50% free is unnecessary. The only reason to keep that much free is if you
wanted to regularly run major compactions, which you shouldn't.
I'd aim for 75%. Bootstrap new nodes in when you get close to that
number. Ensure you don't have any sstables larger than your available
space and you'll be
Asad,
Ideally you should keep 50% free disk space. Yes, right now you have good
option to scale horizontally or add more disk space if you can. Adding more
nodes will give you more scalability for reads/writes and disk space will just
give you more capacity for current load.
Sent from my
500 nodes, 20tb of ACTIVE DATA per node in hdfs, no brainer, no problem.
But remember the cross DC traffic will get substantial.
“All men dream, but not equally. Those who dream by night in the dusty
recesses of their minds wake up in the day to find it was vanity, but the
dreamers of the day are
