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Sometimes, we want to have the ability for the users to experiment with a new feature, but not make expose it as a general feature since it has not gone through rigorous testing. In other cases, we want to provide an escape hatch for certain edge-case scenarios that we may not want to expose in general because using the escape hatch is potentially dangerous and should only be reserved special occasions. For these purposes, Ambari has a notion of feature flags.
Feature flags can be created as an attribute of App.supports map under https://github.com/apache/ambari/blob/trunk/ambari-web/app/config.js
Those boolean flags are exposed in the Ambari Web UI via <ambari-server-protocol>://<ambari-server-host>:<ambari-server-port>/#/experimentalThe end user can go to the above URL to turn certain experimental features on.
Image Removed Make use of Feature Flags when adding new features that follow under these categories. Feature Flags has more details on this.

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