Tag: middleware

All the articles with the tag "middleware".

• Kafka (Part 2): Designing a Messaging System to Decouple Email Delivery

  4 Nov, 2023

  Uses email delivery to explain a design that decouples a business system from an email system through Kafka. It discusses responsibility boundaries, a unified message format, sending and callback flows, and a fallback when switching between old and new systems, providing background for subsequent producer and consumer implementations.

• Analyzing the ShardingJDBC Execution Flow

  10 Sep, 2020

  Uses the MyBatis call flow to analyze how ShardingJDBC 4.1.1 integrates with JDBC through custom DataSource, Connection, and PreparedStatement implementations. It traces parameter buffering, physical connection acquisition, and result-set handling, then simulates the proxy workflow with simplified code.

• Using ShardingSphere Database Middleware: ShardingProxy (Part 1), Data Sharding and Read/Write Splitting

  1 Aug, 2020

  Uses ShardingProxy 4.1.1 to configure data sharding and read/write splitting across multiple MySQL instances, then verifies routing through query and insert logs. It covers starting the proxy service, connecting an application, and MySQL driver and version compatibility considerations.

• Using ShardingSphere Database Middleware: ShardingJDBC (Part 2), Read/Write Splitting

  25 May, 2020

  Builds on a data-sharding example to configure ShardingJDBC read/write splitting for a MySQL primary-replica setup. It introduces primary and replica data sources and replica load-balancing strategies, observes queries alternating between replicas, and records the unresolved issue of a slow first query.