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Step‑by‑step guide to start a Vert.x 4.x clustered event bus, register a custom codec, and use timed request‑response messaging with failure handling.
Learn how to enable Vert.x’s clustered event bus with Hazelcast, run a simple sender/receiver example across two JVMs, and verify the setup while understanding latency and version‑compatibility trade‑offs.
Learn how to use PM2 Cluster Mode to eliminate deployment downtime. This guide covers ecosystem configuration, rolling restarts, and the necessity of stateless architecture.
Stop dropping requests during deployments. Learn how to use PM2 cluster mode and rolling reloads to achieve zero-downtime updates for Node.js apps.
Distributed Message Handling The Vert.x Event Bus facilitates request-response patterns across clustered JVM nodes using a cluster manager for routing. When a sender dispatches a message to a specific address, the system distributes the request among available handlers, typically via round-robin load balancing. Resource Management and Timeouts In high-throug
Cluster Manager Interoperability Vert.x uses an Event Bus that runs in standalone mode by default. For production, clustering via a Cluster Manager such as Hazelcast extends the bus across multiple JVMs. A common discrepancy arises between local development, where multicast discovery works on a LAN, and cloud environments (AWS, GCP) where multicast is blocke
Goal: Determine the safest, lowest‑cost approach to handle Phoenix.PubSub when a low‑traffic application might later be scaled to a second node. Constraints: The current cheapest setup runs a single release with server mode enabled, relies on the default PG2‑style PubSub adapter, and accepts a brief availability gap during each deploy. Adding a second node w
vertx
pm2
nodejs