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73 lines
2.5 KiB
Go
73 lines
2.5 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. 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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package tracer
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import (
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"context"
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"github.com/cockroachdb/errors"
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/exporters/jaeger"
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"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
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stdout "go.opentelemetry.io/otel/exporters/stdout/stdouttrace"
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"go.opentelemetry.io/otel/propagation"
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"go.opentelemetry.io/otel/sdk/resource"
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sdk "go.opentelemetry.io/otel/sdk/trace"
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semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/pkg/log"
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"github.com/milvus-io/milvus/pkg/util/paramtable"
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)
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func Init() {
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params := paramtable.Get()
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var exp sdk.SpanExporter
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var err error
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switch params.TraceCfg.Exporter.GetValue() {
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case "jaeger":
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exp, err = jaeger.New(jaeger.WithCollectorEndpoint(
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jaeger.WithEndpoint(params.TraceCfg.JaegerURL.GetValue())))
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case "otlp":
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exp, err = otlptracegrpc.New(context.Background(), otlptracegrpc.WithEndpoint(params.TraceCfg.OtlpEndpoint.GetValue()))
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case "stdout":
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exp, err = stdout.New()
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default:
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err = errors.New("Empty Trace")
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}
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if err != nil {
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log.Warn("Init tracer faield", zap.Error(err))
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return
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}
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tp := sdk.NewTracerProvider(
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sdk.WithBatcher(exp),
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sdk.WithResource(resource.NewWithAttributes(
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semconv.SchemaURL,
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semconv.ServiceNameKey.String(paramtable.GetRole()),
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attribute.Int64("NodeID", paramtable.GetNodeID()),
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)),
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sdk.WithSampler(sdk.ParentBased(
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sdk.TraceIDRatioBased(params.TraceCfg.SampleFraction.GetAsFloat()),
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)),
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)
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otel.SetTracerProvider(tp)
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otel.SetTextMapPropagator(propagation.NewCompositeTextMapPropagator(propagation.TraceContext{}, propagation.Baggage{}))
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log.Info("Init tracer finished", zap.String("Exporter", params.TraceCfg.Exporter.GetValue()))
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}
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