- Published on
Design a durable workflow orchestrator that handles duplicate and out-of-order Kafka events, persists state transitions in PostgreSQL, and publishes commands safely through a transactional outbox.
Apache-kafka
All Posts
- spring-boot (21)
- apache-kafka (12)
- postgresql (11)
- redis (4)
- transactional-outbox (4)
- microservices (3)
- idempotency (3)
- observability (3)
- nextjs (2)
- security (2)
- migration (2)
- oauth-20 (2)
- jpa (2)
- real-time-analytics (2)
- app-router (1)
- server-actions (1)
- ssrf (1)
- dependency-management (1)
- caching (1)
- data-structures (1)
- operations (1)
- graalvm (1)
- java-25 (1)
- native-image (1)
- aot (1)
- docker (1)
- performance-testing (1)
- spring-security (1)
- openid-connect (1)
- jwt (1)
- authorization (1)
- api-security (1)
- spring-kafka (1)
- retries (1)
- dead-letter-topic (1)
- database-sharding (1)
- data-routing (1)
- resharding (1)
- distributed-systems (1)
- spring-webflux (1)
- project-reactor (1)
- r2dbc (1)
- backpressure (1)
- reactive-transactions (1)
- grpc (1)
- protocol-buffers (1)
- java-virtual-threads (1)
- deadlines (1)
- streaming (1)
- redis-streams (1)
- rate-limiting (1)
- spring-session (1)
- eventual-consistency (1)
- data-reconciliation (1)
- read-your-writes (1)
- domain-driven-design (1)
- bounded-context (1)
- aggregates (1)
- service-mesh (1)
- istio (1)
- kubernetes (1)
- ambient-mesh (1)
- mtls (1)
- traffic-management (1)
- microservice-testing (1)
- testcontainers (1)
- contract-testing (1)
- multi-tenancy (1)
- hibernate (1)
- row-level-security (1)
- saas-architecture (1)
- distributed-caching (1)
- cache-invalidation (1)
- external-integration (1)
- opentelemetry (1)
- prometheus (1)
- grafana (1)
- structured-logging (1)
- schema-migration (1)
- flyway (1)
- debezium (1)
- distributed-locking (1)
- redisson (1)
- concurrency-control (1)
- fencing-token (1)
- kafka-streams (1)
- stateful-processing (1)
- event-driven-architecture (1)
- multi-region (1)
- disaster-recovery (1)
- high-availability (1)
- spring-cloud-gateway (1)
- api-gateway (1)
- resilience4j (1)
- workflow-orchestration (1)
- state-machine (1)
- backend-for-frontend (1)
- java (1)
- virtual-threads (1)
- api-design (1)
- typescript (1)
- nodejs (1)
- mdx (1)
- build-tools (1)
- Published on
Design a multi-region backend with explicit RTO and RPO targets, single-writer PostgreSQL failover, independent regional Kafka clusters, controlled traffic recovery, and testable disaster-recovery runbooks.- Published on
Learn where Kafka exactly-once semantics stop, why database side effects still need idempotency, and how to combine a PostgreSQL outbox with an idempotent Spring Kafka consumer.- Published on
Build a stateful Kafka Streams application with event-time windows, local RocksDB stores, changelog recovery, exactly-once Kafka processing, and an idempotent PostgreSQL materialized view.- Published on
Plan an expand-migrate-contract rollout for PostgreSQL and Kafka with compatible Spring Boot deployments, chunked backfills, transactional outbox or CDC, validation gates, and safe cleanup.