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109 lines
4.6 KiB
Go
109 lines
4.6 KiB
Go
// Copyright 2017, OpenCensus Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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package ocgrpc
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import (
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"go.opencensus.io/stats"
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"go.opencensus.io/stats/view"
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"go.opencensus.io/tag"
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)
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// The following variables are measures are recorded by ServerHandler:
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var (
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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)
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ServerReceivedBytesPerRPC = stats.Int64("grpc.io/server/received_bytes_per_rpc", "Total bytes received across all messages per RPC.", stats.UnitBytes)
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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)
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ServerSentBytesPerRPC = stats.Int64("grpc.io/server/sent_bytes_per_rpc", "Total bytes sent in across all response messages per RPC.", stats.UnitBytes)
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ServerStartedRPCs = stats.Int64("grpc.io/server/started_rpcs", "Number of started server RPCs.", stats.UnitDimensionless)
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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)
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)
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// TODO(acetechnologist): This is temporary and will need to be replaced by a
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// mechanism to load these defaults from a common repository/config shared by
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// all supported languages. Likely a serialized protobuf of these defaults.
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// Predefined views may be registered to collect data for the above measures.
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// As always, you may also define your own custom views over measures collected by this
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// package. These are declared as a convenience only; none are registered by
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// default.
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var (
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ServerReceivedBytesPerRPCView = &view.View{
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Name: "grpc.io/server/received_bytes_per_rpc",
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Description: "Distribution of received bytes per RPC, by method.",
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Measure: ServerReceivedBytesPerRPC,
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TagKeys: []tag.Key{KeyServerMethod},
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Aggregation: DefaultBytesDistribution,
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}
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ServerSentBytesPerRPCView = &view.View{
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Name: "grpc.io/server/sent_bytes_per_rpc",
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Description: "Distribution of total sent bytes per RPC, by method.",
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Measure: ServerSentBytesPerRPC,
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TagKeys: []tag.Key{KeyServerMethod},
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Aggregation: DefaultBytesDistribution,
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}
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ServerLatencyView = &view.View{
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Name: "grpc.io/server/server_latency",
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Description: "Distribution of server latency in milliseconds, by method.",
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TagKeys: []tag.Key{KeyServerMethod},
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Measure: ServerLatency,
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Aggregation: DefaultMillisecondsDistribution,
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}
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// Purposely reuses the count from `ServerLatency`, tagging
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// with method and status to result in ServerCompletedRpcs.
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ServerCompletedRPCsView = &view.View{
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Name: "grpc.io/server/completed_rpcs",
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Description: "Count of RPCs by method and status.",
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TagKeys: []tag.Key{KeyServerMethod, KeyServerStatus},
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Measure: ServerLatency,
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Aggregation: view.Count(),
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}
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ServerStartedRPCsView = &view.View{
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Measure: ServerStartedRPCs,
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Name: "grpc.io/server/started_rpcs",
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Description: "Number of started server RPCs.",
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TagKeys: []tag.Key{KeyServerMethod},
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Aggregation: view.Count(),
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}
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ServerReceivedMessagesPerRPCView = &view.View{
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Name: "grpc.io/server/received_messages_per_rpc",
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Description: "Distribution of messages received count per RPC, by method.",
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TagKeys: []tag.Key{KeyServerMethod},
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Measure: ServerReceivedMessagesPerRPC,
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Aggregation: DefaultMessageCountDistribution,
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}
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ServerSentMessagesPerRPCView = &view.View{
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Name: "grpc.io/server/sent_messages_per_rpc",
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Description: "Distribution of messages sent count per RPC, by method.",
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TagKeys: []tag.Key{KeyServerMethod},
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Measure: ServerSentMessagesPerRPC,
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Aggregation: DefaultMessageCountDistribution,
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}
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)
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// DefaultServerViews are the default server views provided by this package.
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var DefaultServerViews = []*view.View{
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ServerReceivedBytesPerRPCView,
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ServerSentBytesPerRPCView,
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ServerLatencyView,
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ServerCompletedRPCsView,
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}
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