Kafka Manager vs Mosca: What are the differences?

What is Kafka Manager? A tool for managing Apache Kafka, developed by Yahoo. This interface makes it easier to identify topics which are unevenly distributed across the cluster or have partition leaders unevenly distributed across the cluster. It supports management of multiple clusters, preferred replica election, replica re-assignment, and topic creation. It is also great for getting a quick bird’s eye view of the cluster.

What is Mosca? A Node.js MQTT broker. A Node.js MQTT broker, which can be used as a Standalone Service or embedded in another Node.js application.

Kafka Manager and Mosca can be primarily classified as "Message Queue" tools.

Some of the features offered by Kafka Manager are:

• Manage multiple clusters
• Easy inspection of cluster state (topics, brokers, replica distribution, partition distribution)
• Run preferred replica election

On the other hand, Mosca provides the following key features:

• MQTT 3.1 and 3.1.1 compliant
• QoS 0 and QoS 1
• Various storage options for QoS 1 offline packets, and subscriptions

Kafka Manager and Mosca are both open source tools. It seems that Kafka Manager with 7.56K GitHub stars and 1.84K forks on GitHub has more adoption than Mosca with 2.84K GitHub stars and 501 GitHub forks.