May 2017
Intermediate to advanced
294 pages
7h 33m
English
Content preview from Apache Spark 2.x Cookbook
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How to do it...
To get started with the recipe, we first need to perform the following steps:
- Start spark-shell with the graphframes package:
$ spark-shell --packages graphframes:graphframes:0.2.0- spark2.0-s_2.11
If you are getting an error downloading slf4j, please use following command to download it explicitly:
$ mvn org.apache.maven.plugins:maven-dependency-plugin:2.4:get -DartifactId=slf4j-api -DgroupId=org.slf4j -Dversion=1.7.7
- Do the necessary imports:
scala> import org.graphframes._
- Load the vertex DataFrame:
scala> val vertices = spark.sqlContext.createDataFrame (List(("sc","Santa Clara","CA"),("fr","Fremont","CA"), ("sf","San Francisco","CA"))).toDF("id","city","state")
- Load the edge DataFrame:
scala> val edges ...
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