When administrators update subscription plan configurations (traffic limits,
nodes, speed limits, etc.), existing subscribers were not seeing the updated
settings immediately. This was caused by stale cache entries that were not
being invalidated.
The issue occurred because:
- User subscription queries cache the entire result including preloaded plan details
- Plan update/delete operations only cleared the plan's own cache keys
- User subscription cache keys (cache:user:subscribe:user:{userId}) remained stale
This fix ensures that when a subscription plan is updated or deleted, all
associated user subscription caches are properly invalidated by:
- Querying all active users subscribed to the plan
- Building cache keys for each affected user
- Clearing both plan and user subscription caches atomically
Users will now immediately see updated plan configurations without waiting
for cache expiration.
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