id uint16)

func (Parts) Search 

func (m Parts) Search(id uint16) (part *Part, found bool)

type ReadDirLimitReq 

type ReadDirLimitReq = proto.ReadDirLimitRequest

Type alias.

type ReadDirLimitResp 

type ReadDirLimitResp = proto.ReadDirLimitResponse

Type alias.

type ReadDirOnlyReq 

type ReadDirOnlyReq = proto.ReadDirOnlyRequest

Type alias.

type ReadDirOnlyResp 

type ReadDirOnlyResp = proto.ReadDirOnlyResponse

Type alias.

type ReadDirReq 

type ReadDirReq = proto.ReadDirRequest

Client -> MetaNode read dir request

type ReadDirResp 

type ReadDirResp = proto.ReadDirResponse

MetaNode -> Client read dir response

type SetattrRequest 

type SetattrRequest = proto.SetAttrRequest

Client -> MetaNode

type SortedExtents 

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

func NewSortedExtents 

func NewSortedExtents() *SortedExtents

func (*SortedExtents) Append 

func (se *SortedExtents) Append(ek proto.ExtentKey) (deleteExtents []proto.ExtentKey)

func (*SortedExtents) AppendWithCheck 

func (se *SortedExtents) AppendWithCheck(ek proto.ExtentKey, discard []proto.ExtentKey) (deleteExtents []proto.ExtentKey, status uint8)

func (*SortedExtents) Clone 

func (se *SortedExtents) Clone() *SortedExtents

func (*SortedExtents) CopyExtents 

func (se *SortedExtents) CopyExtents() []proto.ExtentKey

func (*SortedExtents) Len 

func (se *SortedExtents) Len() int

func (*SortedExtents) MarshalBinary 

func (se *SortedExtents) MarshalBinary() ([]byte, error)

func (*SortedExtents) Range 

func (se *SortedExtents) Range(f func(ek proto.ExtentKey) bool)

func (*SortedExtents) Size 

func (se *SortedExtents) Size() uint64

Returns the file size

func (*SortedExtents) String 

func (se *SortedExtents) String() string

func (*SortedExtents) Truncate 

func (se *SortedExtents) Truncate(offset uint64) (deleteExtents []proto.ExtentKey)

func (*SortedExtents) UnmarshalBinary 

func (se *SortedExtents) UnmarshalBinary(data []byte) error

type UnlinkInoReq 

type UnlinkInoReq = proto.UnlinkInodeRequest

Client -> MetaNode delete Inode request struct

type UnlinkInoResp 

type UnlinkInoResp = proto.UnlinkInodeResponse

MetaNode -> Client delete Inode response

type UpdateDentryReq 

type UpdateDentryReq = proto.UpdateDentryRequest

Client -> MetaNode updateDentry request

type UpdateDentryResp 

type UpdateDentryResp = proto.UpdateDentryResponse

MetaNode -> Client updateDentry response

type UpdatePartitionReq 

type UpdatePartitionReq = proto.UpdateMetaPartitionRequest

Master -> MetaNode

type UpdatePartitionResp 

type UpdatePartitionResp = proto.UpdateMetaPartitionResponse

MetaNode -> Master

type Vol 

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

Vol defines the view of the data partition with the read/write lock.

func NewVol 

func NewVol() *Vol

NewVol returns a new volume instance.

func (*Vol) GetPartition 

func (v *Vol) GetPartition(partitionID uint64) *DataPartition

GetPartition returns the data partition based on the given partition ID.

func (*Vol) UpdatePartitions 

func (v *Vol) UpdatePartitions(partitions *DataPartitionsView)

UpdatePartitions updates the data partition.

Source Files

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