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Samenvatting_spark Databanken 3
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  • Course
  • Datadanken 3: Spark
  • Institution
  • Hogeschool Gent (HoGent)

Samenvatting van de workshop Spark. Deze mag gebruikt worden tijdens het openboek examen van databanken 3

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Document information

  • January 7, 2020
  • 10
  • 2019/2020
  • Summary

Subjects

  • informatica
  • toegepaste informatica
  • databanken 3
  • spark
  • workshop
  • databases
  • databases 3
  • hogent
  • hogent

Written for

  • Hogeschool Gent (HoGent)
  • Toegepaste informatica
  • Datadanken 3: Spark
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DATABANKEN 3: SPARK




Lincy De Groote

, What is Big Data?
The three V’s of Big Data
 Velocity:
o Snelheid is belangrijk
o We willen weten op welk exact moment een traffic jam voorkomt
 Variaty:
o Data kan van alle types zijn: video, geluid, foto’s en tekst data
 Volume:
o De kwantiteit van de gegenereerde en opgeslagen data
o De grootte bepaald of het big data is of niet

What is Hadoop?
An open source software framework dedicated for processing big
data
 Apache Hadoop is een open source software framework toegewijd om
o Distributed (gedistribueerd)
o Fault-tolerant (fout-tolererend)
 Opslag en proccesing van big data gebruik makend van MapReduce protocol
 Het runt een cluster op computers die bestaan uit commodity hardware






Hadoop cluster terminology
 Een cluster: is een groep van computers die samen werken
o Zorgt voor data opslag, data processing en recource management
 Een node: is een individuele computer in een cluster
o Master nodes managen de distributie van het werk en de data naar werker nodes
 Een daemon: is een programma die runt op een node
o Elke daemon levert iets anders op een cluster

Distributed processing with hadoop

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