这没有汤姆猫
MQTT (Message Queuing Telemetry Transport)是一种轻量级、基于发布-订阅模式的消息传输协议,这是一个位于OSI模型中的应用层,基于TCP协议。它适用于资源受限的设备和低带宽、高延迟或不稳定的网络环境。所以它在物联网场景中被大量使用,能够很好实现设备之间的高效通信。
MQTT is an OASIS standard messaging protocol for the Internet of Things (IoT). It is designed as an extremely lightweight publish/subscribe messaging transport that is ideal for connecting remote devices with a small code footprint and minimal network bandwidth. MQTT today is used in a wide variety of industries, such as automotive, manufacturing, telecommunications, oil and gas, etc.
etcd是一个分布式、强一致性,高可靠性的开源键值对存储系统,通常被用来配置管理或者服务发现,K8s就是用它来存储所有集群的状态信息的。
etcd is a strongly consistent, distributed key-value store that provides a reliable way to store data that needs to be accessed by a distributed system or cluster of machines. It gracefully handles leader elections during network partitions and can tolerate machine failure, even in the leader node.

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