infosync

package
v1.1.0-beta.0...-71d1252 Latest Latest
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 Go to latest Published: Dec 6, 2024 License: Apache-2.0 Imports: 56 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// ServerInformationPath store server information such as IP, port and so on.
	ServerInformationPath = "/tidb/server/info"
	// ServerMinStartTSPath store the server min start timestamp.
	ServerMinStartTSPath = "/tidb/server/minstartts"
	// TiFlashTableSyncProgressPath store the tiflash table replica sync progress.
	TiFlashTableSyncProgressPath = "/tiflash/table/sync"

	// ReportInterval is interval of infoSyncerKeeper reporting min startTS.
	ReportInterval = 30 * time.Second
	// TopologyInformationPath means etcd path for storing topology info.
	TopologyInformationPath = "/topology/tidb"
	// TopologySessionTTL is ttl for topology, ant it's the ETCD session's TTL in seconds.
	TopologySessionTTL = 45
	// TopologyTimeToRefresh means time to refresh etcd.
	TopologyTimeToRefresh = 30 * time.Second
	// TopologyPrometheus means address of prometheus.
	TopologyPrometheus = "/topology/prometheus"
	// TopologyTiProxy means address of TiProxy.
	TopologyTiProxy = "/topology/tiproxy"

	// TopologyTiCDC means address of TiCDC.
	TopologyTiCDC = "/topology/ticdc"
	// TablePrometheusCacheExpiry is the expiry time for prometheus address cache.
	TablePrometheusCacheExpiry = 10 * time.Second
	// RequestRetryInterval is the sleep time before next retry for http request
	RequestRetryInterval = 200 * time.Millisecond
	// SyncBundlesMaxRetry is the max retry times for sync placement bundles
	SyncBundlesMaxRetry = 3
)

Variables

View Source 
var (
	// ErrHTTPServiceError means we got a http response with a status code which is not '2xx'
	ErrHTTPServiceError = dbterror.ClassDomain.NewStd(errno.ErrHTTPServiceError)
)
View Source 
var ErrPrometheusAddrIsNotSet = dbterror.ClassDomain.NewStd(errno.ErrPrometheusAddrIsNotSet)

ErrPrometheusAddrIsNotSet is the error that Prometheus address is not set in PD and etcd

View Source 
var MockGlobalServerInfoManagerEntry = &MockGlobalServerInfoManager{
	mockServerPort: 4000,
}

MockGlobalServerInfoManagerEntry is a mock global ServerInfoManager entry.

Functions

func AddResourceGroup 

func AddResourceGroup(ctx context.Context, group *rmpb.ResourceGroup) error

AddResourceGroup is used to create one specific resource group to resource manager.

func CalculateTiFlashProgress 

func CalculateTiFlashProgress(tableID int64, replicaCount uint64, tiFlashStores map[int64]pdhttp.StoreInfo) (float64, error)

CalculateTiFlashProgress calculates TiFlash replica progress

func CheckBundle 

func CheckBundle(bundle *placement.Bundle) error

CheckBundle check that the rules don't overlap without explicit Override Exported for testing reasons. Tries to be a simpler version of PDs prepareRulesForApply + checkApplyRules. And additionally checks for key overlaps.

func CleanTiFlashProgressCache 

func CleanTiFlashProgressCache()

CleanTiFlashProgressCache clean progress cache

func CloseTiFlashManager 

func CloseTiFlashManager(ctx context.Context)

CloseTiFlashManager closes TiFlash manager.

func ConfigureTiFlashPDForPartitions 

func ConfigureTiFlashPDForPartitions(accel bool, definitions *[]model.PartitionDefinition, count uint64, locationLabels *[]string, tableID int64) error

ConfigureTiFlashPDForPartitions configures pd rule for all partition in partitioned tables.

func ConfigureTiFlashPDForTable 

func ConfigureTiFlashPDForTable(id int64, count uint64, locationLabels *[]string) error

ConfigureTiFlashPDForTable configures pd rule for unpartitioned tables.

func DeleteInternalSession 

func DeleteInternalSession(se any)

DeleteInternalSession is the entry function for delete an internal session from SessionManager.

func DeleteResourceGroup 

func DeleteResourceGroup(ctx context.Context, name string) error

DeleteResourceGroup is used to delete one specific resource group from resource manager.

func DeleteTiFlashPlacementRules 

func DeleteTiFlashPlacementRules(ctx context.Context, physicalTableIDs []int64) error

DeleteTiFlashPlacementRules is a helper function to delete TiFlash placement rules of given physical table IDs.

func DeleteTiFlashTableSyncProgress 

func DeleteTiFlashTableSyncProgress(tableInfo *model.TableInfo) error

DeleteTiFlashTableSyncProgress is used to delete the tiflash table replica sync progress.

func GetAllLabelRules 

func GetAllLabelRules(ctx context.Context) ([]*label.Rule, error)

GetAllLabelRules gets all label rules from PD.

func GetAllRuleBundles 

func GetAllRuleBundles(ctx context.Context) ([]*placement.Bundle, error)

GetAllRuleBundles is used to get all rule bundles from PD It is used to load full rules from PD while fullload infoschema.

func GetAllServerInfo 

func GetAllServerInfo(ctx context.Context) (map[string]*ServerInfo, error)

GetAllServerInfo gets all servers static information from etcd.

func GetEtcdClient 

func GetEtcdClient() *clientv3.Client

GetEtcdClient is only used for test.

func GetLabelRules 

func GetLabelRules(ctx context.Context, ruleIDs []string) (map[string]*label.Rule, error)

GetLabelRules gets the label rules according to the given IDs from PD.

func GetPDScheduleConfig 

func GetPDScheduleConfig(ctx context.Context) (map[string]any, error)

GetPDScheduleConfig gets the schedule information from pd

func GetPrometheusAddr 

func GetPrometheusAddr() (string, error)

GetPrometheusAddr gets prometheus Address

func GetResourceGroup 

func GetResourceGroup(ctx context.Context, name string) (*rmpb.ResourceGroup, error)

GetResourceGroup is used to get one specific resource group from resource manager.

func GetRuleBundle 

func GetRuleBundle(ctx context.Context, name string) (*placement.Bundle, error)

GetRuleBundle is used to get one specific rule bundle from PD.

func GetTiFlashGroupRules 

func GetTiFlashGroupRules(ctx context.Context, group string) ([]*pdhttp.Rule, error)

GetTiFlashGroupRules to get all placement rule in a certain group.

func GetTiFlashProgressFromCache 

func GetTiFlashProgressFromCache(tableID int64) (float64, bool)

GetTiFlashProgressFromCache gets tiflash replica progress from tiflashProgressCache

func GetTiFlashRegionCountFromPD 

func GetTiFlashRegionCountFromPD(ctx context.Context, tableID int64, regionCount *int) error

GetTiFlashRegionCountFromPD is a helper function calling `/stats/region`.

func GetTiFlashStoresStat 

func GetTiFlashStoresStat(ctx context.Context) (*pdhttp.StoresInfo, error)

GetTiFlashStoresStat gets the TiKV store information by accessing PD's api.

func GetTiProxyServerInfo 

func GetTiProxyServerInfo(ctx context.Context) (map[string]*TiProxyServerInfo, error)

GetTiProxyServerInfo gets all TiProxy servers information from etcd.

func ListResourceGroups 

func ListResourceGroups(ctx context.Context) ([]*rmpb.ResourceGroup, error)

ListResourceGroups is used to get all resource groups from resource manager.

func MakeNewRule 

func MakeNewRule(id int64, count uint64, locationLabels []string) pd.Rule

MakeNewRule creates a pd rule for TiFlash.

func MakeRuleID 

func MakeRuleID(id int64) string

MakeRuleID creates a rule ID for TiFlash with given TableID. This interface is exported for the module who wants to manipulate the TiFlash rule. The rule ID is in the format of "table-<TableID>-r". NOTE: PLEASE DO NOT write the rule ID manually, use this interface instead.

func ModifyResourceGroup 

func ModifyResourceGroup(ctx context.Context, group *rmpb.ResourceGroup) error

ModifyResourceGroup is used to modify one specific resource group to resource manager.

func MustGetTiFlashProgress 

func MustGetTiFlashProgress(tableID int64, replicaCount uint64, tiFlashStores *map[int64]pdhttp.StoreInfo) (float64, error)

MustGetTiFlashProgress gets tiflash replica progress from tiflashProgressCache, if cache not exist, it calculates progress from PD and TiFlash and inserts progress into cache.

func NewMockResourceManagerClient 

func NewMockResourceManagerClient() pd.ResourceManagerClient

NewMockResourceManagerClient return a mock ResourceManagerClient for test usage.

func PutLabelRule 

func PutLabelRule(ctx context.Context, rule *label.Rule) error

PutLabelRule synchronizes the label rule to PD.

func PutRuleBundles 

func PutRuleBundles(ctx context.Context, bundles []*placement.Bundle) error

PutRuleBundles is used to post specific rule bundles to PD. an "empty" bundle means delete bundle if a bundle with such ID exists.

func PutRuleBundlesWithDefaultRetry 

func PutRuleBundlesWithDefaultRetry(ctx context.Context, bundles []*placement.Bundle) (err error)

PutRuleBundlesWithDefaultRetry will retry for default times

func PutRuleBundlesWithRetry 

func PutRuleBundlesWithRetry(ctx context.Context, bundles []*placement.Bundle, maxRetry int, interval time.Duration) (err error)

PutRuleBundlesWithRetry will retry for specified times when PutRuleBundles failed

func SetEtcdClient 

func SetEtcdClient(etcdCli *clientv3.Client)

SetEtcdClient is only used for test.

func SetMockTiFlash 

func SetMockTiFlash(tiflash *MockTiFlash)

SetMockTiFlash can only be used in tests to set MockTiFlash

func SetPDHttpCliForTest 

func SetPDHttpCliForTest(cli pdhttp.Client) func()

SetPDHttpCliForTest sets the pdhttp.Client for testing. Please do not use it in the production environment.

func SetPDScheduleConfig 

func SetPDScheduleConfig(ctx context.Context, config map[string]any) error

SetPDScheduleConfig sets the schedule information for pd

func SetTiFlashGroupConfig 

func SetTiFlashGroupConfig(ctx context.Context) error

SetTiFlashGroupConfig is a helper function to set tiflash rule group config

func SetTiFlashPlacementRule 

func SetTiFlashPlacementRule(ctx context.Context, rule pdhttp.Rule) error

SetTiFlashPlacementRule is a helper function to set placement rule. It is discouraged to use SetTiFlashPlacementRule directly, use `ConfigureTiFlashPDForTable`/`ConfigureTiFlashPDForPartitions` instead.

func StoreInternalSession 

func StoreInternalSession(se any) bool

StoreInternalSession is the entry function for store an internal session to SessionManager. return whether the session is stored successfully.

func SyncTiFlashTableSchema 

func SyncTiFlashTableSchema(ctx context.Context, tableID int64) error

SyncTiFlashTableSchema syncs TiFlash table schema.

func UpdateLabelRules 

func UpdateLabelRules(ctx context.Context, patch *pdhttp.LabelRulePatch) error

UpdateLabelRules synchronizes the label rule to PD.

func UpdateServerLabel 

func UpdateServerLabel(ctx context.Context, labels map[string]string) error

UpdateServerLabel updates the server label for global info syncer.

func UpdateTiFlashProgressCache 

func UpdateTiFlashProgressCache(tableID int64, progress float64) error

UpdateTiFlashProgressCache updates tiflashProgressCache

Types

type InfoSyncer 

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

InfoSyncer stores server info to etcd when the tidb-server starts and delete when tidb-server shuts down.

func GlobalInfoSyncerInit 

func GlobalInfoSyncerInit(
	ctx context.Context,
	id string,
	serverIDGetter func() uint64,
	etcdCli, unprefixedEtcdCli *clientv3.Client,
	pdCli pd.Client, pdHTTPCli pdhttp.Client,
	codec tikv.Codec,
	skipRegisterToDashBoard bool,
) (*InfoSyncer, error)

GlobalInfoSyncerInit return a new InfoSyncer. It is exported for testing.

func (*InfoSyncer) Done 

func (is *InfoSyncer) Done() <-chan struct{}

Done returns a channel that closes when the info syncer is no longer being refreshed.

func (*InfoSyncer) GetAllTiDBTopology 

func (is *InfoSyncer) GetAllTiDBTopology(ctx context.Context) ([]*TopologyInfo, error)

GetAllTiDBTopology gets all tidb topology

func (*InfoSyncer) GetMinStartTS 

func (is *InfoSyncer) GetMinStartTS() uint64

GetMinStartTS get min start timestamp. Export for testing.

func (*InfoSyncer) GetSessionManager 

func (is *InfoSyncer) GetSessionManager() util2.SessionManager

GetSessionManager get the session manager.

func (*InfoSyncer) RemoveMinStartTS 

func (is *InfoSyncer) RemoveMinStartTS()

RemoveMinStartTS removes self server min start timestamp from etcd.

func (*InfoSyncer) RemoveServerInfo 

func (is *InfoSyncer) RemoveServerInfo()

RemoveServerInfo remove self server static information from etcd.

func (*InfoSyncer) ReportMinStartTS 

func (is *InfoSyncer) ReportMinStartTS(store kv.Storage)

ReportMinStartTS reports self server min start timestamp to ETCD.

func (*InfoSyncer) Restart 

func (is *InfoSyncer) Restart(ctx context.Context) error

Restart restart the info syncer with new session leaseID and store server info to etcd again.

func (*InfoSyncer) RestartTopology 

func (is *InfoSyncer) RestartTopology(ctx context.Context) error

RestartTopology restart the topology syncer with new session leaseID and store server info to etcd again.

func (*InfoSyncer) SetSessionManager 

func (is *InfoSyncer) SetSessionManager(manager util2.SessionManager)

SetSessionManager set the session manager for InfoSyncer.

func (*InfoSyncer) StoreServerInfo 

func (is *InfoSyncer) StoreServerInfo(ctx context.Context) error

StoreServerInfo stores self server static information to etcd.

func (*InfoSyncer) StoreTopologyInfo 

func (is *InfoSyncer) StoreTopologyInfo(ctx context.Context) error

StoreTopologyInfo stores the topology of tidb to etcd.

func (*InfoSyncer) TopologyDone 

func (is *InfoSyncer) TopologyDone() <-chan struct{}

TopologyDone returns a channel that closes when the topology syncer is no longer being refreshed.

type LabelRuleManager 

type LabelRuleManager interface {
	PutLabelRule(ctx context.Context, rule *label.Rule) error
	UpdateLabelRules(ctx context.Context, patch *pd.LabelRulePatch) error
	GetAllLabelRules(ctx context.Context) ([]*label.Rule, error)
	GetLabelRules(ctx context.Context, ruleIDs []string) (map[string]*label.Rule, error)
}

LabelRuleManager manages label rules

type MockGlobalServerInfoManager 

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

MockGlobalServerInfoManager manages serverInfos in Distributed unit tests.

func (*MockGlobalServerInfoManager) Add 

func (m *MockGlobalServerInfoManager) Add(id string, serverIDGetter func() uint64)

Add one mock ServerInfo.

func (*MockGlobalServerInfoManager) Close 

func (m *MockGlobalServerInfoManager) Close()

Close reset MockGlobalServerInfoManager.

func (*MockGlobalServerInfoManager) Delete 

func (m *MockGlobalServerInfoManager) Delete(idx int) error

Delete one mock ServerInfo by idx.

func (*MockGlobalServerInfoManager) DeleteByExecID 

func (m *MockGlobalServerInfoManager) DeleteByExecID(execID string)

DeleteByExecID delete ServerInfo by execID.

func (*MockGlobalServerInfoManager) GetAllServerInfo 

func (m *MockGlobalServerInfoManager) GetAllServerInfo() map[string]*ServerInfo

GetAllServerInfo return all serverInfo in a map.

type MockTiFlash 

type MockTiFlash struct {
	syncutil.Mutex

	StatusAddr                  string
	StatusServer                *httptest.Server
	SyncStatus                  map[int]mockTiFlashTableInfo
	StoreInfo                   map[uint64]pd.MetaStore
	GlobalTiFlashPlacementRules map[string]*pd.Rule
	PdEnabled                   bool
	TiflashDelay                time.Duration
	StartTime                   time.Time
	NotAvailable                bool
	NetworkError                bool
	// contains filtered or unexported fields
}

MockTiFlash mocks a TiFlash, with necessary Pd support.

func GetMockTiFlash 

func GetMockTiFlash() *MockTiFlash

GetMockTiFlash can only be used in tests to get MockTiFlash

func NewMockTiFlash 

func NewMockTiFlash() *MockTiFlash

NewMockTiFlash creates a MockTiFlash with a mocked TiFlash server.

func (*MockTiFlash) AddStore 

func (tiflash *MockTiFlash) AddStore(storeID uint64, address string)

AddStore is mock function for adding store info into MockTiFlash.

func (*MockTiFlash) CheckPlacementRule 

func (tiflash *MockTiFlash) CheckPlacementRule(rule pd.Rule) bool

CheckPlacementRule find if a given rule precisely matches already set rules.

func (*MockTiFlash) CleanPlacementRules 

func (tiflash *MockTiFlash) CleanPlacementRules()

CleanPlacementRules cleans all placement rules.

func (*MockTiFlash) GetPlacementRule 

func (tiflash *MockTiFlash) GetPlacementRule(ruleName string) (*pd.Rule, bool)

GetPlacementRule find a rule by name.

func (*MockTiFlash) GetRuleGroupIndex 

func (tiflash *MockTiFlash) GetRuleGroupIndex() int

GetRuleGroupIndex gets the group index of tiflash

func (*MockTiFlash) GetTableSyncStatus 

func (tiflash *MockTiFlash) GetTableSyncStatus(tableID int) (*mockTiFlashTableInfo, bool)

GetTableSyncStatus returns table sync status by given tableID.

func (*MockTiFlash) HandleDeletePlacementRule 

func (tiflash *MockTiFlash) HandleDeletePlacementRule(_ string, ruleID string)

HandleDeletePlacementRule is mock function for DeleteTiFlashPlacementRule.

func (*MockTiFlash) HandleGetGroupRules 

func (tiflash *MockTiFlash) HandleGetGroupRules(_ string) ([]*pd.Rule, error)

HandleGetGroupRules is mock function for GetTiFlashGroupRules.

func (*MockTiFlash) HandleGetPDRegionRecordStats 

func (*MockTiFlash) HandleGetPDRegionRecordStats(int64) pd.RegionStats

HandleGetPDRegionRecordStats is mock function for GetRegionCountFromPD. It currently always returns 1 Region for convenience.

func (*MockTiFlash) HandleGetStoresStat 

func (tiflash *MockTiFlash) HandleGetStoresStat() *pd.StoresInfo

HandleGetStoresStat is mock function for GetStoresStat. It returns address of our mocked TiFlash server.

func (*MockTiFlash) HandlePostAccelerateSchedule 

func (tiflash *MockTiFlash) HandlePostAccelerateSchedule(endKey string) error

HandlePostAccelerateSchedule is mock function for PostAccelerateSchedule

func (*MockTiFlash) HandleSetPlacementRule 

func (tiflash *MockTiFlash) HandleSetPlacementRule(rule *pd.Rule) error

HandleSetPlacementRule is mock function for SetTiFlashPlacementRule.

func (*MockTiFlash) HandleSetPlacementRuleBatch 

func (tiflash *MockTiFlash) HandleSetPlacementRuleBatch(rules []*pd.Rule) error

HandleSetPlacementRuleBatch is mock function for batch SetTiFlashPlacementRule.

func (*MockTiFlash) PdSwitch 

func (tiflash *MockTiFlash) PdSwitch(enabled bool)

PdSwitch controls if pd is enabled.

func (*MockTiFlash) PlacementRulesLen 

func (tiflash *MockTiFlash) PlacementRulesLen() int

PlacementRulesLen gets length of all currently set placement rules.

func (*MockTiFlash) ResetSyncStatus 

func (tiflash *MockTiFlash) ResetSyncStatus(tableID int, canAvailable bool)

ResetSyncStatus is mock function for reset sync status.

func (*MockTiFlash) SetNetworkError 

func (tiflash *MockTiFlash) SetNetworkError(e bool)

SetNetworkError sets network error state.

func (*MockTiFlash) SetRuleGroupIndex 

func (tiflash *MockTiFlash) SetRuleGroupIndex(groupIndex int)

SetRuleGroupIndex sets the group index of tiflash

type MockTiFlashError 

type MockTiFlashError struct {
	Message string
}

MockTiFlashError represents MockTiFlash error

func (*MockTiFlashError) Error 

func (me *MockTiFlashError) Error() string

type PDLabelManager 

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

PDLabelManager manages rules with pd

func (*PDLabelManager) GetAllLabelRules 

func (lm *PDLabelManager) GetAllLabelRules(ctx context.Context) ([]*label.Rule, error)

GetAllLabelRules implements GetAllLabelRules

func (*PDLabelManager) GetLabelRules 

func (lm *PDLabelManager) GetLabelRules(ctx context.Context, ruleIDs []string) (map[string]*label.Rule, error)

GetLabelRules implements GetLabelRules

func (*PDLabelManager) PutLabelRule 

func (lm *PDLabelManager) PutLabelRule(ctx context.Context, rule *label.Rule) error

PutLabelRule implements PutLabelRule

func (*PDLabelManager) UpdateLabelRules 

func (lm *PDLabelManager) UpdateLabelRules(ctx context.Context, patch *pd.LabelRulePatch) error

UpdateLabelRules implements UpdateLabelRules

type PDPlacementManager 

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

PDPlacementManager manages placement with pd

func (*PDPlacementManager) GetAllRuleBundles 

func (m *PDPlacementManager) GetAllRuleBundles(ctx context.Context) ([]*placement.Bundle, error)

GetAllRuleBundles is used to get all rule bundles from PD. It is used to load full rules from PD while fullload infoschema.

func (*PDPlacementManager) GetRuleBundle 

func (m *PDPlacementManager) GetRuleBundle(ctx context.Context, name string) (*placement.Bundle, error)

GetRuleBundle is used to get one specific rule bundle from PD.

func (*PDPlacementManager) PutRuleBundles 

func (m *PDPlacementManager) PutRuleBundles(ctx context.Context, bundles []*placement.Bundle) error

PutRuleBundles is used to post specific rule bundles to PD.

type PDScheduleManager 

type PDScheduleManager struct {
	pd.Client
}

PDScheduleManager manages schedule with pd

type PlacementManager 

type PlacementManager interface {
	// GetRuleBundle is used to get one specific rule bundle from PD.
	GetRuleBundle(ctx context.Context, name string) (*placement.Bundle, error)
	// GetAllRuleBundles is used to get all rule bundles from PD. It is used to load full rules from PD while fullload infoschema.
	GetAllRuleBundles(ctx context.Context) ([]*placement.Bundle, error)
	// PutRuleBundles is used to post specific rule bundles to PD.
	PutRuleBundles(ctx context.Context, bundles []*placement.Bundle) error
}

PlacementManager manages placement settings

type PlacementScheduleState 

type PlacementScheduleState int

PlacementScheduleState is the returned third-valued state from GetReplicationState(). For convenience, the string of PD is deserialized into an enum first. 

const (
	// PlacementScheduleStatePending corresponds to "PENDING" from PD.
	PlacementScheduleStatePending PlacementScheduleState = iota
	// PlacementScheduleStateInProgress corresponds to "INPROGRESS" from PD.
	PlacementScheduleStateInProgress
	// PlacementScheduleStateScheduled corresponds to "REPLICATED" from PD.
	PlacementScheduleStateScheduled
)

func GetReplicationState 

func GetReplicationState(ctx context.Context, startKey []byte, endKey []byte) (PlacementScheduleState, error)

GetReplicationState is used to check if regions in the given keyranges are replicated from PD.

func (PlacementScheduleState) String 

func (t PlacementScheduleState) String() string

type ScheduleManager 

type ScheduleManager interface {
	GetScheduleConfig(ctx context.Context) (map[string]any, error)
	SetScheduleConfig(ctx context.Context, config map[string]any) error
}

ScheduleManager manages schedule configs

type ServerInfo 

type ServerInfo struct {
	ServerVersionInfo
	ID             string            `json:"ddl_id"`
	IP             string            `json:"ip"`
	Port           uint              `json:"listening_port"`
	StatusPort     uint              `json:"status_port"`
	Lease          string            `json:"lease"`
	StartTimestamp int64             `json:"start_timestamp"`
	Labels         map[string]string `json:"labels"`
	// ServerID is a function, to always retrieve latest serverID from `Domain`,
	// which will be changed on occasions such as connection to PD is restored after broken.
	ServerIDGetter func() uint64 `json:"-"`

	// JSONServerID is `serverID` for json marshal/unmarshal ONLY.
	JSONServerID uint64 `json:"server_id"`
}

ServerInfo is server static information. It will not be updated when tidb-server running. So please only put static information in ServerInfo struct.

func GetServerInfo 

func GetServerInfo() (*ServerInfo, error)

GetServerInfo gets self server static information.

func GetServerInfoByID 

func GetServerInfoByID(ctx context.Context, id string) (*ServerInfo, error)

GetServerInfoByID gets specified server static information from etcd.

func (*ServerInfo) Marshal 

func (info *ServerInfo) Marshal() ([]byte, error)

Marshal `ServerInfo` into bytes.

func (*ServerInfo) Unmarshal 

func (info *ServerInfo) Unmarshal(v []byte) error

Unmarshal `ServerInfo` from bytes.

type ServerVersionInfo 

type ServerVersionInfo struct {
	Version string `json:"version"`
	GitHash string `json:"git_hash"`
}

ServerVersionInfo is the server version and git_hash.

type TiCDCInfo 

type TiCDCInfo struct {
	ID             string `json:"id"`
	Address        string `json:"address"`
	Version        string `json:"version"`
	GitHash        string `json:"git-hash"`
	DeployPath     string `json:"deploy-path"`
	StartTimestamp int64  `json:"start-timestamp"`
	ClusterID      string `json:"cluster-id"`
}

TiCDCInfo is the server info for TiCDC.

func GetTiCDCServerInfo 

func GetTiCDCServerInfo(ctx context.Context) ([]*TiCDCInfo, error)

GetTiCDCServerInfo gets all TiCDC servers information from etcd.

type TiFlashReplicaManager 

type TiFlashReplicaManager interface {
	// SetTiFlashGroupConfig sets the group index of the tiflash placement rule
	SetTiFlashGroupConfig(ctx context.Context) error
	// SetPlacementRule is a helper function to set placement rule.
	SetPlacementRule(ctx context.Context, rule *pd.Rule) error
	// SetPlacementRuleBatch is a helper function to set a batch of placement rules.
	SetPlacementRuleBatch(ctx context.Context, rules []*pd.Rule) error
	// DeletePlacementRule is to delete placement rule for certain group.
	DeletePlacementRule(ctx context.Context, group string, ruleID string) error
	// GetGroupRules to get all placement rule in a certain group.
	GetGroupRules(ctx context.Context, group string) ([]*pd.Rule, error)
	// PostAccelerateScheduleBatch sends `regions/accelerate-schedule/batch` request.
	PostAccelerateScheduleBatch(ctx context.Context, tableIDs []int64) error
	// GetRegionCountFromPD is a helper function calling `/stats/region`.
	GetRegionCountFromPD(ctx context.Context, tableID int64, regionCount *int) error
	// GetStoresStat gets the TiKV store information by accessing PD's api.
	GetStoresStat(ctx context.Context) (*pd.StoresInfo, error)
	// CalculateTiFlashProgress calculates TiFlash replica progress
	CalculateTiFlashProgress(tableID int64, replicaCount uint64, TiFlashStores map[int64]pd.StoreInfo) (float64, error)
	// UpdateTiFlashProgressCache updates tiflashProgressCache
	UpdateTiFlashProgressCache(tableID int64, progress float64)
	// GetTiFlashProgressFromCache gets tiflash replica progress from tiflashProgressCache
	GetTiFlashProgressFromCache(tableID int64) (float64, bool)
	// DeleteTiFlashProgressFromCache delete tiflash replica progress from tiflashProgressCache
	DeleteTiFlashProgressFromCache(tableID int64)
	// CleanTiFlashProgressCache clean progress cache
	CleanTiFlashProgressCache()
	// SyncTiFlashTableSchema syncs the table's schema to TiFlash.
	SyncTiFlashTableSchema(tableID int64, storesStat []pd.StoreInfo) error
	// Close is to close TiFlashReplicaManager
	Close(ctx context.Context)
}

TiFlashReplicaManager manages placement settings and replica progress for TiFlash.

type TiFlashReplicaManagerCtx 

type TiFlashReplicaManagerCtx struct {
	sync.RWMutex // protect tiflashProgressCache
	// contains filtered or unexported fields
}

TiFlashReplicaManagerCtx manages placement with pd and replica progress for TiFlash.

func (*TiFlashReplicaManagerCtx) CalculateTiFlashProgress 

func (m *TiFlashReplicaManagerCtx) CalculateTiFlashProgress(tableID int64, replicaCount uint64, tiFlashStores map[int64]pd.StoreInfo) (float64, error)

CalculateTiFlashProgress calculates TiFlash replica progress.

func (*TiFlashReplicaManagerCtx) CleanTiFlashProgressCache 

func (m *TiFlashReplicaManagerCtx) CleanTiFlashProgressCache()

CleanTiFlashProgressCache clean progress cache

func (*TiFlashReplicaManagerCtx) Close 

func (*TiFlashReplicaManagerCtx) Close(context.Context)

Close is called to close TiFlashReplicaManagerCtx.

func (*TiFlashReplicaManagerCtx) DeletePlacementRule 

func (m *TiFlashReplicaManagerCtx) DeletePlacementRule(ctx context.Context, group string, ruleID string) error

DeletePlacementRule is to delete placement rule for certain group.

func (*TiFlashReplicaManagerCtx) DeleteTiFlashProgressFromCache 

func (m *TiFlashReplicaManagerCtx) DeleteTiFlashProgressFromCache(tableID int64)

DeleteTiFlashProgressFromCache delete tiflash replica progress from tiflashProgressCache

func (*TiFlashReplicaManagerCtx) GetGroupRules 

func (m *TiFlashReplicaManagerCtx) GetGroupRules(ctx context.Context, group string) ([]*pd.Rule, error)

GetGroupRules to get all placement rule in a certain group.

func (*TiFlashReplicaManagerCtx) GetRegionCountFromPD 

func (m *TiFlashReplicaManagerCtx) GetRegionCountFromPD(ctx context.Context, tableID int64, regionCount *int) error

GetRegionCountFromPD is a helper function calling `/stats/region`.

func (*TiFlashReplicaManagerCtx) GetStoresStat 

func (m *TiFlashReplicaManagerCtx) GetStoresStat(ctx context.Context) (*pd.StoresInfo, error)

GetStoresStat gets the TiKV store information by accessing PD's api.

func (*TiFlashReplicaManagerCtx) GetTiFlashProgressFromCache 

func (m *TiFlashReplicaManagerCtx) GetTiFlashProgressFromCache(tableID int64) (float64, bool)

GetTiFlashProgressFromCache gets tiflash replica progress from tiflashProgressCache

func (*TiFlashReplicaManagerCtx) PostAccelerateScheduleBatch 

func (m *TiFlashReplicaManagerCtx) PostAccelerateScheduleBatch(ctx context.Context, tableIDs []int64) error

PostAccelerateScheduleBatch sends `regions/batch-accelerate-schedule` request.

func (*TiFlashReplicaManagerCtx) SetPlacementRule 

func (m *TiFlashReplicaManagerCtx) SetPlacementRule(ctx context.Context, rule *pd.Rule) error

SetPlacementRule is a helper function to set placement rule.

func (*TiFlashReplicaManagerCtx) SetPlacementRuleBatch 

func (m *TiFlashReplicaManagerCtx) SetPlacementRuleBatch(ctx context.Context, rules []*pd.Rule) error

SetPlacementRuleBatch is a helper function to set a batch of placement rules.

func (*TiFlashReplicaManagerCtx) SetTiFlashGroupConfig 

func (m *TiFlashReplicaManagerCtx) SetTiFlashGroupConfig(ctx context.Context) error

SetTiFlashGroupConfig sets the tiflash's rule group config

func (*TiFlashReplicaManagerCtx) SyncTiFlashTableSchema 

func (m *TiFlashReplicaManagerCtx) SyncTiFlashTableSchema(tableID int64, tiFlashStores []pd.StoreInfo) error

SyncTiFlashTableSchema syncs the table's schema to TiFlash.

func (*TiFlashReplicaManagerCtx) UpdateTiFlashProgressCache 

func (m *TiFlashReplicaManagerCtx) UpdateTiFlashProgressCache(tableID int64, progress float64)

UpdateTiFlashProgressCache updates tiflashProgressCache

type TiProxyServerInfo 

type TiProxyServerInfo struct {
	Version        string `json:"version"`
	GitHash        string `json:"git_hash"`
	IP             string `json:"ip"`
	Port           string `json:"port"`
	StatusPort     string `json:"status_port"`
	StartTimestamp int64  `json:"start_timestamp"`
}

TiProxyServerInfo is the server info for TiProxy.

type TopologyInfo 

type TopologyInfo struct {
	ServerVersionInfo
	IP             string            `json:"ip"`
	StatusPort     uint              `json:"status_port"`
	DeployPath     string            `json:"deploy_path"`
	StartTimestamp int64             `json:"start_timestamp"`
	Labels         map[string]string `json:"labels"`
}

TopologyInfo is the topology info

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