jwrookie opened a new issue #746:
URL: https://github.com/apache/rocketmq-client-go/issues/746
测试场景:
● 一个生产者,生产5条消息,默认4个队列
● 3个消费者
消费者:
`
package main
import (
"context"
"fmt"
"os"
"time"
"github.com/apache/rocketmq-client-go/v2"
"github.com/apache/rocketmq-client-go/v2/consumer"
"github.com/apache/rocketmq-client-go/v2/primitive"
)
func main() {
c, _ := rocketmq.NewPushConsumer(
consumer.WithGroupName("testGroup007"),
consumer.WithNsResolver(primitive.NewPassthroughResolver([]string{"172.17.0.6:9876"})),
consumer.WithConsumeMessageBatchMaxSize(1),
)
err := c.Subscribe("test007", consumer.MessageSelector{}, func(ctx
context.Context,
msgs ...*primitive.MessageExt) (consumer.ConsumeResult, error) {
fmt.Println(len(msgs))
for i := range msgs {
fmt.Printf("subscribe callback: %v \n", msgs[i])
}
fmt.Println("---------------------------------")
time.Sleep(time.Second * 1)
return consumer.ConsumeRetryLater, nil
})
if err != nil {
fmt.Println(err.Error())
}
// Note: start after subscribe
err = c.Start()
if err != nil {
fmt.Println(err.Error())
os.Exit(-1)
}
time.Sleep(time.Hour)
err = c.Shutdown()
if err != nil {
fmt.Printf("shutdown Consumer error: %s", err.Error())
}
}
`
结果:发现重试队列有非常多重复的数据

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