My spark.cores.max property is 24 and I have 3 worker nodes. Once I log into my worker node, I can see one process running which is the consuming CPU. I think it is not using all the 8 cores. How can I check the number of cores?
Go to your Spark Web UI & you can see you’re the number of cores over there:
hadoop fs -cat /example2/doc1 | wc -l
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