A Vindex maps column values to keyspace IDs Advantages The Primary Vindex Secondary Vindexes Unique and NonUnique Vindex Functional and Lookup Vindex Lookup Vindex types Consi...

A Vindex maps column values to keyspace IDs Advantages The Primary Vindex Secondary Vindexes Unique and NonUnique Vindex Functional and Lookup Vindex Lookup Vindex types Consi...

Introduction Benefits 100% MQTT Compliant Data Security & Privacy Cloud-Native Run Anywhere High ROI (Return on Investment) with Low TCO (Total Cost of Ownership) Global Techn...

Django FAQ Django FAQ FAQ: General Why does this project exist? What does “Django” mean, and how do you pronounce it? Is Django stable? Does Django scale? Who’s behind thi...

Image Metadata Overview Defining Image Metadata Image Metadata You are viewing documentation for a release that is no longer supported. The latest supported version of versio...

Concept Source Sink Processing guarantee Set Update Work with connector Messaging systems are most powerful when you can easily use them with external systems like database...

CQRS模式概述 CQRS模式概述 为什么要选择CQRS模式来实现微服务？在传统的应用结构中，应用通常要对在数据库中持久化的数据进行操作。通常为数据模型实体使用唯一的数据库，同时用于读取和写入。数据的设计由写入和更新操作驱动，以保持数据一致性。开发人员尝试使用正规化(normalization)技术来最小化数据冗余。虽然有必要以规范化的形式存储数据，...

Create a new service class Update the service container Test it out Create a new service class Back in the MVC basics chapter, you created a FakeTodoItemService that contain...

限流 (Rate Limiting) 限流 (Rate Limiting) 为防止滥用，你应该考虑对您的 API 限流。例如，您可以限制每个用户 10 分钟内最多调用 API 100 次。如果在规定的时间内接收了一个用户大量的请求，将返回响应状态代码 429 (这意味着过多的请求)。 要启用限流, [[yii\web\User::identityC...

WEB Farms and Caching WEB Farms and Caching Now let’s consider we have a social networking site and have millions of user profiles. Profile pages of some famous users might be ...