Github user dyozie commented on a diff in the pull request:
https://github.com/apache/incubator-hawq-docs/pull/36#discussion_r85015279
--- Diff: reference/cli/admin_utilities/hawqactivate.html.md.erb ---
@@ -4,6 +4,8 @@ title: hawq activate
Activates a standby master host and makes it the active master for the
HAWQ system.
+**Note:** If HAWQ was installed using Ambari, do not use `hawq activate`
to activate a standby master host. The system catalogs could become
unsynchronized if you mix Ambari and command line functions. For Ambari-managed
HAWQ clusters, always use the Ambari administration interface to activate a
standby master.
--- End diff --
Let's include a link to the ambari section here.
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