中间件

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Arthas 是Alibaba开源的Java诊断工具，深受开发者喜爱。

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ELK (ElasticSearch, Logstash, Kibana)

一个更易于构建云原生应用的动态服务发现、配置管理和服务管理平台。

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基于 docker 搭建 zookeeper(3.4.14) 集群 (5个节点)

Apache Kafka是分布式发布-订阅消息系统。它最初由LinkedIn公司开发，之后成为Apache项目的一部分。Kafka是一种快速、可扩展的、设计内在就是分布式的，分区的和可复制的提交日志服务。

ElasticSearch 使用教程. Base on Java and Spring boot

ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. All of these kinds of services are used in some form or another by distributed applications. Each time they are implemented there is a lot of work that goes into fixing the bugs and race conditions that are inevitable. Because of the difficulty of implementing these kinds of services, applications initially usually skimp on them, which make them brittle in the presence of change and difficult to manage. Even when done correctly, different implementations of these services lead to management complexity when the applications are deployed.

归纳 Nginx 的 高频使用指南.

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