server

package
v2.0.1+incompatible Latest Latest
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 Go to latest Published: Jan 22, 2019 License: Apache-2.0 Imports: 15 Imported by: 0

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Constants

This section is empty.

Variables

This section is empty.

Functions

func GetSnapshotDirName 

func GetSnapshotDirName(index uint64) string

GetSnapshotDirName returns the snapshot dir name for the snapshot captured at the specified index.

Types

type Context 

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

Context is the server context for NodeHost.

func NewContext 

func NewContext(nhConfig config.NodeHostConfig) *Context

NewContext creates and returns a new server Context object.

func (*Context) CheckNodeHostDir 

func (sc *Context) CheckNodeHostDir(did uint64, addr string)

CheckNodeHostDir checks whether NodeHost dir is owned by the current nodehost.

func (*Context) CreateNodeHostDir 

func (sc *Context) CreateNodeHostDir(deploymentID uint64) ([]string, []string)

CreateNodeHostDir creates the top level dirs used by nodehost.

func (*Context) GetClientTLSConfig 

func (sc *Context) GetClientTLSConfig(hostname string) (*tls.Config, error)

GetClientTLSConfig returns the client TLS config configured for the specified target hostname.

func (*Context) GetLogDBDirs 

func (sc *Context) GetLogDBDirs(did uint64) ([]string, []string)

GetLogDBDirs returns the directory names for LogDB

func (*Context) GetRandomSource 

func (sc *Context) GetRandomSource() random.Source

GetRandomSource returns the random source associated with the Nodehost.

func (*Context) GetServerTLSConfig 

func (sc *Context) GetServerTLSConfig() *tls.Config

GetServerTLSConfig returns the server TLS config.

func (*Context) GetSnapshotDir 

func (sc *Context) GetSnapshotDir(did uint64, clusterID uint64,
	nodeID uint64) string

GetSnapshotDir returns the snapshot directory name.

func (*Context) PrepareSnapshotDir 

func (sc *Context) PrepareSnapshotDir(deploymentID uint64,
	clusterID uint64, nodeID uint64) (string, error)

PrepareSnapshotDir creates the snapshot directory for the specified node.

func (*Context) Stop 

func (sc *Context) Stop()

Stop stops the context.

type DoubleFixedPartitioner 

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

DoubleFixedPartitioner is the IPartitioner with two fixed capacity and naive partitioning strategy.

func NewDoubleFixedPartitioner 

func NewDoubleFixedPartitioner(capacity uint64,
	workerCount uint64) *DoubleFixedPartitioner

NewDoubleFixedPartitioner creates a new DoubleFixedPartitioner instance.

func (*DoubleFixedPartitioner) GetPartitionID 

func (p *DoubleFixedPartitioner) GetPartitionID(clusterID uint64) uint64

GetPartitionID returns the partition ID for the specified raft cluster.

type FixedPartitioner 

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

FixedPartitioner is the IPartitioner with fixed capacity and naive partitioning strategy.

func NewFixedPartitioner 

func NewFixedPartitioner(capacity uint64) *FixedPartitioner

NewFixedPartitioner creates a new FixedPartitioner instance.

func (*FixedPartitioner) GetPartitionID 

func (p *FixedPartitioner) GetPartitionID(clusterID uint64) uint64

GetPartitionID returns the partition ID for the specified raft cluster.

type GetSnapshotDirFunc 

type GetSnapshotDirFunc func(clusterID uint64, nodeID uint64) string

GetSnapshotDirFunc is the function type that returns the snapshot dir for the specified raft node.

type IPartitioner 

type IPartitioner interface {
	GetPartitionID(clusterID uint64) uint64
}

IPartitioner is the interface for partitioning clusters.

type MessageQueue 

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

MessageQueue is the queue used to hold Raft messages.

func NewMessageQueue 

func NewMessageQueue(size uint64, ch bool, lazyFreeCycle uint64) *MessageQueue

NewMessageQueue creates a new MessageQueue instance.

func (*MessageQueue) Add 

func (q *MessageQueue) Add(msg raftpb.Message) (bool, bool)

Add adds the specified message to the queue.

func (*MessageQueue) AddSnapshot 

func (q *MessageQueue) AddSnapshot(msg raftpb.Message) bool

AddSnapshot adds the specified snapshot to the queue.

func (*MessageQueue) Ch 

func (q *MessageQueue) Ch() <-chan struct{}

Ch returns the notification channel.

func (*MessageQueue) Close 

func (q *MessageQueue) Close()

Close closes the queue so no further messages can be added.

func (*MessageQueue) Get 

func (q *MessageQueue) Get() []raftpb.Message

Get returns everything current in the queue.

func (*MessageQueue) Notify 

func (q *MessageQueue) Notify()

Notify notifies the notification channel listener that a new message is now available in the queue.

type Mode 

type Mode uint64

Mode is the snapshot env mode. 

const (
	// SnapshottingMode is the mode used when taking snapshotting.
	SnapshottingMode Mode = iota
	// ReceivingMode is the mode used when receiving snapshots from remote nodes.
	ReceivingMode
)

type SnapshotEnv 

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

SnapshotEnv is the struct used to manage involved directories for taking or receiving snapshots.

func NewSnapshotEnv 

func NewSnapshotEnv(f GetSnapshotDirFunc,
	clusterID uint64, nodeID uint64, index uint64,
	from uint64, mode Mode) *SnapshotEnv

NewSnapshotEnv creates and returns a new SnapshotEnv instance.

func (*SnapshotEnv) CreateFlagFile 

func (se *SnapshotEnv) CreateFlagFile(msg proto.Message) error

CreateFlagFile creates the flag file in the temp directory.

func (*SnapshotEnv) CreateTempDir 

func (se *SnapshotEnv) CreateTempDir() error

CreateTempDir creates the temp snapshot directory.

func (*SnapshotEnv) GetFilename 

func (se *SnapshotEnv) GetFilename() string

GetFilename returns the snapshot filename.

func (*SnapshotEnv) GetFilepath 

func (se *SnapshotEnv) GetFilepath() string

GetFilepath returns the snapshot file path.

func (*SnapshotEnv) GetFinalDir 

func (se *SnapshotEnv) GetFinalDir() string

GetFinalDir returns the final snapshot directory.

func (*SnapshotEnv) GetRootDir 

func (se *SnapshotEnv) GetRootDir() string

GetRootDir returns the root directory. The temp and final snapshot directories are children of the root directory.

func (*SnapshotEnv) GetTempDir 

func (se *SnapshotEnv) GetTempDir() string

GetTempDir returns the temp snapshot directory.

func (*SnapshotEnv) GetTempFilepath 

func (se *SnapshotEnv) GetTempFilepath() string

GetTempFilepath returns the temp snapshot file path.

func (*SnapshotEnv) HasFlagFile 

func (se *SnapshotEnv) HasFlagFile() bool

HasFlagFile returns a boolean flag indicating whether the flag file is available in the final directory.

func (*SnapshotEnv) IsFinalDirExists 

func (se *SnapshotEnv) IsFinalDirExists() bool

IsFinalDirExists returns a boolean value indicating whether the final directory exists.

func (*SnapshotEnv) MustRemoveTempDir 

func (se *SnapshotEnv) MustRemoveTempDir()

MustRemoveTempDir removes the temp snapshot directory and panic if there is any error.

func (*SnapshotEnv) RemoveFinalDir 

func (se *SnapshotEnv) RemoveFinalDir() error

RemoveFinalDir removes the final snapshot directory.

func (*SnapshotEnv) RemoveFlagFile 

func (se *SnapshotEnv) RemoveFlagFile() error

RemoveFlagFile removes the flag file from the final directory.

func (*SnapshotEnv) RemoveTempDir 

func (se *SnapshotEnv) RemoveTempDir() error

RemoveTempDir removes the temp snapshot directory.

func (*SnapshotEnv) RenameTempDirToFinalDir 

func (se *SnapshotEnv) RenameTempDirToFinalDir() (bool, error)

RenameTempDirToFinalDir renames the temp directory to the final directory name. It return a boolean value indicating whether the operation failed due to target directory already exists.

Source Files

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