Spring AI Chat Memory: Missing Context in Model Requests
Trace how Spring AI loads chat memory into model requests, and reproduce common issues with conversation IDs, message windows, and failed-call retries.
Category Java & JVM
AI Coding Careers: Build, Verify, Deliver
How developers can use AI coding tools while building durable skills in business understanding, system design, verification, and reliable delivery.
Revenue Attribution: Trace Fulfillment to Sales and Commissions
Trace service fulfillment back to sales, allocate stored-value payments, handle refunds, and calculate auditable partner commissions from confirmed facts.
Hybrid Recommendations with Rules, Segments, and LLMs
Combine member profiles, rule-based tags, cohort behavior, and LLM explanations while keeping eligibility checks grounded in verified facts.
Beyond Uptime: Redis Pressure and Classroom Reliability
Measure online classroom reliability through Redis retention, ClickHouse event definitions, entry latency, and after-class archival backlog—not uptime alone.
Classroom Messaging: Ordering, Deduplication, Reconnection
Trace how regional classroom messaging keeps pages, annotations, and teacher actions consistent across delay, duplication, route failover, and student reconnection.
Distributed Workflow Ordering: Why Event Timestamps Fail
See how clock skew breaks event ordering, then compare fixed clocks, monotonic timing, Lamport clocks, and order versions in Java.
Distributed Transactions in Java: Outbox, TCC, and Saga Compared
A Java order workflow compares local transactions, the transactional outbox, TCC, and Saga using concrete failure paths for inventory, payment, rewards, and refunds.
Redis Caching in Java: TTL, Invalidation, and Consistency Tests
Debug Redis cache consistency in a Java service with cache-aside reads, TTL, invalidation, stale data, and database failures. Includes repeatable failure tests.
MySQL and ClickHouse Consistency: Outbox and Recovery
Keep MySQL and ClickHouse aligned with an outbox, versioned writes, reconciliation queries, and explicit recovery for delayed or duplicate events.