proto

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 Go to latest Published: Apr 14, 2022 License: Apache-2.0 Imports: 18 Imported by: 1

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Index

Constants

View Source 
const (
	INVALID_GEN_NUMBER = 0
)

Variables

This section is empty.

Functions

This section is empty.

Types

type GossipDelegate 

type GossipDelegate struct {
	// GossipstoreImpl implements the GossipStoreInterface
	GossipStoreImpl
	// contains filtered or unexported fields
}

func (*GossipDelegate) GetBroadcasts 

func (gd *GossipDelegate) GetBroadcasts(overhead, limit int) [][]byte

GetBroadcasts is called when user data messages can be broadcast. It can return a list of buffers to send. Each buffer should assume an overhead as provided with a limit on the total byte size allowed. The total byte size of the resulting data to send must not exceed the limit. Care should be taken that this method does not block, since doing so would block the entire UDP packet receive loop. Note: Currently, we do not use broadcasts and hence this function does nothing

func (*GossipDelegate) InitCurrentState 

func (gd *GossipDelegate) InitCurrentState(
	clusterSize uint,
	quorumProvider state.Quorum,
)

func (*GossipDelegate) InitGossipDelegate 

func (gd *GossipDelegate) InitGossipDelegate(
	genNumber uint64,
	selfNodeId types.NodeId,
	gossipVersion string,
	quorumTimeout time.Duration,
	clusterId string,
	selfClusterDomain string,
	ping func(types.NodeId, string) (time.Duration, error),
)

func (*GossipDelegate) LocalState 

func (gd *GossipDelegate) LocalState(join bool) []byte

LocalState is used for a TCP Push/Pull. This is sent to the remote side in addition to the membership information. Any data can be sent here. See MergeRemoteState as well. The `join` boolean indicates this is for a join instead of a push/pull.

func (*GossipDelegate) MergeRemoteState 

func (gd *GossipDelegate) MergeRemoteState(buf []byte, join bool)

MergeRemoteState is invoked after a TCP Push/Pull. This is the state received from the remote side and is the result of the remote side's LocalState call. The 'join' boolean indicates this is for a join instead of a push/pull.

func (*GossipDelegate) NodeMeta 

func (gd *GossipDelegate) NodeMeta(limit int) []byte

NodeMeta is used to retrieve meta-data about the current node when broadcasting an alive message. It's length is limited to the given byte size. This metadata is available in the Node structure.

func (*GossipDelegate) NotifyAlive 

func (gd *GossipDelegate) NotifyAlive(node *memberlist.Node) error

AliveDelegate is used to involve a client in processing a node "alive" message. TODO/Future-use : Check if we want to add this node in memberlist

func (*GossipDelegate) NotifyJoin 

func (gd *GossipDelegate) NotifyJoin(node *memberlist.Node)

NotifyJoin is invoked when a node is detected to have joined. The Node argument must not be modified.

func (*GossipDelegate) NotifyLeave 

func (gd *GossipDelegate) NotifyLeave(node *memberlist.Node)

NotifyLeave is invoked when a node is detected to have left. The Node argument must not be modified.

func (*GossipDelegate) NotifyMerge 

func (gd *GossipDelegate) NotifyMerge(peers []*memberlist.Node) error

func (*GossipDelegate) NotifyMsg 

func (gd *GossipDelegate) NotifyMsg(data []byte)

NotifyMsg is called when a user-data message is received. Care should be taken that this method does not block, since doing so would block the entire UDP packet receive loop. Additionally, the byte slice may be modified after the call returns, so it should be copied if needed. Note: Currently, we do not use broadcasts and hence this function does nothing

func (*GossipDelegate) NotifyUpdate 

func (gd *GossipDelegate) NotifyUpdate(node *memberlist.Node)

NotifyUpdate is invoked when a node is detected to have updated, usually involving the meta data. The Node argument must not be modified. Note: Currently we do not use memberlists Node meta or modify it. Probably future use ?

type GossipNode 

type GossipNode struct {
	Id types.NodeId
	Ip string
}

type GossipNodeList 

type GossipNodeList []GossipNode

func (GossipNodeList) Len 

func (nodes GossipNodeList) Len() int

func (GossipNodeList) Less 

func (nodes GossipNodeList) Less(i, j int) bool

func (GossipNodeList) Swap 

func (nodes GossipNodeList) Swap(i, j int)

type GossipStoreImpl 

type GossipStoreImpl struct {
	sync.Mutex

	GenNumber uint64

	GossipVersion string
	ClusterId     string
	// contains filtered or unexported fields
}

func NewGossipStore 

func NewGossipStore(id types.NodeId, version, clusterId, selfClusterDomain string) *GossipStoreImpl

func (*GossipStoreImpl) AddNode 

func (s *GossipStoreImpl) AddNode(
	id types.NodeId,
	status types.NodeStatus,
	quorumMember bool,
	failureDomain string,
)

func (*GossipStoreImpl) GetClusterId 

func (s *GossipStoreImpl) GetClusterId() string

func (*GossipStoreImpl) GetGossipVersion 

func (s *GossipStoreImpl) GetGossipVersion() string

func (*GossipStoreImpl) GetLocalNodeInfo 

func (s *GossipStoreImpl) GetLocalNodeInfo(id types.NodeId) (types.NodeInfo, error)

func (*GossipStoreImpl) GetLocalState 

func (s *GossipStoreImpl) GetLocalState() types.NodeInfoMap

func (*GossipStoreImpl) GetLocalStateInBytes 

func (s *GossipStoreImpl) GetLocalStateInBytes() ([]byte, error)

func (*GossipStoreImpl) GetLostQuorumTs 

func (s *GossipStoreImpl) GetLostQuorumTs() time.Time

func (*GossipStoreImpl) GetSelfStatus 

func (s *GossipStoreImpl) GetSelfStatus() types.NodeStatus

func (*GossipStoreImpl) GetStoreKeyValue 

func (s *GossipStoreImpl) GetStoreKeyValue(key types.StoreKey) types.NodeValueMap

func (*GossipStoreImpl) GetStoreKeys 

func (s *GossipStoreImpl) GetStoreKeys() []types.StoreKey

func (*GossipStoreImpl) InitStore 

func (s *GossipStoreImpl) InitStore(
	id types.NodeId,
	version string,
	status types.NodeStatus,
	clusterId string,
	selfClusterDomain string,
)

func (*GossipStoreImpl) MetaInfo 

func (s *GossipStoreImpl) MetaInfo() types.NodeMetaInfo

func (*GossipStoreImpl) NodeId 

func (s *GossipStoreImpl) NodeId() types.NodeId

func (*GossipStoreImpl) RemoveNode 

func (s *GossipStoreImpl) RemoveNode(id types.NodeId) error

func (*GossipStoreImpl) Update 

func (s *GossipStoreImpl) Update(diff types.NodeInfoMap)

func (*GossipStoreImpl) UpdateLostQuorumTs 

func (s *GossipStoreImpl) UpdateLostQuorumTs()

func (*GossipStoreImpl) UpdateNodeStatus 

func (s *GossipStoreImpl) UpdateNodeStatus(nodeId types.NodeId, status types.NodeStatus) error

func (*GossipStoreImpl) UpdateSelf 

func (s *GossipStoreImpl) UpdateSelf(key types.StoreKey, val interface{})

func (*GossipStoreImpl) UpdateSelfStatus 

func (s *GossipStoreImpl) UpdateSelfStatus(status types.NodeStatus)

type GossiperImpl 

type GossiperImpl struct {
	// GossipDelegate implements the GossipStoreInterface
	// as well as the memberlist Delegates
	GossipDelegate
	// contains filtered or unexported fields
}

Implements the UnreliableBroadcast interface

func (*GossiperImpl) ExternalNodeLeave 

func (g *GossiperImpl) ExternalNodeLeave(nodeId types.NodeId) types.NodeId

func (*GossiperImpl) GetNodes 

func (g *GossiperImpl) GetNodes() []string

func (*GossiperImpl) GossipInterval 

func (g *GossiperImpl) GossipInterval() time.Duration

func (*GossiperImpl) Init 

func (g *GossiperImpl) Init(
	ipPort string,
	selfNodeId types.NodeId,
	genNumber uint64,
	gossipIntervals types.GossipIntervals,
	gossipVersion string,
	clusterId string,
	selfClusterDomain string,
)

func (*GossiperImpl) Ping 

func (g *GossiperImpl) Ping(peerNode types.NodeId, addr string) (time.Duration, error)

func (*GossiperImpl) Start 

func (g *GossiperImpl) Start(config types.GossipStartConfiguration) error

func (*GossiperImpl) Stop 

func (g *GossiperImpl) Stop(leaveTimeout time.Duration) error

func (*GossiperImpl) UpdateCluster 

func (g *GossiperImpl) UpdateCluster(peers map[types.NodeId]types.NodeUpdate)

func (*GossiperImpl) UpdateClusterDomainsActiveMap 

func (g *GossiperImpl) UpdateClusterDomainsActiveMap(activeMap types.ClusterDomainsActiveMap) error

func (*GossiperImpl) UpdateSelfClusterDomain 

func (g *GossiperImpl) UpdateSelfClusterDomain(selfClusterDomain string)

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