Cache TTL: ms vs seconds Debugging Lab

Cache TTL: ms vs secondsCaching & PerformanceEasyPreparing workspaceAutosaved

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Incident Dossier

Cache TTL: ms vs seconds

A feature flag service stores values with a 60 second TTL. Right after every deploy, every flag reads as missing until the cache is warmed manually.

Initial failing signalFreshly stored value reads as undefinedExpected { enabled: true } after 30s · received undefined

Progress

1Reproduce the bugRun checks

2Edit the fixOpen

3Pass checksOpen

4Submit fixOpen

Reproduction Steps

Focus Mode

Start

Likely area

Progressive hints

Hints reveal broad direction first, then narrow toward the suspect path without showing hidden tests or exact solution code.

TopicCaching & Performance

DifficultyEasy

Est. time12 min

Workspacecreating

Explorer

Preparing workspace files…

Evidence Map

Autosaved

workspace

Outputread-onlyready$ workspace boot

Workspace booting...