Chapter 2. Prerequisites
Before installing Spark, make sure your cluster meets the following prerequisites.
Table 2.1. Spark Prerequisites
| Prerequisite | Description |
|---|---|
| Cluster Stack Version | HDP 2.2.4 or later stack |
| (Optional) Ambari | Version 2.0.0 or later |
| Components | Spark requires HDFS and YARN. |
![[Note]](../common/images/admon/note.png) | Note |
|---|---|
If you used the tech preview, save any configuration changes you made to the tech preview environment. Install Spark, and then update the configuration with your changes. |