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Pravega is a distributed storage service offering a new storage abstraction called a Stream

Durable

Data is replicated and persisted to disk before being acknowledged.

Exactly once delivery

Producers use transaction to ensure data is written exactly once.

Infinite

Pravega is designed to store streams for infinite period of time. Size of stream is not bounded by the capacity of a node, but by the capacity of a cluster.

Elastic

Due to the variable nature of volume, variety and velocity of incoming and outgoing data streams, Pravega dynamically and transparently splits and merges segments of streams based on load and throughput.

Scalable

Pravega is designed to have no acceptable limitation on number of streams, segments, or even on stream length.

Resilient to Failures

Pravega self-detects failures and self-recovers from these cases, ensuring continuous flow of stream required by business continuity.

Global

Pravega replicates streams globally, enabling producers and consumers access streams across the globe and fail over among sites for high availability in the event of site wide disaster.