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hadoophdfshadoop2
Dino L.
Dino L.

Reputation: 137

Can I add standby namenode into existing Hadoop cluster (with Namenode and Secondary namenode)

I have Hadoop 2.7.2 setup where Namenode and Secondary Namenode node run together with few datanodes. After namenode failure (it was just restart) I realized that Secondary namenode is not redundant namenode as I thought.

So question is, can I make my cluster high available and add Standby namenode without deleting existing metadata from namenode?

Upvotes: 0

Views: 503

Answers (1)

OneCricketeer
OneCricketeer

Reputation: 191743

You need a Zookeeper cluster, but yes, you can add a namenode to enable High Availability

Upvotes: 1

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