Council marketing claims HDFS replication means the city never needs operational practices for disk or node loss. What is the accurate view?
Select an answer to reveal the explanation.
Short Explanation
Spare tires help after a puncture—they do not retire the mechanic. HDFS replication cushions disk and node loss, yet monitoring, backups, and NameNode care still matter. Marketing that promises zero-ops from replicas alone oversells the feature.
Full Explanation
HDFS replication places multiple block copies so the system can tolerate disk or DataNode failures. That resilience is real, but it is not a substitute for monitoring, NameNode high-availability planning, backups of critical metadata, and operational runbooks. Replication aids survival; it does not eliminate operations.