Page History

...

• define repositories for the child Stack
• add new Services in the child Stack (not in the parent Stack)
• override command scripts of the parent Services
• override configurations of the parent Services

For example, the HDP 2.1 .1 Stack extends HDP 2.0.6 Stack so only the changes applicable to HDP 2.1.1 Stack are present in that Stack definition. This extension is defined in the metainfo.xml for HDP 2.1.1 Stack:

<metainfo>
  <versions>
    <active>true</active>
  </versions>
  <extends>2.0.6</extends>
</metainfo>

...