Review and confirm configuration changes

When you change a configuration setting, use Dependent Configurations to confirm other, related configuration changes.

Change a confguration poperty. As prompted, click Show Details.

When you change a configuration property value, the Ambari Stack Advisor captures and recommends changes to all related configuration properties affected by your original change. Changing a single property, a Smart Configuration, and other actions; such as adding or deleting a service, host, or ZooKeeper Server, moving a master, or enabling high availability for a component, all require that you review and confirm related configuration changes. For example, if you increase the Minimum Container Size (Memory) setting for YARN, Dependent Configurations lists all recommended changes that you must review and (optionally) accept.

Types of changes are highlighted in the following colors:

Value Changes

Yellow

Added Properties

Green

Deleted properties

Red

To review and confirm changes to configuration properties:

1. In Dependent Configurations, for each listed property review the summary information.
2. If the change is acceptable, proceed to review the next property in the list.
3. If the change is not acceptable, click the check mark in the blue box to the right of the listed property change.
   Clicking the check mark clears the box. Changes for which you clear the box are not confirmed and will not occur.
4. After reviewing all listed changes, click OK to confirm that all marked changes occur.