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 Go to latest Published: Nov 12, 2018 License: Apache-2.0 Imports: 19 Imported by: 0

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Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrInvalidLengthLrs = fmt.Errorf("proto: negative length found during unmarshaling")
	ErrIntOverflowLrs   = fmt.Errorf("proto: integer overflow")
)

Functions

func RegisterLoadReportingServiceServer 

func RegisterLoadReportingServiceServer(s *grpc.Server, srv LoadReportingServiceServer)

Types

type LoadReportingServiceClient 

type LoadReportingServiceClient interface {
	// Advanced API to allow for multi-dimensional load balancing by remote
	// server. For receiving LB assignments, the steps are:
	// 1, The management server is configured with per cluster/zone/load metric
	//    capacity configuration. The capacity configuration definition is
	//    outside of the scope of this document.
	// 2. Envoy issues a standard {Stream,Fetch}Endpoints request for the clusters
	//    to balance.
	//
	// Independently, Envoy will initiate a StreamLoadStats bidi stream with a
	// management server:
	// 1. Once a connection establishes, the management server publishes a
	//    LoadStatsResponse for all clusters it is interested in learning load
	//    stats about.
	// 2. For each cluster, Envoy load balances incoming traffic to upstream hosts
	//    based on per-zone weights and/or per-instance weights (if specified)
	//    based on intra-zone LbPolicy. This information comes from the above
	//    {Stream,Fetch}Endpoints.
	// 3. When upstream hosts reply, they optionally add header <define header
	//    name> with ASCII representation of EndpointLoadMetricStats.
	// 4. Envoy aggregates load reports over the period of time given to it in
	//    LoadStatsResponse.load_reporting_interval. This includes aggregation
	//    stats Envoy maintains by itself (total_requests, rpc_errors etc.) as
	//    well as load metrics from upstream hosts.
	// 5. When the timer of load_reporting_interval expires, Envoy sends new
	//    LoadStatsRequest filled with load reports for each cluster.
	// 6. The management server uses the load reports from all reported Envoys
	//    from around the world, computes global assignment and prepares traffic
	//    assignment destined for each zone Envoys are located in. Goto 2.
	StreamLoadStats(ctx context.Context, opts ...grpc.CallOption) (LoadReportingService_StreamLoadStatsClient, error)
}

func NewLoadReportingServiceClient 

func NewLoadReportingServiceClient(cc *grpc.ClientConn) LoadReportingServiceClient

type LoadReportingServiceServer 

type LoadReportingServiceServer interface {
	// Advanced API to allow for multi-dimensional load balancing by remote
	// server. For receiving LB assignments, the steps are:
	// 1, The management server is configured with per cluster/zone/load metric
	//    capacity configuration. The capacity configuration definition is
	//    outside of the scope of this document.
	// 2. Envoy issues a standard {Stream,Fetch}Endpoints request for the clusters
	//    to balance.
	//
	// Independently, Envoy will initiate a StreamLoadStats bidi stream with a
	// management server:
	// 1. Once a connection establishes, the management server publishes a
	//    LoadStatsResponse for all clusters it is interested in learning load
	//    stats about.
	// 2. For each cluster, Envoy load balances incoming traffic to upstream hosts
	//    based on per-zone weights and/or per-instance weights (if specified)
	//    based on intra-zone LbPolicy. This information comes from the above
	//    {Stream,Fetch}Endpoints.
	// 3. When upstream hosts reply, they optionally add header <define header
	//    name> with ASCII representation of EndpointLoadMetricStats.
	// 4. Envoy aggregates load reports over the period of time given to it in
	//    LoadStatsResponse.load_reporting_interval. This includes aggregation
	//    stats Envoy maintains by itself (total_requests, rpc_errors etc.) as
	//    well as load metrics from upstream hosts.
	// 5. When the timer of load_reporting_interval expires, Envoy sends new
	//    LoadStatsRequest filled with load reports for each cluster.
	// 6. The management server uses the load reports from all reported Envoys
	//    from around the world, computes global assignment and prepares traffic
	//    assignment destined for each zone Envoys are located in. Goto 2.
	StreamLoadStats(LoadReportingService_StreamLoadStatsServer) error
}

type LoadReportingService_StreamLoadStatsClient 

type LoadReportingService_StreamLoadStatsClient interface {
	Send(*LoadStatsRequest) error
	Recv() (*LoadStatsResponse, error)
	grpc.ClientStream
}

type LoadReportingService_StreamLoadStatsServer 

type LoadReportingService_StreamLoadStatsServer interface {
	Send(*LoadStatsResponse) error
	Recv() (*LoadStatsRequest, error)
	grpc.ServerStream
}

type LoadStatsRequest 

type LoadStatsRequest struct {
	// Node identifier for Envoy instance.
	Node *core.Node `protobuf:"bytes,1,opt,name=node" json:"node,omitempty"`
	// A list of load stats to report.
	ClusterStats         []*endpoint.ClusterStats `protobuf:"bytes,2,rep,name=cluster_stats,json=clusterStats" json:"cluster_stats,omitempty"`
	XXX_NoUnkeyedLiteral struct{}                 `json:"-"`
	XXX_unrecognized     []byte                   `json:"-"`
	XXX_sizecache        int32                    `json:"-"`
}

A load report Envoy sends to the management server. [#not-implemented-hide:] Not configuration. TBD how to doc proto APIs.

func (*LoadStatsRequest) Descriptor 

func (*LoadStatsRequest) Descriptor() ([]byte, []int)

func (*LoadStatsRequest) GetClusterStats 

func (m *LoadStatsRequest) GetClusterStats() []*endpoint.ClusterStats

func (*LoadStatsRequest) GetNode 

func (m *LoadStatsRequest) GetNode() *core.Node

func (*LoadStatsRequest) Marshal 

func (m *LoadStatsRequest) Marshal() (dAtA []byte, err error)

func (*LoadStatsRequest) MarshalTo 

func (m *LoadStatsRequest) MarshalTo(dAtA []byte) (int, error)

func (*LoadStatsRequest) ProtoMessage 

func (*LoadStatsRequest) ProtoMessage()

func (*LoadStatsRequest) Reset 

func (m *LoadStatsRequest) Reset()

func (*LoadStatsRequest) Size 

func (m *LoadStatsRequest) Size() (n int)

func (*LoadStatsRequest) String 

func (m *LoadStatsRequest) String() string

func (*LoadStatsRequest) Unmarshal 

func (m *LoadStatsRequest) Unmarshal(dAtA []byte) error

func (*LoadStatsRequest) Validate 

func (m *LoadStatsRequest) Validate() error

Validate checks the field values on LoadStatsRequest with the rules defined in the proto definition for this message. If any rules are violated, an error is returned.

func (*LoadStatsRequest) XXX_DiscardUnknown 

func (m *LoadStatsRequest) XXX_DiscardUnknown()

func (*LoadStatsRequest) XXX_Marshal 

func (m *LoadStatsRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*LoadStatsRequest) XXX_Merge 

func (dst *LoadStatsRequest) XXX_Merge(src proto.Message)

func (*LoadStatsRequest) XXX_Size 

func (m *LoadStatsRequest) XXX_Size() int

func (*LoadStatsRequest) XXX_Unmarshal 

func (m *LoadStatsRequest) XXX_Unmarshal(b []byte) error

type LoadStatsRequestValidationError 

type LoadStatsRequestValidationError struct {
	Field  string
	Reason string
	Cause  error
	Key    bool
}

LoadStatsRequestValidationError is the validation error returned by LoadStatsRequest.Validate if the designated constraints aren't met.

func (LoadStatsRequestValidationError) Error 

func (e LoadStatsRequestValidationError) Error() string

Error satisfies the builtin error interface

type LoadStatsResponse 

type LoadStatsResponse struct {
	// Clusters to report stats for.
	Clusters []string `protobuf:"bytes,1,rep,name=clusters" json:"clusters,omitempty"`
	// The minimum interval of time to collect stats over. This is only a minimum for two reasons:
	// 1. There may be some delay from when the timer fires until stats sampling occurs.
	// 2. For clusters that were already feature in the previous *LoadStatsResponse*, any traffic
	//    that is observed in between the corresponding previous *LoadStatsRequest* and this
	//    *LoadStatsResponse* will also be accumulated and billed to the cluster. This avoids a period
	//    of inobservability that might otherwise exists between the messages. New clusters are not
	//    subject to this consideration.
	LoadReportingInterval *types.Duration `protobuf:"bytes,2,opt,name=load_reporting_interval,json=loadReportingInterval" json:"load_reporting_interval,omitempty"`
	// Set to *true* if the management server supports endpoint granularity
	// report.
	ReportEndpointGranularity bool     `` /* 139-byte string literal not displayed */
	XXX_NoUnkeyedLiteral      struct{} `json:"-"`
	XXX_unrecognized          []byte   `json:"-"`
	XXX_sizecache             int32    `json:"-"`
}

The management server sends envoy a LoadStatsResponse with all clusters it is interested in learning load stats about. [#not-implemented-hide:] Not configuration. TBD how to doc proto APIs.

func (*LoadStatsResponse) Descriptor 

func (*LoadStatsResponse) Descriptor() ([]byte, []int)

func (*LoadStatsResponse) GetClusters 

func (m *LoadStatsResponse) GetClusters() []string

func (*LoadStatsResponse) GetLoadReportingInterval 

func (m *LoadStatsResponse) GetLoadReportingInterval() *types.Duration

func (*LoadStatsResponse) GetReportEndpointGranularity 

func (m *LoadStatsResponse) GetReportEndpointGranularity() bool

func (*LoadStatsResponse) Marshal 

func (m *LoadStatsResponse) Marshal() (dAtA []byte, err error)

func (*LoadStatsResponse) MarshalTo 

func (m *LoadStatsResponse) MarshalTo(dAtA []byte) (int, error)

func (*LoadStatsResponse) ProtoMessage 

func (*LoadStatsResponse) ProtoMessage()

func (*LoadStatsResponse) Reset 

func (m *LoadStatsResponse) Reset()

func (*LoadStatsResponse) Size 

func (m *LoadStatsResponse) Size() (n int)

func (*LoadStatsResponse) String 

func (m *LoadStatsResponse) String() string

func (*LoadStatsResponse) Unmarshal 

func (m *LoadStatsResponse) Unmarshal(dAtA []byte) error

func (*LoadStatsResponse) Validate 

func (m *LoadStatsResponse) Validate() error

Validate checks the field values on LoadStatsResponse with the rules defined in the proto definition for this message. If any rules are violated, an error is returned.

func (*LoadStatsResponse) XXX_DiscardUnknown 

func (m *LoadStatsResponse) XXX_DiscardUnknown()

func (*LoadStatsResponse) XXX_Marshal 

func (m *LoadStatsResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*LoadStatsResponse) XXX_Merge 

func (dst *LoadStatsResponse) XXX_Merge(src proto.Message)

func (*LoadStatsResponse) XXX_Size 

func (m *LoadStatsResponse) XXX_Size() int

func (*LoadStatsResponse) XXX_Unmarshal 

func (m *LoadStatsResponse) XXX_Unmarshal(b []byte) error

type LoadStatsResponseValidationError 

type LoadStatsResponseValidationError struct {
	Field  string
	Reason string
	Cause  error
	Key    bool
}

LoadStatsResponseValidationError is the validation error returned by LoadStatsResponse.Validate if the designated constraints aren't met.

func (LoadStatsResponseValidationError) Error 

func (e LoadStatsResponseValidationError) Error() string

Error satisfies the builtin error interface

Source Files

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