About InitAddress, how to know which address was reached?

[juancresc]

I'm using several servers to read from:

var client, err = rueidis.NewClient(rueidis.ClientOption{
	InitAddress: []string{

And whenever I use the get command

res, err := client.Do(ctx, client.B().Get().Key("1234").Build()).ToString()

I'm trying to figure out which of the InitAddress was used (to have metrics). My idea is to use this to replace the Ring client from go-redis.
What is a good way to do it?
How is each address get picked?
What happens if an address is down, is it removed?

[rueian]

Hi @juancresc,

rueidis follows the Redis cluster spec https://redis.io/docs/reference/cluster-spec/ and always reads from primary Redis nodes, not replicas. It is not compatible with the Ring implementation of go-redis. I would strongly recommend you to use a standard Redis cluster instead.

Following the spec, rueidis will pick a node who is responsible for the requested key slot. If the node is down or removed, rueidis will find its successor through cluster protocol.

[juancresc]

Hi!

when you say a standard Redis cluster, you mean a rueidis cluster client or another library?

[rueian]

I mean this https://redis.io/docs/management/scaling/

[juancresc]

I see. For our specific use case we use kvrocks with a master/slave arch. That's why we use a Ring client so far. You think rueidis is not suitable for this? Thanks again!

[rueian]

No, rueidis is not suitable for replacing the Ring implementation of go-redis.

On the other hand, Kvrocks supports Redis cluster spec: https://kvrocks.apache.org/docs/cluster/. I believe it will be better than client side Ring.