Emqtt
emqtt is an open-source, scalable, distributed MQTT message broker that supports a wide range of network transport protocols. It is written in Erlang/OTP and provides features such as persistent sessions, queueing, clustering, bridges and enterprise-grade security.
emqtt: Open-Source MQTT Message Broker
emqtt is an open-source, scalable, distributed MQTT message broker supporting various network transport protocols, written in Erlang/OTP with features like persistent sessions, queueing, clustering, bridges and enterprise-grade security.
What is Emqtt?
emqtt is an open-source, scalable, distributed MQTT message broker written in Erlang/OTP. It supports MQTT v3.1/v3.1.1/v5.0 protocols and can handle tens of millions of concurrent MQTT connections on one cluster. emqtt provides a reliable remote message queue for IoT messaging applications and data streaming processing.
Key features of emqtt include:
- Distributed cluster architecture, easy to expand capacity
- Support for MQTT v3.1/v3.1.1/v5.0 protocols
- Tens of millions of concurrent MQTT connections
- Millisecond-level latency and high availability
- Persistent MQTT messages to disk or external databases
- Bridge data to MQTT Broker clusters or third-party message queues
- Enterprise-grade security including TLS/SSL, ACL and authentication
emqtt is an ideal choice for IoT messaging infrastructure and data pipelines. It scales horizontally to handle massive device connections and data volumes required by industrial IoT applications. The plugin system also allows custom authentication/authorization and integration with external services.
Emqtt Features
Features
- Distributed server cluster
- MQTT v3.1/3.1.1/5.0 protocol support
- QOS0/1/2 publish-subscribe support
- Persistent message queue
- Retained messages
- Last Will messages
- WebSocket and STOMP support
- Bridge to other MQTT brokers
- Plugin support for authentication and authorization
- Enterprise-grade security
Pricing
- Open Source
- Free
- Custom Pricing
Pros
High performance and scalability
Open source with active community
Supports wide range of platforms
Easy to deploy and configure
Built-in clustering and redundancy
Supports bridging to other protocols
Extensible through plugins
Cons
Limited user management features
No graphical user interface
Steep learning curve for configuration
Requires expertise with Erlang/OTP
Not ideal for small scale deployments
Official Links
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