golang redis client connection status

Question

After creting a new Redis client, is there a way to check the status of the connection?

As a way to ensure that the Sentinel is in a healthy state, a status check after instantiation would be ideal.

Some client libraries offer a `Ping()` method that executes Redis' `PING` command (https://redis.io/commands/ping) to check the status of the connection: `err := redisClient.Ping(ctx)` — GGP, Aug 05 '22 at 22:20
Thank you @GastónPalomeque. This is exactly what I was looking for. If you submit an answer, I will mark it as solved. — TruBlu, Aug 06 '22 at 15:29

score 2 · Accepted Answer · answered Aug 11 '22 at 01:35

2

Some client libraries offer a Ping() method that executes Redis' PING command to check the status of the connection:

redisClient := redis.NewClient(...)
if err := redisClient.Ping(ctx); err != nil {
    log.Fatal(err)
}

answered Aug 11 '22 at 01:35

GGP

314
5
6

1

The error is ping: PONG in which is should be the state of OK. am I wrong about that? – temple Dec 08 '22 at 21:10
I dont understand how this can be the correct answer as Ping() returns PONG and thus the error wont be nil either way? – Philip Mar 21 '23 at 12:49
2

The naming of the return var here is confusing. `err` is actually a `StatusCmd`. In order to check the error you'd call `redisClient.Ping(ctx).Err()` – jmoney Apr 28 '23 at 19:28

score 0 · Answer 2 · answered Aug 06 '22 at 01:42

0

I think it depends on the client you use.

For example, the radix client (https://github.com/mediocregopher/radix) support a function to monitor for checking the connection (error, reused, created and so on.)

answered Aug 06 '22 at 01:42

nimdrak

72
8

score 0 · Answer 3 · answered Mar 15 '23 at 07:16

0

redisClient := redis.NewClient(...)
if err := redisClient.Ping(ctx).Err(); err != nil {
    panic(err)
}

answered Mar 15 '23 at 07:16

beer

42
5

score 0 · Answer 4 · answered Apr 27 '23 at 14:11

If you use go-redis client for connecting to redis then you can try the following to check if redis is connected properly.

    client := redis.NewClient(&redis.Options{
        Addr:     "localhost:6379",
        Password: "",
        DB:       0,
    })
    if pong := client.Ping(ctx); pong.String() != "ping: PONG" {
        log.Println("-------------Error connection redis ----------:", pong)
    }

golang redis client connection status

4 Answers4