cluster

Documentation

Index

• Constants
• Variables
• type Metadata
  • func GetTestClusterMetadata(enableGlobalDomain bool, isMasterCluster bool) Metadata
  • func NewMetadata(logger log.Logger, enableGlobalDomain dynamicconfig.BoolPropertyFn, ...) Metadata

Constants

const (
	// TestCurrentClusterInitialFailoverVersion is initial failover version for current cluster
	TestCurrentClusterInitialFailoverVersion = int64(0)
	// TestAlternativeClusterInitialFailoverVersion is initial failover version for alternative cluster
	TestAlternativeClusterInitialFailoverVersion = int64(1)
	// TestFailoverVersionIncrement is failover version increment used for test
	TestFailoverVersionIncrement = int64(10)
	// TestCurrentClusterName is current cluster used for test
	TestCurrentClusterName = "active"
	// TestAlternativeClusterName is alternative cluster used for test
	TestAlternativeClusterName = "standby"
	// TestCurrentClusterFrontendAddress is the ip port address of current cluster
	TestCurrentClusterFrontendAddress = "127.0.0.1:7104"
	// TestAlternativeClusterFrontendAddress is the ip port address of alternative cluster
	TestAlternativeClusterFrontendAddress = "127.0.0.1:8104"
)

Variables

var (
	// TestAllClusterNames is the all cluster names used for test
	TestAllClusterNames = []string{TestCurrentClusterName, TestAlternativeClusterName}
	// TestAllClusterInfo is the same as above, just convenient for test mocking
	TestAllClusterInfo = map[string]config.ClusterInformation{
		TestCurrentClusterName: config.ClusterInformation{
			Enabled:                true,
			InitialFailoverVersion: TestCurrentClusterInitialFailoverVersion,
			RPCName:                common.FrontendServiceName,
			RPCAddress:             TestCurrentClusterFrontendAddress,
		},
		TestAlternativeClusterName: config.ClusterInformation{
			Enabled:                true,
			InitialFailoverVersion: TestAlternativeClusterInitialFailoverVersion,
			RPCName:                common.FrontendServiceName,
			RPCAddress:             TestAlternativeClusterFrontendAddress,
		},
	}

	// TestSingleDCAllClusterNames is the all cluster names used for test
	TestSingleDCAllClusterNames = []string{TestCurrentClusterName}
	// TestSingleDCClusterInfo is the same as above, just convenient for test mocking
	TestSingleDCClusterInfo = map[string]config.ClusterInformation{
		TestCurrentClusterName: config.ClusterInformation{
			Enabled:                true,
			InitialFailoverVersion: TestCurrentClusterInitialFailoverVersion,
			RPCName:                common.FrontendServiceName,
			RPCAddress:             TestCurrentClusterFrontendAddress,
		},
	}
)

Types

type Metadata

type Metadata interface {
	// IsGlobalDomainEnabled whether the global domain is enabled,
	// this attr should be discarded when cross DC is made public
	IsGlobalDomainEnabled() bool
	// IsMasterCluster whether current cluster is master cluster
	IsMasterCluster() bool
	// GetNextFailoverVersion return the next failover version for domain failover
	GetNextFailoverVersion(string, int64) int64
	// IsVersionFromSameCluster return true if 2 version are used for the same cluster
	IsVersionFromSameCluster(version1 int64, version2 int64) bool
	// GetMasterClusterName return the master cluster name
	GetMasterClusterName() string
	// GetCurrentClusterName return the current cluster name
	GetCurrentClusterName() string
	// GetAllClusterInfo return the all cluster name -> corresponding info
	GetAllClusterInfo() map[string]config.ClusterInformation
	// ClusterNameForFailoverVersion return the corresponding cluster name for a given failover version
	ClusterNameForFailoverVersion(failoverVersion int64) string
}

Metadata provides information about clusters

func GetTestClusterMetadata

func GetTestClusterMetadata(enableGlobalDomain bool, isMasterCluster bool) Metadata

GetTestClusterMetadata return an cluster metadata instance, which is initialized

func NewMetadata

func NewMetadata(
	logger log.Logger,
	enableGlobalDomain dynamicconfig.BoolPropertyFn,
	failoverVersionIncrement int64,
	masterClusterName string,
	currentClusterName string,
	clusterInfo map[string]config.ClusterInformation,
) Metadata

NewMetadata create a new instance of Metadata