Spark fast Big Data analytics Learning Note * Initializing Sparkcontext (i)

Initialize Sparkcontext

1// initializing spark in Java 2 Import org.apache.spark.SparkConf; 3 Import Org.apache.spark.api.java.JavaSparkContext; 4 5 sparkconf conf=new sparkconf (). Setmaster ("local"). Setappname ("my App"); 6 // Cluster URL: This example is run on the local single machine locally; application name, you can find your app in the Cluster Manager user interface 7 javasparkcontext sc=new javasparkcontext (conf);

Turn off spark can use the Sparkcontext Stop () method, or exit the application directly, such as System.exit (0) or sys.exit ()

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Spark fast Big Data analytics Learning Note * Initializing Sparkcontext (i)