Save a large Spark Dataframe as a single json file in S3

Question

Im trying to save a Spark DataFrame (of more than 20G) to a single json file in Amazon S3, my code to save the dataframe is like this :

dataframe.repartition(1)         


        

Answer 1

Try this

dataframe.write.format("org.apache.spark.sql.json").mode(SaveMode.Append).save("hdfs://localhost:9000/sampletext.txt");