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fix: double volatile TTLs to survive missed scheduler runs
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TTL = 2x refresh interval ensures data remains valid even if a
scheduled refresh is delayed or fails.

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
jpmschweitzer
2026-01-08 16:54:18 +01:00
co-authored by Claude Opus 4.5
parent 1e31e74ad6
commit 4cfad2e8bc
4 changed files with 123 additions and 14 deletions
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src/models/volatile.py
+14 -13
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@@ -38,20 +38,21 @@ class VolatileNamespace(str, Enum):
# Default TTLs per namespace (in seconds)
# TTL = 2x refresh interval to ensure data survives missed/delayed refreshes
NAMESPACE_DEFAULT_TTL: Dict[str, int] = {
VolatileNamespace.WEATHER: 3600, # 1 hour - current conditions
VolatileNamespace.FORECAST: 43200, # 12 hours - forecast stable longer
VolatileNamespace.SUN: 86400, # 24 hours - sun times change daily
VolatileNamespace.NEWS: 3600, # 1 hour - news cycles
VolatileNamespace.FINANCIAL: 300, # 5 min - markets move fast
VolatileNamespace.TRANSIT: 300, # 5 min - schedules update frequently
VolatileNamespace.TRAFFIC: 600, # 10 min - traffic patterns
VolatileNamespace.AIR_QUALITY: 3600, # 1 hour - air quality stable
VolatileNamespace.SPORTS: 60, # 1 min - live scores
VolatileNamespace.SOCIAL: 600, # 10 min - social notifications
VolatileNamespace.SYSTEM: 60, # 1 min - system health
VolatileNamespace.CONTEXT: 3600, # 1 hour - session context
VolatileNamespace.CUSTOM: 3600, # 1 hour - default for custom
VolatileNamespace.WEATHER: 7200, # 2 hours (hourly refresh)
VolatileNamespace.FORECAST: 86400, # 24 hours (12hr refresh)
VolatileNamespace.SUN: 172800, # 48 hours (daily refresh)
VolatileNamespace.NEWS: 7200, # 2 hours (hourly refresh)
VolatileNamespace.FINANCIAL: 600, # 10 min (5 min refresh)
VolatileNamespace.TRANSIT: 600, # 10 min (5 min refresh)
VolatileNamespace.TRAFFIC: 1200, # 20 min (10 min refresh)
VolatileNamespace.AIR_QUALITY: 7200, # 2 hours (hourly refresh)
VolatileNamespace.SPORTS: 120, # 2 min (1 min refresh)
VolatileNamespace.SOCIAL: 1200, # 20 min (10 min refresh)
VolatileNamespace.SYSTEM: 120, # 2 min (1 min refresh)
VolatileNamespace.CONTEXT: 7200, # 2 hours - session context
VolatileNamespace.CUSTOM: 7200, # 2 hours - default for custom
}