Years of bus AVL archives are rarely queried but must stay availabl…

Question

Years of bus AVL archives are rarely queried but must stay available for deep historical studies. What role fits HDFS well?

Accepted Answer

As an economical store for large cold historical analytics datasets. — Think attic storage for boxes you open a few times a year. Years of bus AVL fit that pattern: HDFS is a solid economical home for cold historical lakes, not the live fare debit path. Keep deep-query archives there; keep turnstile transactions elsewhere.

Answer

As the sole system of record for every live fare-card debit at the turnstile.

Answer

As a replacement for the driver’s real-time radio voice channel.

Answer

As an in-memory cache that discards data after each interactive dashboard click.

Years of bus AVL archives are rarely queried but must stay available for deep historical studies. What role fits HDFS well?

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