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2012-06-25 - MapReduce auf Azure

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Der Map-Reduce Algorithmus begegnet uns bei vielen NoSQL Datenbanken. Wann immer große Datenmengen aggregiert werden, ist er das Mittel der Wahl. In einem Crashkurs wird die Theorie erläutert und gezeigt, wie in Dokumenten bei MongoDB, RavenDB und Hadoop gesucht wird. Mithilfe des MapReduce Modells von Hadoop werden Probleme wie das Durchzählen von Daten, Logfile-Analysen und Graphenanalysen demonstriert. Als Programmiersprache wird C# eingesetzt.

Publicada em: Tecnologia
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2012-06-25 - MapReduce auf Azure

  1. 1. 0067011990999991950051507004...9999999N9+00001+99999999999...0043011990999991950051512004...9999999N9+00221+99999999999...0043011990999991950051518004...9999999N9-00111+99999999999...0043012650999991949032412004...0500001N9+01111+99999999999...0043012650999991949032418004...0500001N9+00781+99999999999...(1950, 0)(1950, 22)(1950, -11)(1949, 111)(1949, 78)(key, value)
  2. 2. (1950, 0)(1950, 22)(1950, -11)(1949, 111)(1949, 78)(1949, [111, 78]) .(1950, [0, 22, -11])
  3. 3. (1949, 111)(1950, 22)(1949, [111, 78]) .(1950, [0, 22, -11])
  4. 4. (1949, 111)(1949, 78)(1950, 0)(1950, 20)(1950, 10)(1950, 25)(1950, 15)(1950, 0)(1949, 111)(1950, 20)(1950, 25)(1949, [111]) .(1950, [20, 25])
  5. 5. js> runJar(apps/hadoop-streaming.jar,-files "asv://server/Mapper.exe,asv://server/Reducer.exe"-mapper "Mapper.exe"-reducer "Reducer.exe"-input "inputFile"-output "outputFile")
  6. 6. 141.8.147.14 - - [22/Jun/2013:00:00:35 +0200] ↓"GET /catalog/images/footbag_freaks08freestyle2_medium.jpg ↓HTTP/1.1" 200 4379 "-" ↓"Mozilla/5.0 (compatible; YandexImages/3.0; +http://yandex.com/bots)"IP Address, Date, Request, Code, Size, Country, Referer, UserAgent141.8.147.14, […] , Mozilla/5.0{"IP Address" : "141.8.147.14","Date" : "[22/Jun/2013:00:00:35 +0200]","Request" : "GET /catalog/images/footbag_freaks08freestyle2_medium.jpg HTT"Code" : 200,"Size" : 4379,"Country" : "Germany","Referer" : "-",
  7. 7. http://highlyscalable.wordpress.com/2012/02/01/mapreduce-patterns/

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