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EMQ vs Apache Pulsar: What are the differences?
Developers describe EMQ as "The Scalable MQTT Broker for IoT and Mobile Applications". It is fully open source and licensed under the Apache Version 2.0. It implements both MQTT V3.1 and V3.1.1 protocol specifications, and supports MQTT-SN, CoAP, WebSocket, STOMP and SockJS at the same time. On the other hand, Apache Pulsar is detailed as "Distributed solution providing messaging and queuing for streaming data". Apache Pulsar is a distributed messaging solution developed and released to open source at Yahoo. Pulsar supports both pub-sub messaging and queuing in a platform designed for performance, scalability, and ease of development and operation.
EMQ and Apache Pulsar can be primarily classified as "Message Queue" tools.
Some of the features offered by EMQ are:
- Full MQTT V3.1/3.1.1 Protocol Specifications Support
- Easy to Install - Quick Install on Linux, FreeBSD, Mac and Windows
- Massively scalable - Scaling to 1 million connections on a single server
On the other hand, Apache Pulsar provides the following key features:
- Unified model supporting pub-sub messaging and queuing
- Easy scalability to millions of topics
- Native multi-datacenter replication
EMQ and Apache Pulsar are both open source tools. It seems that Apache Pulsar with 6.24K GitHub stars and 1.51K forks on GitHub has more adoption than EMQ with 230 GitHub stars and 113 GitHub forks.
According to the StackShare community, Apache Pulsar has a broader approval, being mentioned in 3 company stacks & 43 developers stacks; compared to EMQ, which is listed in 3 company stacks and 6 developer stacks.
Pros of Apache Pulsar
- Simple7
- Scalable4
- High-throughput3
- Geo-replication2
- Multi-tenancy2
- Pulsar Functions1
- Secure1
- Stream SQL1
- Horizontally scaleable1
- Easy to deploy1
- Fast1
Pros of EMQX
- QoS 23
- Clusters2
- Plugins1
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Cons of Apache Pulsar
- Very few commercial vendors for support1
- LImited Language support(6)1
- No one and only one delivery1
- No guaranteed dliefvery1
- Not jms compliant1
- Only Supports Topics1
Cons of EMQX
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What is Apache Pulsar?
What is EMQX?
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What tools integrate with Apache Pulsar?
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