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Pravega

Unlimited, ordered streams for durable real‑time data.

Pravega delivers a high‑performance, durable, elastic stream storage primitive with unlimited append‑only capacity, strict ordering, and Java‑compatible client libraries for real‑time data applications.

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Overview

Highlights

Unlimited append‑only streams with strict ordering
Durable, high‑performance storage primitive
Elastic scaling across distributed nodes
Java client compatible with Java 8 runtime

Pros

  • Apache 2.0 open‑source license
  • Strong consistency guarantees
  • Seamless Java ecosystem integration
  • Scalable for large‑volume data streams

Considerations

  • Server requires Java 11+, limiting older environments
  • Primary language support is Java only
  • Operational complexity in distributed setups
  • Ecosystem less mature than some legacy platforms

Managed products teams compare with

When teams consider Pravega, these hosted platforms usually appear on the same shortlist.

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Amazon Kinesis Data Streams

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Amazon MSK

Fully managed Apache Kafka on AWS.

Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.

Fit guide

Great for

  • Real‑time analytics pipelines needing ordered data
  • Event‑driven microservices with durable event logs
  • IoT sensor data ingestion with elastic scaling
  • Media platforms requiring unlimited append‑only streams

Not ideal when

  • Ultra‑low‑latency trading systems demanding sub‑millisecond response
  • Teams exclusively using non‑Java languages
  • Small, single‑node use cases where a heavyweight system is overkill
  • Environments lacking Java 11 support for the server

How teams use it

Fraud detection

Processes ordered transaction streams in real time to flag suspicious activity.

IoT telemetry collection

Ingests massive sensor data streams with automatic scaling and durable storage.

Event sourcing for microservices

Provides a reliable, ordered event log that drives state reconstruction and audit trails.

Live media streaming

Stores and serves continuous video/audio streams without size limits.

Tech snapshot

Java99%
Shell1%
Python1%
HCL1%
Dockerfile1%
Jinja1%

Tags

real-time-datadata-ingestionstreaming-datadistributed-storagestreaming

Frequently asked questions

What Java version is required to run Pravega?

Server components need Java 11 or newer; client libraries are built to run on Java 8.

How can I obtain Pravega artifacts?

Artifacts are available via Maven Central, GitHub Packages (with provided credentials), or JitPack.

Is Pravega licensed for commercial use?

Yes, it is released under the Apache 2.0 license.

Can I run Pravega locally for development?

Yes, the distribution includes scripts for local installation and testing.

How does Pravega ensure ordering of records?

Each stream is composed of ordered segments, guaranteeing strict ordering and consistency per segment.

Project at a glance

Stable
Stars
2,004
Watchers
2,004
Forks
406
LicenseApache-2.0
Repo age9 years old
Last commit11 months ago
Primary languageJava

Last synced 12 hours ago