Distributed Cache
System Analysis
Normal Behavior
A cache shared by multiple application servers, typically maintained as an external service.
Failure Behavior
May drop requests or fallback to degraded mode under load.
Business Consequence
The failure of a Distributed Cache causes a devastating cache stampede (thundering herd). All incoming user requests suddenly bypass the high-speed cache and hit the slow, disk-based primary database simultaneously. This overwhelming load typically melts the primary database, resulting in a total system outage. The business loses all transactional capabilities and customer access until the cache is repopulated and the database recovers.
Visual Manifestation
"Database CPU utilization spikes to 100% instantly. Application response times degrade from milliseconds to tens of seconds, followed by widespread HTTP 503 and 504 errors."
Satirical Behavior
"A fragile memory band-aid applied over a terribly optimized database, fundamentally guaranteeing that when the cache restarts, the entire company website goes down with it."
Technical Terminology
Failure Indicators
System Architecture (Graph)
FAQ
How does it normally behave?
A cache shared by multiple application servers, typically maintained as an external service.
How does it fail?
May drop requests or fallback to degraded mode under load.
What is the business consequence?
The failure of a Distributed Cache causes a devastating cache stampede (thundering herd). All incoming user requests suddenly bypass the high-speed cache and hit the slow, disk-based primary database simultaneously. This overwhelming load typically melts the primary database, resulting in a total system outage. The business loses all transactional capabilities and customer access until the cache is repopulated and the database recovers.
What is a Distributed Cache?
A cache shared by multiple application servers, typically maintained as an external service.
Explore the system
AI Summary
Distributed Cache is a DATA_AND_STORAGE system in TinyCTO.tv. A cache shared by multiple application servers, typically maintained as an external service.