Why architecture matters here

Persistence fails on schema drift, silent PII, and missing hydration tests. Architecture matters because serialization + store + evolution all combine.

Advertisement

The architecture: every piece explained

The top strip is core. Agent state. Serialization. Session store. Restart hydrate.

The middle row is evolution. Schema evolution. Migration on read. TTL + eviction. Encryption at rest.

The lower rows are ops. Access control. Metrics. Ops — backup + restore + tests.

Java agent persistence — state serialization + session store + restart + upgradesagents that survive process restartAgent statecontext + historySerializationJSON / proto / customSession storedurable KVRestart hydrateload + continueSchema evolutionversionedMigration on readv1 → v2TTL + evictionbound growthEncryption at restPII protectionAccess controlper sessionMetricssize + latencyOps — backup + restore + testsversionmigrateboundprotectgatemeasuremeasureoperateoperate
Java agent persistence pipeline.
Advertisement

End-to-end flow

End-to-end: user chats. Agent state persists every N turns. Process restarts. Client reconnects with session ID; state hydrates; conversation continues seamlessly. Schema v1 migrated on read to v2 as new fields added.