Unbounded key cardinality growth leads to chaotic eviction behavior

Including user input, URLs, or search queries directly in Redis keys without predictability controls causes unbounded cardinality growth. Redis has no warnings when cardinality explodes, simply allocating memory until exhausted, resulting in unpredictable and chaotic eviction behavior.

Sources

• https://www.c-sharpcorner.com/article/redis-anti-patterns-common-mistakes-that-break-performance-reliability-and-tr/

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