EECS E6893 Big Data Analytics Spark Dataframe, Spark SQL, Hadoop metrics
EECS E6893 Big Data Analytics
Spark Dataframe, Spark SQL, Hadoop metrics
Gudmundur Jonasson gmj2122@columbia.edu
9/29/2023
1
Agenda
¡ñ Spark Dataframe
¡ñ Spark SQL
¡ñ Hadoop metrics
2
Spark Dataframe
¡ñ
¡ñ
¡ñ
¡ñ
An abstraction, an immutable distributed collection of data like RDD
Data is organized into named columns, like a table in DB
Create from RDD, Hive table, or other data sources
Easy conversion with Pandas Dataframe
3
Spark Dataframe: read from csv file
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Spark Dataframe: common operations
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