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* Fixed unit tests by making them clean up the SparkContext after use andMatei Zaharia2011-05-131-0/+2
| | | | | | thus clean up the various singletons (RDDCache, MapOutputTracker, etc). This isn't perfect yet (ideally we shouldn't use singleton objects at all) but we can fix that later.
* Rename bagel to spark.bagel and Pregel to BagelAnkur Dave2011-05-094-18/+18
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* Move shortest path and PageRank to bagel.examplesAnkur Dave2011-05-032-2/+7
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* Refactor and add aggregator supportAnkur Dave2011-05-034-44/+88
| | | | | | | | Refactored out the agg() and comp() methods from Pregel.run. Defined an implicit conversion to allow applications that don't use aggregators to avoid including a null argument for the result of the aggregator in the compute function.
* Package combiner functions into a traitAnkur Dave2011-05-034-66/+60
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* Add Bagel test suiteAnkur Dave2011-05-032-0/+65
| | | | | | Note: This test suite currently fails for the same reason that the Spark Core test suite fails: Spark currently seems to have a bug where any test after the first one fails.
* Clean up Bagel source and interfaceAnkur Dave2011-05-033-124/+99
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* Update ShortestPath to work with controllable partitioningAnkur Dave2011-05-031-9/+5
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* Clean up Pregel.run, add loggingAnkur Dave2011-05-031-26/+23
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* Add Bagel, an implementation of Pregel on SparkAnkur Dave2011-05-033-0/+390