leader

package
v1.18.0 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Mar 4, 2024 License: Apache-2.0, BSD-2-Clause, BSD-3-Clause, + 3 more Imports: 28 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// PluginName plugin name
	PluginName = "heartbeatLeader"
	// Servers key to manage hb servers
	Servers = "servers"
	// CountSep separator to divide server and count
	Split = "|"
)

Variables

View Source 
var (
	ErrorRedirectOnlyOnce    = errors.New("redirect request only once")
	ErrorLeaderNotInitialize = errors.New("leader checker uninitialize")
)
View Source 
var (
	NewLocalPeerFunc  = newLocalPeer
	NewRemotePeerFunc = newRemotePeer
	ConnectPeer       = doConnect

	CreateBeatClientFunc = createBeatClient
)
View Source 
var (
	// DefaultSoltNum default soltNum of LocalBeatRecordCache
	DefaultSoltNum = int32(runtime.GOMAXPROCS(0) * 16)
)
View Source 
var (
	ErrorLeaderNotAlive = errors.New("leader not alive")
)

Functions

This section is empty.

Types

type BeatRecordCache 

type BeatRecordCache interface {
	// Get get records
	Get(keys ...string) (map[string]*ReadBeatRecord, error)
	// Put put records
	Put(records ...WriteBeatRecord) error
	// Del del records
	Del(keys ...string) error
	// Clean .
	Clean()
	// Snapshot
	Snapshot() map[string]*ReadBeatRecord
	// Ping
	Ping() error
}

BeatRecordCache Heartbeat data cache

type Config 

type Config struct {
	SoltNum   int32 `json:"soltNum"`
	StreamNum int32 `json:"streamNum"`
	// contains filtered or unexported fields
}

type ConnectFuncContextKey added in v1.18.0 

type ConnectFuncContextKey struct{}

仅支持测试场景塞入即可

type ConnectPeerFunc added in v1.18.0 

type ConnectPeerFunc func(*RemotePeer) error

type HashFunction 

type HashFunction func(string) int

HashFunction hash function to caul record id need locate in SegmentMap

type LeaderHealthChecker 

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

LeaderHealthChecker Leader~Follower 节点心跳健康检查 1. 监听 LeaderChangeEvent 事件， 2. LeaderHealthChecker 启动时先根据 store 层的 LeaderElection 选举能力选出一个 Leader 3. Leader 和 Follower 之间建立 gRPC 长连接 4. LeaderHealthChecker 在处理 Report/Query/Check/Delete 先判断自己是否为 Leader

  • Leader 节点 a. 心跳数据的读写直接写本地 map 内存
  • 非 Leader 节点 a. 心跳写请求通过 gRPC 长连接直接发给 Leader 节点 b. 心跳读请求通过 gRPC 长连接直接发给 Leader 节点，Leader 节点返回心跳时间戳信息

func (*LeaderHealthChecker) BatchQuery added in v1.18.0 

func (c *LeaderHealthChecker) BatchQuery(ctx context.Context,
	request *plugin.BatchQueryRequest) (*plugin.BatchQueryResponse, error)

func (*LeaderHealthChecker) Check 

func (c *LeaderHealthChecker) Check(request *plugin.CheckRequest) (*plugin.CheckResponse, error)

Check process the instance check

func (*LeaderHealthChecker) DebugHandlers 

func (c *LeaderHealthChecker) DebugHandlers() []model.DebugHandler

func (*LeaderHealthChecker) Delete 

func (c *LeaderHealthChecker) Delete(ctx context.Context, key string) error

Delete delete record by key

func (*LeaderHealthChecker) Destroy 

func (c *LeaderHealthChecker) Destroy() error

Destroy .

func (*LeaderHealthChecker) Initialize 

func (c *LeaderHealthChecker) Initialize(entry *plugin.ConfigEntry) error

Initialize .

func (*LeaderHealthChecker) LeaderChangeTimeSec 

func (c *LeaderHealthChecker) LeaderChangeTimeSec() int64

func (*LeaderHealthChecker) Name 

func (c *LeaderHealthChecker) Name() string

Name .

func (*LeaderHealthChecker) OnEvent 

func (c *LeaderHealthChecker) OnEvent(ctx context.Context, i interface{}) error

OnEvent event trigger

func (*LeaderHealthChecker) PreProcess 

func (c *LeaderHealthChecker) PreProcess(ctx context.Context, value any) any

PreProcess do preprocess logic for event

func (*LeaderHealthChecker) Query 

func (c *LeaderHealthChecker) Query(ctx context.Context, request *plugin.QueryRequest) (*plugin.QueryResponse, error)

Query queries the heartbeat time

func (*LeaderHealthChecker) Report 

func (c *LeaderHealthChecker) Report(ctx context.Context, request *plugin.ReportRequest) error

Report process heartbeat info report

func (*LeaderHealthChecker) Suspend 

func (c *LeaderHealthChecker) Suspend()

Suspend checker for an entire expired interval

func (*LeaderHealthChecker) SuspendTimeSec 

func (c *LeaderHealthChecker) SuspendTimeSec() int64

SuspendTimeSec get suspend time in seconds

func (*LeaderHealthChecker) Type 

func (c *LeaderHealthChecker) Type() plugin.HealthCheckType

Type for health check plugin, only one same type plugin is allowed

type LocalBeatRecordCache 

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

LocalBeatRecordCache

func (*LocalBeatRecordCache) Clean 

func (lc *LocalBeatRecordCache) Clean()

func (*LocalBeatRecordCache) Del 

func (lc *LocalBeatRecordCache) Del(keys ...string) error

func (*LocalBeatRecordCache) Get 

func (lc *LocalBeatRecordCache) Get(keys ...string) (map[string]*ReadBeatRecord, error)

func (*LocalBeatRecordCache) Ping added in v1.18.0 

func (lc *LocalBeatRecordCache) Ping() error

func (*LocalBeatRecordCache) Put 

func (lc *LocalBeatRecordCache) Put(records ...WriteBeatRecord) error

func (*LocalBeatRecordCache) Snapshot 

func (lc *LocalBeatRecordCache) Snapshot() map[string]*ReadBeatRecord

type LocalPeer 

type LocalPeer struct {

	// Cache data storage
	Cache BeatRecordCache
	// contains filtered or unexported fields
}

LocalPeer Heartbeat data storage node

func (*LocalPeer) Close 

func (p *LocalPeer) Close() error

Close close peer life

func (*LocalPeer) Host 

func (p *LocalPeer) Host() string

Get get records

func (*LocalPeer) Initialize 

func (p *LocalPeer) Initialize(conf Config)

func (*LocalPeer) IsAlive added in v1.18.0 

func (p *LocalPeer) IsAlive() bool

func (*LocalPeer) Serve 

func (p *LocalPeer) Serve(ctx context.Context, checker *LeaderHealthChecker,
	listenIP string, listenPort uint32) error

func (*LocalPeer) Storage added in v1.17.1 

func (p *LocalPeer) Storage() BeatRecordCache

type Peer 

type Peer interface {
	// Initialize .
	Initialize(conf Config)
	// Serve .
	Serve(ctx context.Context, checker *LeaderHealthChecker, listenIP string, listenPort uint32) error
	// Close .
	Close() error
	// Host .
	Host() string
	// Storage .
	Storage() BeatRecordCache
	// IsAlive .
	IsAlive() bool
}

Peer peer

type ReadBeatRecord 

type ReadBeatRecord struct {
	Record RecordValue
	Exist  bool
}

ReadBeatRecord Heartbeat records read results

type RecordDelter 

type RecordDelter func(req *apiservice.DelHeartbeatsRequest) error

RecordDelter beat record delter

type RecordGetter 

type RecordGetter func(req *apiservice.GetHeartbeatsRequest) (*apiservice.GetHeartbeatsResponse, error)

RecordGetter beat record getter

type RecordSaver 

type RecordSaver func(req *apiservice.HeartbeatsRequest) error

RecordSaver beat record saver

type RecordValue 

type RecordValue struct {
	Server     string
	CurTimeSec int64
	Count      int64
}

RecordValue heatrtbeat record value

func (RecordValue) String 

func (r RecordValue) String() string

type RemoteBeatRecordCache 

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

RemoteBeatRecordCache

func (*RemoteBeatRecordCache) Clean 

func (lc *RemoteBeatRecordCache) Clean()

func (*RemoteBeatRecordCache) Del 

func (rc *RemoteBeatRecordCache) Del(key ...string) error

func (*RemoteBeatRecordCache) Get 

func (rc *RemoteBeatRecordCache) Get(keys ...string) (map[string]*ReadBeatRecord, error)

func (*RemoteBeatRecordCache) Ping added in v1.18.0 

func (rc *RemoteBeatRecordCache) Ping() error

func (*RemoteBeatRecordCache) Put 

func (rc *RemoteBeatRecordCache) Put(records ...WriteBeatRecord) error

func (*RemoteBeatRecordCache) Snapshot 

func (lc *RemoteBeatRecordCache) Snapshot() map[string]*ReadBeatRecord

type RemotePeer 

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

LocalPeer Heartbeat data storage node

func (*RemotePeer) Close 

func (p *RemotePeer) Close() error

Close close peer life

func (*RemotePeer) DelFunc 

func (p *RemotePeer) DelFunc(req *apiservice.DelHeartbeatsRequest) error

func (*RemotePeer) GetFunc 

func (p *RemotePeer) GetFunc(req *apiservice.GetHeartbeatsRequest) (*apiservice.GetHeartbeatsResponse, error)

func (*RemotePeer) Host 

func (p *RemotePeer) Host() string

func (*RemotePeer) Initialize 

func (p *RemotePeer) Initialize(conf Config)

func (*RemotePeer) IsAlive added in v1.18.0 

func (p *RemotePeer) IsAlive() bool

func (*RemotePeer) Ping added in v1.18.0 

func (p *RemotePeer) Ping() error

func (*RemotePeer) PutFunc 

func (p *RemotePeer) PutFunc(req *apiservice.HeartbeatsRequest) error

func (*RemotePeer) Serve 

func (p *RemotePeer) Serve(ctx context.Context, checker *LeaderHealthChecker,
	listenIP string, listenPort uint32) error

func (*RemotePeer) Storage added in v1.17.1 

func (p *RemotePeer) Storage() BeatRecordCache

type WriteBeatRecord 

type WriteBeatRecord struct {
	Record RecordValue
	Key    string
}

WriteBeatRecord Heartbeat record operation results

Source Files

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