forked from mirror/redis
73 lines
1.4 KiB
Go
73 lines
1.4 KiB
Go
package main
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import (
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"context"
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"log"
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"sync"
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"github.com/uptrace/opentelemetry-go-extra/otelplay"
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/codes"
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"github.com/go-redis/redis/extra/redisotel/v8"
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"github.com/go-redis/redis/v8"
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)
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var tracer = otel.Tracer("redisexample")
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func main() {
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ctx := context.Background()
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shutdown := otelplay.ConfigureOpentelemetry(ctx)
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defer shutdown()
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rdb := redis.NewClient(&redis.Options{
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Addr: ":6379",
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})
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rdb.AddHook(redisotel.NewTracingHook())
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ctx, span := tracer.Start(ctx, "handleRequest")
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defer span.End()
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if err := handleRequest(ctx, rdb); err != nil {
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span.RecordError(err)
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span.SetStatus(codes.Error, err.Error())
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}
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otelplay.PrintTraceID(ctx)
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}
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func handleRequest(ctx context.Context, rdb *redis.Client) error {
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if err := rdb.Set(ctx, "First value", "value_1", 0).Err(); err != nil {
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return err
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}
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if err := rdb.Set(ctx, "Second value", "value_2", 0).Err(); err != nil {
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return err
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}
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var group sync.WaitGroup
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for i := 0; i < 20; i++ {
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group.Add(1)
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go func() {
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defer group.Done()
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val := rdb.Get(ctx, "Second value").Val()
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if val != "value_2" {
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log.Printf("%q != %q", val, "value_2")
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}
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}()
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}
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group.Wait()
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if err := rdb.Del(ctx, "First value").Err(); err != nil {
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return err
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}
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if err := rdb.Del(ctx, "Second value").Err(); err != nil {
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return err
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}
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return nil
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}
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