Spark Code Analysis – SparkEnv


SparkContext is the main entry point of spark. It contains the interface of hdfs/tachyon etc.

SparkEnv is used to holds all the runtime environment objects for a running Spark instance

(either master or worker). It’s complete api includes here.


The ExecutorEnv is created by CoarseGrainedExecutorBackend (in standalone mode).

The DriverEnv is created by SparkContext.