[Inquiry] ACL issue not returning proper error message

[hqkhan]

Inquiry

Setup

I was on AWS' MemoryDB 7.1.1 cluster. I'm using Valkey-glide to create a redis connection. Here's a snippet:

            NodeAddress nodeList = NodeAddress.builder().host(this.host).port(connectionConfig.redisPort()).build();
            GlideClusterClientConfiguration glideConfig = GlideClusterClientConfiguration
                .builder()
                .address(nodeList)
                .credentials(getIAMcredentials(awsCredentialsProvider))
                .useTLS(USE_TLS)
                .build();
            GlideClusterClient client = GlideClusterClient.createClient(glideConfig).get();

Prior to this, I was using Glide's Standalone client GlideClient. This issue popped up when I updated my codebase to use GlideClusterClient.

Issue

When I tried creating this client, I could see an error of:

client creation - Connection error: Cluster(No topology views found- ResponseError)"

The above was in my cloudwatch logs. This error stems from here. I eventually discovered that my ACL lacked permissions to run cluster slots command. Adding this to my ACL fixed the issue.

The main problem with this is that the error didn't come accompanied with NOPERM: that would point me to my ACL string. I've had other issues like missing ping capabilities in my ACL but I did get NOPERM: errors at that time.

Language

Java

Language Version

17

Engine Version

MemoryDB 7.1.1

Operating System

AL2

Additional Technical Information

No response

[Muhammad-awawdi-amazon]

Thanks for opening the issue.
We will take a look and add it to our workplan :)