Hi @shrikant_bm , When ever Active NameNode server goes down, its associated daemon also goes down. HA works in the same way whenever Active NameNode daemon or server goes down. ZKFC will not receive the heartbeat and the ZooKeeper session will expire, notifying the other NameNode that a failover should be triggered. To answer your question: yes, in both the cases mentioned by you, HA should work.
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