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MapReduce

MapReduce is a programming model and an associated implementation for processing and generating big data sets with a parallel and distributed algorithm on a cluster.

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Overview

Logical view

Dataflow

Theoretical background

Distribution and reliability

Uses

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Implementations of MapReduce

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Map overview Semantic statistics

MapReduce

Nodes99
Edges98
Triples81
Avg. degree1.98
Density0.020202
Components1

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MapReduce

Top relations

related to Lack of novelty · 17
MapReduce → Apache Hive, B-trees, Bigtable, CODASYL, David DeWitt, DeWitt, Greg Jorgensen, HBase, Jorgensen, MapReduce's, Michael Stonebraker, Pig, PigLatin, Sawzall, Stonebraker's, Teradata, They
related to Uses · 10
MapReduce → At Google, Development, FlumeJava, Google, Google's, It, MillWheel, Moreover, Percolator, World Wide Web
related to Distribution and reliability · 8
MapReduce → Because, Each, Google File System, If, Individual, The, This, When
related to Performance considerations · 8
MapReduce → Additional, Combiner, Communication, In, Map, Reduce, The, When
related to background · 5
MapReduce → Algebird, In, Map/Reduce, Properties, Scala
related to Dataflow · 4
MapReduce → Map, Reduce, Software, The
related to Examples · 3
MapReduce → Here, The, Thus
related to Logical view · 3
MapReduce → Map, Reduce, The Map
related to Partition function · 3
MapReduce → Each Map, It, The
is a · 1
MapReduce → programming model and an associated implementation for processing and generating big data sets with a parallel and distributed algorithm on a cluster.A MapReduce program is comp…

Important terminology Word statistics

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Important terminology

reduce map data key distributed function framework operation output input one system processing parallel value would use google programming values

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
MapReduceis aprogramming model and an associated implementation for processing and generating big data sets with a parallel and distributed algorithm on a cluster.A MapReduce program is comp…0.90text
the Combiner function can help to reduce the amount of data written to diskinstance ofAdditional modules0.80text
and transmitted over the networkinstance ofAdditional modules0.80text
Percolatorinstance ofDevelopment at Google has since moved on to technologies0.80text
FlumeJavainstance ofDevelopment at Google has since moved on to technologies0.80text
MillWheel that offer streaming operationinstance ofDevelopment at Google has since moved on to technologies0.80text
updates instead of batch processinginstance ofDevelopment at Google has since moved on to technologies0.80text
to allow integratinginstance ofDevelopment at Google has since moved on to technologies0.80text
B-treesinstance ofMapReduce's use of input files and lack of schema support prevents the performance improvements enabled by common database system features0.80text
hash partitioninginstance ofMapReduce's use of input files and lack of schema support prevents the performance improvements enabled by common database system features0.80text
though projects such as Piginstance ofMapReduce's use of input files and lack of schema support prevents the performance improvements enabled by common database system features0.80text
Hadoopinstance ofmay cover use of MapReduce by open source software0.80text

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