Bridge is a way to connect multiple EMQ X or other MQTT message middleware. Unlike clusters, topic trees and routing tables are not replicated between nodes operating in bridge mode.
MQTT broker, also known as the MQTT message server, can be a server or a cluster of servers running MQTT message server software.
When MQTT clients publish messages, you can set the retained message flag, and then the next subscribers can receive the latest retained message when subscribe.
MongoDB is a product between relational database and non-relational database. Among non-relational databases, MongoDB has the most abundant functions and most resembles relational database. MongoDB is written in C++ and is an open source database system based on distributed file storage. MongoDB is designed to provide a scalable, high-performance data storage solution for data storage. It can easily add more nodes under high load to ensure service performance.
Helm3 was released in November 2019, which adds many new features compared to Helm2.In this article, how to deploy EMQ X cluster on Kubernetes via Helm3 will be introduced.
The types of IoT devices are complex, and the encoding formats used by various vendors are different. Therefore, when accessing the IoT platform, a unified data format is required, so that applications of equipment on the platform can be managed.
Amazon DynamoDB is a fully hosted NoSQL database service that supports key values and document data structures.
The 2019 China International Intelligence Industry Expo (hereinafter referred to as the 2019 Intelligence Expo) was held in Chongqing International Expo Center from August 26 to 29, 2019. At the invitation of the Organizing Committee of the Expo, Intel Corporation attended the exhibition and created the "Intel Intelligence Innovation Zone".
Officially launched in September, the official version of EMQ X Enterprise 3.4.0 is released by EMQ. In this version, the management configuration and rule engine functions are enhanced, message encoding and decoding, cluster hot configuration and vehicle networking protocol support are added, and a new management monitoring Dashboard page is designed, and this version is a stable version recommended for enterprise applications.
Cassandra is an open source distributed database system from Apache that supports linear extension , high availability without losing the original read and write performance. At present, it is widely used in the back-end services of large enterprises, such as Netflix, Apple and so on, which have deployed thousands of nodes.