Copyright 2017, OpenCensus Authors Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

package ocgrpc

import (
	
	
	
)
The following variables are measures are recorded by ServerHandler:
var (
	ServerReceivedMessagesPerRPC = stats.Int64("grpc.io/server/received_messages_per_rpc", "Number of messages received in each RPC. Has value 1 for non-streaming RPCs.", stats.UnitDimensionless)
	ServerReceivedBytesPerRPC    = stats.Int64("grpc.io/server/received_bytes_per_rpc", "Total bytes received across all messages per RPC.", stats.UnitBytes)
	ServerSentMessagesPerRPC     = stats.Int64("grpc.io/server/sent_messages_per_rpc", "Number of messages sent in each RPC. Has value 1 for non-streaming RPCs.", stats.UnitDimensionless)
	ServerSentBytesPerRPC        = stats.Int64("grpc.io/server/sent_bytes_per_rpc", "Total bytes sent in across all response messages per RPC.", stats.UnitBytes)
	ServerLatency                = stats.Float64("grpc.io/server/server_latency", "Time between first byte of request received to last byte of response sent, or terminal error.", stats.UnitMilliseconds)
)
TODO(acetechnologist): This is temporary and will need to be replaced by a mechanism to load these defaults from a common repository/config shared by all supported languages. Likely a serialized protobuf of these defaults.
Predefined views may be registered to collect data for the above measures. As always, you may also define your own custom views over measures collected by this package. These are declared as a convenience only; none are registered by default.
var (
	ServerReceivedBytesPerRPCView = &view.View{
		Name:        "grpc.io/server/received_bytes_per_rpc",
		Description: "Distribution of received bytes per RPC, by method.",
		Measure:     ServerReceivedBytesPerRPC,
		TagKeys:     []tag.Key{KeyServerMethod},
		Aggregation: DefaultBytesDistribution,
	}

	ServerSentBytesPerRPCView = &view.View{
		Name:        "grpc.io/server/sent_bytes_per_rpc",
		Description: "Distribution of total sent bytes per RPC, by method.",
		Measure:     ServerSentBytesPerRPC,
		TagKeys:     []tag.Key{KeyServerMethod},
		Aggregation: DefaultBytesDistribution,
	}

	ServerLatencyView = &view.View{
		Name:        "grpc.io/server/server_latency",
		Description: "Distribution of server latency in milliseconds, by method.",
		TagKeys:     []tag.Key{KeyServerMethod},
		Measure:     ServerLatency,
		Aggregation: DefaultMillisecondsDistribution,
	}

	ServerCompletedRPCsView = &view.View{
		Name:        "grpc.io/server/completed_rpcs",
		Description: "Count of RPCs by method and status.",
		TagKeys:     []tag.Key{KeyServerMethod, KeyServerStatus},
		Measure:     ServerLatency,
		Aggregation: view.Count(),
	}

	ServerReceivedMessagesPerRPCView = &view.View{
		Name:        "grpc.io/server/received_messages_per_rpc",
		Description: "Distribution of messages received count per RPC, by method.",
		TagKeys:     []tag.Key{KeyServerMethod},
		Measure:     ServerReceivedMessagesPerRPC,
		Aggregation: DefaultMessageCountDistribution,
	}

	ServerSentMessagesPerRPCView = &view.View{
		Name:        "grpc.io/server/sent_messages_per_rpc",
		Description: "Distribution of messages sent count per RPC, by method.",
		TagKeys:     []tag.Key{KeyServerMethod},
		Measure:     ServerSentMessagesPerRPC,
		Aggregation: DefaultMessageCountDistribution,
	}
)
DefaultServerViews are the default server views provided by this package.
var DefaultServerViews = []*view.View{
	ServerReceivedBytesPerRPCView,
	ServerSentBytesPerRPCView,
	ServerLatencyView,
	ServerCompletedRPCsView,