I tried modifying the 'storm.scheduler' setting in /etc/storm/conf/storm.yaml because I need the resource aware scheduler (http://storm.apache.org/releases/current/Resource_Aware_Scheduler_overview.html) so that I can dedicate cores for executors.
I have two nimbuses and one supervisor and three zookeeper. I made the changes to the storm yaml file on the nimbus and supervisor machines. After I restart all components I checked all the storm yaml files but they no longer have my changes. This setting cannot be found listed in the Ambari UI so I cannot use the UI to address the issue.