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I've set up a two node cluster using Ambari with HBase installed. I know that we can't achieve Namenode HA without three nodes. But can we make HBase high available with two nodes, by just adding a Standby HBase Master. Does Hbase high availability depend on Namenode high availability?

thanuja
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2 Answers2

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Yes, you can make HBase HA with just two Hbase Masters. However, Hbase will go down if your single Namenode goes down since Hbase depends on HDFS to work.

Tony
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  • Some useful comments can be found here : https://community.hortonworks.com/questions/117939/hbase-high-availability-minimum-requirements.html – thanuja Aug 16 '17 at 08:48
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Have you considered using one of the virtual SAN solutions to provide HA NFS share for your cluster? Two nodes should be enough for such configuration.

Strepsils
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