[jira] [Updated] (SPARK-25293) Dataframe write to csv saves part files in outputDireotry/task-xx/part-xxx instead of directly saving in outputDir

["omkar puttagunta (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-25293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

omkar puttagunta updated SPARK-25293:
-------------------------------------
    Affects Version/s: 2.1.3

> Dataframe write to csv saves part files in outputDireotry/task-xx/part-xxx instead of directly saving in outputDir
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-25293
>                 URL: https://issues.apache.org/jira/browse/SPARK-25293
>             Project: Spark
>          Issue Type: Bug
>          Components: EC2, Java API, Spark Shell, Spark Submit
>    Affects Versions: 2.0.2, 2.1.3
>            Reporter: omkar puttagunta
>            Priority: Major
>
> [https://stackoverflow.com/questions/52108335/why-spark-dataframe-writes-part-files-to-temporary-in-instead-directly-creating]
> {quote}Running Spark 2.0.2 in Standalone Cluster Mode; 2 workers and 1 master node on AWS EC2
> {quote}
> Simple Test; reading pipe delimited file and writing data to csv. Commands below are executed in spark-shell with master-url set
> {{val df = spark.sqlContext.read.option("delimiter","|").option("quote","\u0000").csv("/home/input-files/") val emailDf=df.filter("_c3='EML'") emailDf.repartition(100).write.csv("/opt/outputFile/")}}
> After executing the cmds above in spark-shell with master url set.
> {quote}In {{worker1}} -> Each part file is created in\{{/opt/outputFile/_temporary/task-xxxxx-xxx/part-xxx-xxx}}
>  In {{worker2}} -> {{/opt/outputFile/part-xxx}} => part files are generated directly under outputDirectory specified during write.
> {quote}
> *Same thing happens with coalesce(100) or without specifying repartition/coalesce!!! Tried with Java also!*
> *_Quesiton_*
> 1) why {{worker1}} {{/opt/outputFile/}} output directory doesn't have {{part-xxxx}} files just like in {{worker2}}? why {{_temporary}} directory is created and {{part-xxx-xx}} files reside in the \{{task-xxx}}directories?



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