Thank you for this great post Austin!
Candice Zhang

Hi Candice,

That’s correct. If the web UI shows 2 live nodes, then you have 2 datanodes available. If you’re expecting 3 it’s worth looking into the logs on the 3rd datanode and see what may be going on. If you type jps on all the datanode machines, the output should also look similar with one processing being the datanode

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