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Someone says you need Spark for this, and you're not sure the file is even big enough to need it.
What you'll have at the end
A short note with the dataset's real size and row count, and whether your laptop can already process all of it.
You need
A specific file or folder somebody has already called too big for one machine, plus the ability to check its size, row count, and how much memory your own machine has free.
Not covered
This does not cover setting up a cluster, tuning shuffle or memory settings, or streaming data that never finishes arriving; it only covers the size-and-memory check for a file that already exists.
Leans on
Query a folder of Parquet files directly instead of loading them into a warehouse
for turning the same directly-off-disk technique into a repeatable way to answer questions once you know a file doesn't need a cluster
Choose Parquet over plain CSV
for cutting the same file's real size down before you even run this check again
Checked 25 Aug 2026
Part of the Big Data cookbook