You want to node to only swap Hadoop daemon data from RAM to disk when absolutely
necessary. What should you do?
A.
Delete the /dev/vmswap file on the node
B.
Delete the /etc/swap file on the node
C.
Set the ram.swap parameter to 0 in core-site.xml
D.
Set vm.swapfile file on the node
E.
Delete the /swapfile file on the node
D
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D is the right one
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D. It’s a recommendation to the installation and displays a warning if not set up.
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D
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isn’t is supposed to be vm.swappiness=0 ??
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