Is it possible to additional space to HDFS (in the form of new datanodes) with
minimal/no fuss? In other words, if I have 8T across 16 machines, and I want
to go to 16T across 32 machines, can I roll in new machines easily, or do I
need to plan considerable downtime to rebuild things and move data around?
There are obvious implications here for how big an initial system to build,
and the costs associated with buying now and buying later.
Thanks,
C G
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