This will throw if you use a non-MonoidAggregator with an empty RDD requires a commutative Semigroup.
This will throw if you use a non-MonoidAggregator with an empty RDD requires a commutative Semigroup. To generalize to non-commutative, we need a sorted partition for T.
Apply an Aggregator to the values for each key with a custom Partitioner.
Apply an Aggregator to the values for each key with a custom Partitioner. requires a commutative Semigroup. To generalize to non-commutative, we need a sorted partition for T.
Apply an Aggregator to the values for each key.
Apply an Aggregator to the values for each key. requires a commutative Semigroup. To generalize to non-commutative, we need a sorted partition for T.
Apply an Aggregator to return a single value for the whole RDD.
Apply an Aggregator to return a single value for the whole RDD. If the RDD is empty, None is returned requires a commutative Semigroup. To generalize to non-commutative, we need a sorted partition for T.
Use the implicit Monoid to sum all items.
Use the implicit Monoid to sum all items. If RDD is empty, Monoid.zero is returned requires a commutative Monoid. To generalize to non-commutative, we need a sorted partition for T.
Use the implicit semigroup to sum by keys with a custom Partitioner.
Use the implicit semigroup to sum by keys with a custom Partitioner. requires a commutative Semigroup. To generalize to non-commutative, we need a sorted partition for T. Unfortunately we need to use a different name than sumByKey in scala 2.11
Use the implicit semigroup to sum by keys requires a commutative Semigroup.
Use the implicit semigroup to sum by keys requires a commutative Semigroup. To generalize to non-commutative, we need a sorted partition for T.
Use the implicit Semigroup to sum all items.
Use the implicit Semigroup to sum all items. If there are no items, None is returned. requires a commutative Monoid. To generalize to non-commutative, we need a sorted partition for T.
import com.twitter.algebird.spark.ToAlgebird to get the enrichment to do: myRdd.algebird: AlgebirdRDD[T]
This adds methods to Spark RDDs to use Algebird