Top 7 Java Pulsar Projects

Apache Pulsar

14 12,762 9.9 Java

Apache Pulsar - distributed pub-sub messaging system

Project mention: Kafka alternatives | /r/apachekafka | 2023-05-22
kop

3 406 6.8 Java

Kafka-on-Pulsar - A protocol handler that brings native Kafka protocol to Apache Pulsar

Project mention: Interview question | /r/java | 2023-02-23

I process hospitality data somewhat similarly, but use Pulsar and can individually acknowledge messages, have DLQs built in, and if needed can stream just like Kafka. And if I need Kafka compatibility, I can use something like StreamNative's KOP and get Kafka compatibility over my existing Pulsar queues.
InfluxDB

www.influxdata.com
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mop

1 137 5.8 Java

MQTT on Pulsar implemented using Pulsar Protocol Handler (by streamnative)

Project mention: Improving Developer Productivity at Disney with Serverless and Open Source | /r/java | 2022-11-10

While Pulsar has its own protocol that handles streaming, queues, and a lot of the other features (distributed transactions, functions, etc.), it can also speak other messaging protocols via plug-ins. Looking around, the ones that appear to be actively developed are MQTT, Kafka (so your existing applications that use Kafka can also use Pulsar), AMQP, and JMS.
aop

1 97 10.0 Java

AMQP on Pulsar protocol handler (by streamnative)

Project mention: Improving Developer Productivity at Disney with Serverless and Open Source | /r/java | 2022-11-10

While Pulsar has its own protocol that handles streaming, queues, and a lot of the other features (distributed transactions, functions, etc.), it can also speak other messaging protocols via plug-ins. Looking around, the ones that appear to be actively developed are MQTT, Kafka (so your existing applications that use Kafka can also use Pulsar), AMQP, and JMS.
pulsar-jms

1 40 8.7 Java

DataStax Starlight for JMS, a JMS API for Apache Pulsar ®

Project mention: Improving Developer Productivity at Disney with Serverless and Open Source | /r/java | 2022-11-10

While Pulsar has its own protocol that handles streaming, queues, and a lot of the other features (distributed transactions, functions, etc.), it can also speak other messaging protocols via plug-ins. Looking around, the ones that appear to be actively developed are MQTT, Kafka (so your existing applications that use Kafka can also use Pulsar), AMQP, and JMS.
pulsar-recipes

1 9 10.0 Java

A StreamNative library containing a collection of recipes that are implemented on top of the Pulsar client to provide higher-level functionality closer to the application domain.

Project mention: December 5, 2022: FLiP Stack Weekly | dev.to | 2022-12-03
pulsar-weighted-consumer

1 9 10.0 Java

Pulsar consumer clients offering priority consumption

Project mention: Dec 12, 2022 FLiP Stack Weekly | dev.to | 2022-12-11
Sonar

www.sonarsource.com
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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-05-22.