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2 versions of datanodes currently live

New Contributor

Is it ok to have 2 versions of Hadoop in same 4 nodes cluster?

Here's what I have in the panel:

There are 2 versions of datanodes currently live:3.1.1 (3) ,3.1.3 (1)

 

Should I upgrade 3 nodes to 3.1.3 or downgrade one node to 3.1.1?

2 REPLIES 2

The DataNodes should run the same software version as the NameNode.

New Contributor

Any details, explanation or pointers on why this is the case?