Production Failure Modes & Governance¶
How does it survive time, scale, multiplicity, and scrutiny?
Module 9 of 9 in Time, Scale, Multiplicity, Trust · 5 lessons · about 3.8 hours
80. The Failure Field Guide · ~45 min
Five of seven symptoms are ambiguous, so the useful column is the tell.
81. Memory Observability · ~45 min
Six answers from the record with no logging, and three that need a read-time write.
82. Invariants and Drift Detection · ~45 min
Collect the invariants, label the kind, and stop an outlier moving its own reference.
83. Migrating Live Memory · ~45 min
The id hashes identity, not state -- which is why this migration was one phase.
84. Hardening Pass · ~50 min
Ship v0.3 with its six open items -- the section that makes the rest checkable.