Go语言采用go-redis模块对Redis进行批量操作(MULTI和EXEC) 的示例及性能

go-redis对redis执行批量操作(事务transaction)的类是Pipeliner，支持全部常用命令如set,incr,expire等等，具体示例如下.

运行该示例可在redis服务端依次接收到:

1. MULTI 
2. incr tx_pipeline_counter
3. expire tx_pipeline_counter 3600
4. EXEC

package main

import (
	"fmt"
	"github.com/go-redis/redis"
	"time"
)

func main() {
	client := redis.NewClient(&redis.Options{
		Addr:     "192.168.16.242:6379",
		Password: "",
		DB:       0,
	})

	defer client.Close()

	pipe := client.TxPipeline()

	incr := pipe.Incr("tx_pipeline_counter")
	pipe.Expire("tx_pipeline_counter", time.Hour)

	// Execute
	//
	//     MULTI
	//     INCR pipeline_counter
	//     EXPIRE pipeline_counts 3600
	//     EXEC
	//
	// using one redisdb-server roundtrip.
	_, err := pipe.Exec()
	fmt.Println(incr.Val(), err)
}

更复杂的命令如smembers的批量操作请见《Go语言采用go-redis模块对Redis进行批量执行smembers的示例》

性能比较：

多条命令采用批量处理不止节省网络时间，同时也节省redis服务端的处理时间。

package main

import (
	"fmt"
	"github.com/go-redis/redis"
	"time"
)

func main() {
	client := redis.NewClient(&redis.Options{
		Addr:     "192.168.16.242:6379",
		Password: "",
		DB:       0,
	})

	defer client.Close()

	tSaved := time.Now()

	test1(client)

	fmt.Printf("elapse: %v\n", time.Now().Sub(tSaved))

	tSaved = time.Now()

	test2(client)

	fmt.Printf("elapse: %v\n", time.Now().Sub(tSaved))
}

func test1(client *redis.Client) {
	_, _ = client.Incr("tx_pipeline_counter").Result()
	_ = client.Expire("tx_pipeline_counter", time.Hour)
}

func test2(client *redis.Client) {
	pipe := client.TxPipeline()

	_ = pipe.Incr("tx_pipeline_counter")
	pipe.Expire("tx_pipeline_counter", time.Hour)

	pipe.Exec()
}

[root@dev] go run redisPipe.go
elapse: 1.879213ms
elapse: 793.786µs

[root@dev] ping 192.168.16.242
PING 192.168.16.242 (192.168.16.242) 56(84) bytes of data.
64 bytes from 192.168.16.242: icmp_seq=1 ttl=63 time=0.436 ms
64 bytes from 192.168.16.242: icmp_seq=2 ttl=63 time=0.449 ms
64 bytes from 192.168.16.242: icmp_seq=3 ttl=63 time=0.445 ms

相关文章：

《Go语言的go-redis模块如何在启动阶段检测连接是否可创建》

《Go语言的go-redis模块连接池参数配置》