# User ID below minimum allowed

If you are [using the Spark engine in a secured cluster](/install/9.3-install/pentaho-configuration/tasks-to-be-performed-by-an-it-administrator/set-up-the-adaptive-execution-layer-ael.md) and an error about minimum user ID occurs, the user ID of the proxy user is below the minimum user ID required by the cluster. See [Cloudera documentation](https://www.cloudera.com/documentation/enterprise/5-5-x/topics/cm_sg_s7_prepare_cluster.html#xd_583c10bfdbd326ba--6eed2fb8-14349d04bee--76df) for details.

To resolve, change the ID of the proxy user to be higher than the minimum user ID specified for the cluster.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.pentaho.com/install/9.3-install/pentaho-configuration/tasks-to-be-performed-by-an-it-administrator/set-up-the-adaptive-execution-layer-ael/troubleshooting-ael-cp/user-id-below-minimum-allowed.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.