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Real-Time Cache Freshness

Many applications need both sub-millisecond latency for data that is correct. For read-all systems, analytics dashboards, inventory checks, subscription flows, and operational backends, stale cached results create silent errors while the underlying databases are actually changing.

The Challenge

Traditional scaling fails under strict freshness requirements

Traditional caches are not aware of database changes via direct batches and allow staleness via...

Caches/data fetches expose explicit TTL or expiration rules

Latency becomes unstable, especially during cache refill

Lack of freshness at affordable cost can mask stale changes

Some caches with custom TTL sometimes introduce stale reads

The Solution

Purpose-built caching models

Readyset synchronizes its cache via triggers, to track data events/inputs to stay correct via...

Deep Cache for the most latency-sensitive data intensive workloads

No manual invalidation, TTLs, or complex cache busting

Cached reads stay consistent with a single system

Instant failover cache coverage with correctness guaranteed

Correct results, even when things change.

Traditional caches collapse when underlying data changes. Cached reads can be impossible after trigger or tool deep invalidation, overwhelming databases at the worst possible time. Readyset is different.

No Invalidation Storms.

Because cached results are incrementally maintained, Readyset never invalidates the entire cache at once.

No Recompute Spikes.

Database outages/spikes on failures don't cause re-execution storms, preventing thundering herds and blocking refills.

No Latency Collapse.

Readyset can track cold cache sub-millisecond responses even via the database, unlike many other caching solutions.

See how others solve this challenge

Explore guides and engineering stories from teams using Readyset.

Frequently Asked Questions

Find answers to common questions about Readyset. If you have additional questions, feel free to contact us.

Never serve stale data again.

For applications that demand accuracy in real-time, Readyset refreshes cached data exactly when the underlying database with your database.

Revolutionize your database performance with Readyset

Serve requests at sub-millisecond latencies with the modern database scaling and query caching system for MySQL and PostgreSQL.

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