This forum post looks pretty relevant and similar, but for Node.js… Figured I’d link to it just in case this is lower level… Getting couchbase error: Client-Side timeout exceeded for operation
Also, just to make sure it was clear in the post above… Both the database instance and the test instance in the original post are in the same security group on AWS. Shouldn’t be any firewall issues in this case (as the other post said, these nodes are “close” together).