I am using a i3.xlarge worker and i3.2xlarge driver cluster. I have played around with the larger memory sizes of the cluster and still get the same issue. I don't know how to use to ODBC connector but when I was connecting before (I guess to the JDBC) using the server host name and http path in tableau, I get errors like in the picture in my cluster's driver log. And it just keeps repeating the GC Allocation Failure errors and returns a Full GC Ergonomics error at some point too. When looking at the cluster's metrics every 15 minutes it's only showing about 230 KB each time. I'm not sure which type of cluster I am using in terms of spot or on demand, but my "Instance" field in configuration is blank and through my research it looks like it would appear there. My DRT is 11.2 And I don't think it is a Unity Catalog cluster; I have not used any AWS cloud capabilities with this cluster.