Borealis Stream Processing

"Borealis is a distributed stream processing engine that is being developed at Brandeis University, Brown University, and MIT. Borealis builds on our previous efforts in the area of stream processing: Aurora and Medusa."

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• A Stream Processing Engine that provides the core low-latency stream processing functionality with a rich set of stream-oriented operators.

• A Coordinator that deploys a network of cooperating Borealis stream processing engines, distributes query processing across multiple machines, and maintains integrity and correct operation as the network is dynamically mutated.

• A Load Manager that monitors run-time load and dynamically moves operators across machines to improve performance.

• A Load Shedder that detects and eliminates CPU overload from multiple machines by selectively dropping tuples in a coordinated fashion.

• A Fault Tolerance module that runs redundant query replicas to deal with various failure modes and achieve high availability.

• A Revision Processing mechanism that process corrections of erroneous input tuples by generating corrections of previously output query results.

Subject:

Stream Processing