Merge pull request #5348 from segmentio/retl-databricks

Updating Databricks Setup Guide with suggestions on connection type

Author: rchinn1

src/connections/reverse-etl/reverse-etl-source-setup-guides/databricks-setup.md

@@ -36,14 +36,15 @@ To set up Databricks as your Reverse ETL source:
 1. Log in to your Databricks account.
 2. Navigate to **Workspaces** and select the workspace you want to use. 
 3. Select **SQL** in the main navigation. 
-4. Select **SQL Warehouses** and select the warehouse you want to use. 
+4. Select **SQL Warehouses** and select the warehouse you want to use. Note that Segment doesn't support the `Compute` connection parameter.
 5. Go to the **Connection details** tab.
 6. In a new tab on your browser, go to the Segment app. 
 7. Navigate to **Connections > Sources > Reverse ETL**.
 8. Click **+ Add Reverse ETL source**. 
 9. Select **Databricks** and click **Add Source**. 
 10. Enter the configuration settings for your Databricks source. 
-    * Copy the Hostname, Http Path, and Port from the Databricks console from step 5. 
+    * Copy the Hostname, Http Path, and Port from the Databricks console from step 5.
+    * The Http Path in the above step should contain `/sql/1.0/warehouses`. Note that Segment doesn't support `/sql/protocolv1`.
     * To generate a **Token**, follow the steps listed in the [Databricks docs](https://docs.databricks.com/dev-tools/auth.html#pat){:target="_blank"}. Segment recommends you create a token with no expiration date by leaving the lifetime field empty when creating it. If you already have a token with an expiration date, be sure to keep track of the date and renew it on time.     
 11. Click **Test Connection** to see if the connection works. If the connection fails, make sure you have the right permissions and credentials, then try again.
 12. Click **Create Source** if the test connection is successful.