作者彙整: Ian Pointer

These days, massively scalable pub/sub messaging is virtually synonymous with Apache Kafka. Apache Kafka continues to be the rock-solid, open-source, go-to choice for distributed streaming applications, whether you’re adding something like Apache Storm or Apache Spark for processing or using the processing tools provided by Apache Kafka itself. But Kafka isn’t the only game in town.

Developed by Yahoo and now an Apache Software Foundation project, Apache Pulsar is going for the crown of messaging that Apache Kafka has worn for many years. Apache Pulsar offers the potential of faster throughput and lower latency than Apache Kafka in many situations, along with a compatible API that allows developers to switch from Kafka to Pulsar with relative ease. 

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