. @Blair Vanderlugt your Namenode is now running on a different node and the only components left on the "old" node are Atlas Metadata Server, DRPC Server, Spark History Server and Storm UI Server correct? Unfortunately, I dont think you can delete these components and just reinstall them on a different node, because these are master components. Have you tried deleting the components of this node via API or did you try to delete the complete services via API (service=Spark, components=Spark JHS, Spark Client) Could you post some of the errors you received when deleting these components/services via API? Here is what I would try to do: 1) Make a backup of your configuration, databases, etc.; Write down all the config changes you have made to Storm, Atlas, and Spark (master service on your terminated node); this might help https://community.hortonworks.com/questions/4792/a... 2) Delete the whole service including its components from the node, see this https://cwiki.apache.org/confluence/display/AMBARI... 3) Reinstall services on a new node and put the old configuration back in place
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