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https://github.com/hanzoai/metrics.git
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NikolayandGitHub
590afe3070
Add build tag `disable_grpc_modules` for vmbackup, vmrestore and vmbackupmanager. Binary size increases only for 3MB with it. It's acceptable trade-off for security and feature updates. Related issue: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8008
85 lines
3.1 KiB
Go
85 lines
3.1 KiB
Go
/*
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* Copyright 2024 gRPC 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 opentelemetry
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import (
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"context"
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"log"
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"strings"
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"go.opentelemetry.io/otel/trace"
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"google.golang.org/grpc"
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"google.golang.org/grpc/stats"
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otelinternaltracing "google.golang.org/grpc/stats/opentelemetry/internal/tracing"
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)
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type serverTracingHandler struct {
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options Options
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}
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func (h *serverTracingHandler) initializeTraces() {
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if h.options.TraceOptions.TracerProvider == nil {
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log.Printf("TracerProvider is not provided in server TraceOptions")
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return
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}
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}
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// TagRPC implements per RPC attempt context management for traces.
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func (h *serverTracingHandler) TagRPC(ctx context.Context, _ *stats.RPCTagInfo) context.Context {
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ctx, ai := getOrCreateRPCAttemptInfo(ctx)
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ctx, ai = h.traceTagRPC(ctx, ai)
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return setRPCInfo(ctx, &rpcInfo{ai: ai})
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}
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// traceTagRPC populates context with new span data using the TextMapPropagator
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// supplied in trace options and internal itracing.Carrier. It creates a new
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// incoming carrier which extracts an existing span context (if present) by
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// deserializing from provided context. If valid span context is extracted, it
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// is set as parent of the new span otherwise new span remains the root span.
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// If TextMapPropagator is not provided in the trace options, it returns context
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// as is.
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func (h *serverTracingHandler) traceTagRPC(ctx context.Context, ai *attemptInfo) (context.Context, *attemptInfo) {
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mn := "Recv." + strings.Replace(ai.method, "/", ".", -1)
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var span trace.Span
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tracer := h.options.TraceOptions.TracerProvider.Tracer(tracerName, trace.WithInstrumentationVersion(grpc.Version))
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ctx = h.options.TraceOptions.TextMapPropagator.Extract(ctx, otelinternaltracing.NewIncomingCarrier(ctx))
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// If the context.Context provided in `ctx` to tracer.Start(), contains a
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// span then the newly-created Span will be a child of that span,
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// otherwise it will be a root span.
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ctx, span = tracer.Start(ctx, mn, trace.WithSpanKind(trace.SpanKindServer))
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ai.traceSpan = span
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return ctx, ai
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}
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// HandleRPC handles per RPC tracing implementation.
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func (h *serverTracingHandler) HandleRPC(ctx context.Context, rs stats.RPCStats) {
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ri := getRPCInfo(ctx)
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if ri == nil {
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logger.Error("ctx passed into server side tracing handler trace event handling has no server call data present")
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return
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}
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populateSpan(rs, ri.ai)
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}
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// TagConn exists to satisfy stats.Handler for tracing.
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func (h *serverTracingHandler) TagConn(ctx context.Context, _ *stats.ConnTagInfo) context.Context {
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return ctx
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}
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// HandleConn exists to satisfy stats.Handler for tracing.
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func (h *serverTracingHandler) HandleConn(context.Context, stats.ConnStats) {}
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