Connection with IAM authentication leads to "Assuming cluster is using NLB/custom domain name" Error

[Kareeno]

Driver version

^2.0.913

Redshift version

PostgreSQL 8.0.2 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.4.2 20041017 (Red Hat 3.4.2-6.fc3), Redshift 1.0.54052

Client Operating System

AWS Lambda x86_64 Architecture

Python version

Python 3.10

Table schema

Problem description

1. Expected behaviour: Connection and querying from Redshift Cluster
2. Actual behaviour: Querying Succeeds but an Error is logged.
3. Error message/stack trace: [ERROR] 2023-08-10T07:58:00.747Z adb51ef0-a89c-49c0-8338-ec38fb684189 User provided cluster_identifier. Assuming cluster is using NLB/custom domain name. Using cluster_identifier
4. Any other details that can be helpful: The error is related to custom domain name, however a custom domain name has NOT been configured for the Redshift cluster.

Python Driver trace logs

Reproduction code

conn = redshift_connector.connect(
            cluster_identifier=REDSHIFT_CLUSTER_IDENTIFIER,
            database=REDSHIFT_DATABASE,
            db_user=REDSHIFT_DB_USER,
            iam=True,
            db_groups=[REDSHIFT_DB_GROUP],
            auto_create=True,
        )
cursor = conn.cursor()
res = cursor.execute('SELECT 1;')

[Brooke-white]

@Kareeno, are you seeing issue connecting? looks like this is incorrectly being logged with the level error and should be using debug instead.

[Kareeno]

Hi @Brooke-white, indeed there is no issue actually connecting, only the logging of the error.

[Brooke-white]

Thanks, @Kareeno , understood. Apologies for the inconvenience. We will address this is our next release.

[Kareeno]

Thanks!!

[Brooke-white]

Fixed in 2.0.914