> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdc-10.2-data-optimizer/pdso-install-landing-page/pdso-install-in-hadoop-cluster/pdso-configure-data-storage-optimizer/pdso-configuration-parameters/pdso-recovery-specific-configuration-for-ambari.md).

# Recovery Specific Configuration for Ambari

Use the following parameter to configure the recovery mode for Ambari.

**CAUTION:**

Do not enable this parameter unless you have familiarized yourself with the [Maintain Data Optimizer metadata](/pdc-10.2-data-optimizer/pdso-install-landing-page/pdso-install-in-hadoop-cluster/pdso-maintain-landing-page/pdso-maintain-data-optimizer-metadata-cp.md) section and understand the implications.

| Parameter          | Description                                                                                                                                                                                                                                           |
| ------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **RECOVERY\_MODE** | Value used to determine whether recovery mode is enabled. The **RECOVERY\_MODE** parameter controls the Data Optimizer authoritative versus non-authoritative behavior. Accepable values are *Enabled* and *Disabled*. The default value is Disabled. |


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