Caching
Cache Coherency Field Manual
Warm paths, stampede guards, and invalidation ladders with measured tradeoffs for read-heavy systems.
- Duration
- 4 weeknights + capstone review
- Format
- Evening seminars
- Start window
- September
- Informational price
- 1,680,000 KRW
Description
We walk TTL ladders, probabilistic early expiration, and near-cache patterns with numbers on the board—not slogans. You bring traffic shapes (anonymized) and leave with a field manual draft your team can stress-test. Evening sessions include paired debugging on synthetic traces.
What is included
- TTL ladder worksheets with seasonal traffic overlays
- Stampede guard design drills
- Near-cache vs remote decision trees
- Trace overlays showing cache misses vs user pain
- Pair exercises on synthetic traces
- Mentor review of two anonymized architectures
- Office hours on CDN + application cache interplay
Outcomes
- Pick a cache topology with explicit invalidation rules
- Quantify two consistency risks with mitigation owners
- Document a rollback path for cache schema changes
Responsible mentor
Jiwon Han
Specializes in read model performance for catalog systems; publishes internal playbooks on TTL hygiene.
FAQ
Do we need Redis expertise?
Comfort with any key-value or side-cache helps; concepts map across vendors.
Is hardware provided?
Bring your laptop; we provide datasets and trace files only.
What is out of scope?
We do not tune vendor-specific appliances on-site; focus stays on patterns and measurement.
Experience notes
“Cache Coherency Field Manual finally gave us language for the near-cache fight we were losing silently.”
Rina · Performance engineer
Rated 5/5