public boolean getPostProcessExistingUsers() {
    return postProcessExistingUsers;
  }
Gets whether to (re)exectue the post user creation hook on previously existing users
(if the post user creation hook feature has been enabled), on not.

@return true, to process existing users; false, otherwise
ambari-server/src/main/java/org/apache/ambari/server/controller/LdapSyncRequest.java