Comment by hliyan

I've written this comment before: in 2007, there was a period where I used to run an entire day's worth of trade reconciliations of one of the US's primary stock exchanges on my laptop (I was on-site engineer). It was a Perl script, and it completed in minutes. A decade later, I watched incredulously as a team tried to spin up a Hadoop cluster (or Spark -- I forget which) over several days, to run a work load an order of magnitude smaller.