/incubator-pulsar

Pulsar - distributed pub-sub messaging system

Primary LanguageJavaApache License 2.0Apache-2.0

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Pulsar is a distributed pub-sub messaging platform with a very flexible messaging model and an intuitive client API.

Maven Central

Main features

  • Horizontally scalable (Millions of independent topics and millions of messages published per second)
  • Strong ordering and consistency guarantees
  • Low latency durable storage
  • Topic and queue semantics
  • Load balancer
  • Designed for being deployed as a hosted service:
    • Multi-tenant
    • Authentication
    • Authorization
    • Quotas
    • Support mixing very different workloads
    • Optional hardware isolation
  • Keeps track of consumer cursor position
  • REST API for provisioning, admin and stats
  • Geo replication
  • Transparent handling of partitioned topics
  • Transparent batching of messages

Documentation

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License

Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0