Lessons Learned
Curated library of lessons extracted from all published postmortems, categorized by theme for easy discovery.
Total Lessons
6
Across all postmortems
Themes
8
Distinct categories
Most Common Theme
3
Caching
Source Postmortems
2
Contributing documents
JWKS rotation needs proactive cache invalidation, not just TTL expiry.
From: Auth Service JWKS Cache StaleAlerting thresholds should be calibrated to detect meaningful deviations, not just severe spikes.
From: Auth Service JWKS Cache StaleThe authz-engine should fetch new keys eagerly when it encounters a kid it doesn't recognize.
From: Auth Service JWKS Cache StaleSession TTL changes require capacity review.
From: Redis Cluster Memory Pressure EventEviction policy should be allkeys-lru for session caches.
From: Redis Cluster Memory Pressure EventNeed graduated alerting at 80%, 85%, 90%.
From: Redis Cluster Memory Pressure EventThemes
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Theme Distribution
Where do our lessons cluster?
Caching3 (50%)
Process2 (33%)
Security1 (17%)
Deployments0 (0%)
Dependencies0 (0%)
Infrastructure0 (0%)
Cloud Provider0 (0%)
Performance0 (0%)