Clustered Request-Reply on the Vert.x Event Bus
Use Vert.x event bus request-reply for intra-cluster verticle communication without dedicated HTTP endpoints, with caveats around durability and exactly-once delivery.
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javaEfficient Service Messaging in Vert.x: Request-Reply and Custom Codecs
Optimize Vert.x service-to-service communication using custom MessageCodecs and the request-reply pattern to send domain objects across a clustered event bus without blocking.
Vert.x Event Bus with JSON Codec: Architecture Note for Microservices
A custom JSON codec and worker verticles keep the Vert.x Event Bus responsive, but clustered delivery introduces silent failure modes and a hard 256 KB payload limit.
Vert.x Event Bus: Request-Response Without Blocking the Loop
A practical look at Vert.x Event Bus request-response messaging, including deployment, codec choices, and how to avoid freezing the event loop.
Custom Message Codecs in Vert.x: Solving the POJO Serialization Bottleneck
Vert.x Event Bus rejects arbitrary POJOs by default. Learn how custom message codecs restore type safety, what registration discipline they demand in a cluster, and how to verify the result.
Scaling Vert.x Applications with Clustered Event Bus
Learn how to enable Vert.x Event Bus clustering with Hazelcast, run a simple chat service across nodes, and understand the trade‑offs involved.
Using Vert.x Event Bus Request‑Response for Loosely Coupled Services
Learn how Vert.x’s request‑response pattern simplifies service communication, see a runnable example, and understand the trade‑offs of timeout handling and clustering.
Vert.x Event Bus Clustering with Hazelcast: Practical Patterns for Distributed Messaging
Practical patterns for Vert.x Event Bus clustering with Hazelcast: message ordering guarantees, serialization contracts, split-brain protection, and why the clustered Event Bus is a coordination layer — not a message broker replacement.
Choosing a Vert.x Event Bus Delivery Pattern: Point-to-Point, Publish/Subscribe, or Request/Reply
A decision guide to Vert.x Event Bus delivery patterns — send, publish, and request — with a comparison table, backpressure and clustering trade-offs, and a runnable two-verticle validation example.