Please take this survey to help us learn more about how you use third party tools. Your input is greatly appreciated!
Eon Mode - what is the difference between a primary and a critical subcluster?

Leave a Comment
Can't find what you're looking for? Search the Vertica Documentation, Knowledge Base, or Blog for more information.
Answers
They are different notions.
Primary subcluster and secondary subcluster are distinguished by whether the nodes in that subcluster persist catalog and count towards quorum or not.
Critical subcluster, is calculated by Vertica to tell user which subcluster can't be shutdown at the moment, otherwise the entire cluster will go down.
Of course, secondary subcluster can never be critical.