部署Spring Boot项目到阿里云ECS时，Linux系统需要多少内存？主要考虑：1) JVM堆内存配置（默认1GB）；2) 并发请求量（预计500QPS）；3) 系统进程开销。是否需要选择4GB以上内存？是否有优化建议降低内存需求？阿里云ECS服务器99元，续费同价：https://www.aliyun.com/minisite/goods

文章 2022-02-17 来自：开发者社区

Linux环境下ElasticSearch的安装与使用(SpringBoot整合云服务器上的ElasticSearch)

Elaticsearch，简称为ES，ES是一个开源的高扩展的分布式全文检索引擎，它可以近乎实时的存储、检索数据；本身扩展性很好，可以扩展到上百台服务器，处理 PB 级别（大数据时代）的数据。ES由 Java 语言开发并使用 Lucene 作为其核心来实现所有索引和搜索的功能，但是它的目的是通过简单的 RESTFULL API 来隐藏 Lucene 的复杂性，从而让全文搜索变得简单。据国际权威的....

文章 2022-02-17 来自：开发者社区

Linux环境下Kafka的安装与使用(SpringBoot整合云服务器上的Kafka)

本文我们主要讲 Kafka 的安装和使用，对于 Kafka 的简介和功能作用就不再详细介绍，给大家推荐一篇文章，可以自行了解：https://blog.csdn.net/weixin_42238150/article/details/1074497871. 下载kafkaKafka 官网：http://kafka.apache.org/下载地址：http://archive.apache.org....

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