Dataframereader and null pointer exception












0














import org.apache.commons.io.IOUtils
import java.net.URL
import java.nio.charset.Charset
import org.apache.spark.sql.types._
import java.util.Calendar
import java.text.SimpleDateFormat
import org.apache.spark.sql._
import java.sql.Timestamp

val SRVY_DF=spark.read.format("jdbc")
.option("url","jdbc:teradata://teradata-dns-sysa.fg.rbc.com")
.option("driver","com.teradata.jdbc.TeraDriver")
.option("dbtable","DDWV21.SRVY")
.option("user","ph9au")
.option("password","H9aoserviceID")
.option("dbtable",s"(SELECT extract (year from CXC.CAL_DT) || cast ((cast(cxc.cal_dt as format 'mmm')) as char(3)) as prtn ,CXC.CAL_DT, CP.* FROM DL_2015_PMD_POC.CALL_PURPOSE CP INNER JOIN DL_2015_PMD_POC.MTRC_CALLXCALL CXC ON CP.INTCN_RSRC_ID=CXC.INTCN_RSRC_ID WHERE CAL_DT<='2016-10-31') as st")
.load()

-- not the above loads a dataframereader cause of the use of the .option(). Hence show() and printSchema() dont work on a dataframereader but will work if it was a dataframe

SRVY_DF.write.partitionBy("prtn").mode(SaveMode.Overwrite).parquet("hdfs:/prod/11323/app/H9A0/data/Call_Purpose/CP.parquet")


I am getting the same error , although i have used load.



When i change the code to call load explicitly , it works



val SRVY_DF=spark.read.format("jdbc")
.option("url","jdbc:teradata://teradata-dns-sysa.fg.rbc.com")
.option("driver","com.teradata.jdbc.TeraDriver")
.option("dbtable","DDWV21.SRVY")
.option("user","ph9au")
.option("password","H9aoserviceID")
.option("dbtable",s"(SELECT extract (year from CXC.CAL_DT) || cast ((cast(cxc.cal_dt as format 'mmm')) as char(3)) as prtn ,CXC.CAL_DT, CP.* FROM DL_2015_PMD_POC.CALL_PURPOSE CP INNER JOIN DL_2015_PMD_POC.MTRC_CALLXCALL CXC ON CP.INTCN_RSRC_ID=CXC.INTCN_RSRC_ID WHERE CAL_DT<='2016-10-31') as st")


val df2=SRVY_DF.load()


When i attempt to write it though it gives a java.lang.null pointer exception



df2.write.mode(SaveMode.Overwrite).parquet("hdfs:/prod/11323/app/H9A0/data/Call_Purpose/CP.parquet")









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    import org.apache.commons.io.IOUtils
    import java.net.URL
    import java.nio.charset.Charset
    import org.apache.spark.sql.types._
    import java.util.Calendar
    import java.text.SimpleDateFormat
    import org.apache.spark.sql._
    import java.sql.Timestamp

    val SRVY_DF=spark.read.format("jdbc")
    .option("url","jdbc:teradata://teradata-dns-sysa.fg.rbc.com")
    .option("driver","com.teradata.jdbc.TeraDriver")
    .option("dbtable","DDWV21.SRVY")
    .option("user","ph9au")
    .option("password","H9aoserviceID")
    .option("dbtable",s"(SELECT extract (year from CXC.CAL_DT) || cast ((cast(cxc.cal_dt as format 'mmm')) as char(3)) as prtn ,CXC.CAL_DT, CP.* FROM DL_2015_PMD_POC.CALL_PURPOSE CP INNER JOIN DL_2015_PMD_POC.MTRC_CALLXCALL CXC ON CP.INTCN_RSRC_ID=CXC.INTCN_RSRC_ID WHERE CAL_DT<='2016-10-31') as st")
    .load()

    -- not the above loads a dataframereader cause of the use of the .option(). Hence show() and printSchema() dont work on a dataframereader but will work if it was a dataframe

    SRVY_DF.write.partitionBy("prtn").mode(SaveMode.Overwrite).parquet("hdfs:/prod/11323/app/H9A0/data/Call_Purpose/CP.parquet")


    I am getting the same error , although i have used load.



    When i change the code to call load explicitly , it works



    val SRVY_DF=spark.read.format("jdbc")
    .option("url","jdbc:teradata://teradata-dns-sysa.fg.rbc.com")
    .option("driver","com.teradata.jdbc.TeraDriver")
    .option("dbtable","DDWV21.SRVY")
    .option("user","ph9au")
    .option("password","H9aoserviceID")
    .option("dbtable",s"(SELECT extract (year from CXC.CAL_DT) || cast ((cast(cxc.cal_dt as format 'mmm')) as char(3)) as prtn ,CXC.CAL_DT, CP.* FROM DL_2015_PMD_POC.CALL_PURPOSE CP INNER JOIN DL_2015_PMD_POC.MTRC_CALLXCALL CXC ON CP.INTCN_RSRC_ID=CXC.INTCN_RSRC_ID WHERE CAL_DT<='2016-10-31') as st")


    val df2=SRVY_DF.load()


    When i attempt to write it though it gives a java.lang.null pointer exception



    df2.write.mode(SaveMode.Overwrite).parquet("hdfs:/prod/11323/app/H9A0/data/Call_Purpose/CP.parquet")









    share|improve this question

























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      0







      import org.apache.commons.io.IOUtils
      import java.net.URL
      import java.nio.charset.Charset
      import org.apache.spark.sql.types._
      import java.util.Calendar
      import java.text.SimpleDateFormat
      import org.apache.spark.sql._
      import java.sql.Timestamp

      val SRVY_DF=spark.read.format("jdbc")
      .option("url","jdbc:teradata://teradata-dns-sysa.fg.rbc.com")
      .option("driver","com.teradata.jdbc.TeraDriver")
      .option("dbtable","DDWV21.SRVY")
      .option("user","ph9au")
      .option("password","H9aoserviceID")
      .option("dbtable",s"(SELECT extract (year from CXC.CAL_DT) || cast ((cast(cxc.cal_dt as format 'mmm')) as char(3)) as prtn ,CXC.CAL_DT, CP.* FROM DL_2015_PMD_POC.CALL_PURPOSE CP INNER JOIN DL_2015_PMD_POC.MTRC_CALLXCALL CXC ON CP.INTCN_RSRC_ID=CXC.INTCN_RSRC_ID WHERE CAL_DT<='2016-10-31') as st")
      .load()

      -- not the above loads a dataframereader cause of the use of the .option(). Hence show() and printSchema() dont work on a dataframereader but will work if it was a dataframe

      SRVY_DF.write.partitionBy("prtn").mode(SaveMode.Overwrite).parquet("hdfs:/prod/11323/app/H9A0/data/Call_Purpose/CP.parquet")


      I am getting the same error , although i have used load.



      When i change the code to call load explicitly , it works



      val SRVY_DF=spark.read.format("jdbc")
      .option("url","jdbc:teradata://teradata-dns-sysa.fg.rbc.com")
      .option("driver","com.teradata.jdbc.TeraDriver")
      .option("dbtable","DDWV21.SRVY")
      .option("user","ph9au")
      .option("password","H9aoserviceID")
      .option("dbtable",s"(SELECT extract (year from CXC.CAL_DT) || cast ((cast(cxc.cal_dt as format 'mmm')) as char(3)) as prtn ,CXC.CAL_DT, CP.* FROM DL_2015_PMD_POC.CALL_PURPOSE CP INNER JOIN DL_2015_PMD_POC.MTRC_CALLXCALL CXC ON CP.INTCN_RSRC_ID=CXC.INTCN_RSRC_ID WHERE CAL_DT<='2016-10-31') as st")


      val df2=SRVY_DF.load()


      When i attempt to write it though it gives a java.lang.null pointer exception



      df2.write.mode(SaveMode.Overwrite).parquet("hdfs:/prod/11323/app/H9A0/data/Call_Purpose/CP.parquet")









      share|improve this question













      import org.apache.commons.io.IOUtils
      import java.net.URL
      import java.nio.charset.Charset
      import org.apache.spark.sql.types._
      import java.util.Calendar
      import java.text.SimpleDateFormat
      import org.apache.spark.sql._
      import java.sql.Timestamp

      val SRVY_DF=spark.read.format("jdbc")
      .option("url","jdbc:teradata://teradata-dns-sysa.fg.rbc.com")
      .option("driver","com.teradata.jdbc.TeraDriver")
      .option("dbtable","DDWV21.SRVY")
      .option("user","ph9au")
      .option("password","H9aoserviceID")
      .option("dbtable",s"(SELECT extract (year from CXC.CAL_DT) || cast ((cast(cxc.cal_dt as format 'mmm')) as char(3)) as prtn ,CXC.CAL_DT, CP.* FROM DL_2015_PMD_POC.CALL_PURPOSE CP INNER JOIN DL_2015_PMD_POC.MTRC_CALLXCALL CXC ON CP.INTCN_RSRC_ID=CXC.INTCN_RSRC_ID WHERE CAL_DT<='2016-10-31') as st")
      .load()

      -- not the above loads a dataframereader cause of the use of the .option(). Hence show() and printSchema() dont work on a dataframereader but will work if it was a dataframe

      SRVY_DF.write.partitionBy("prtn").mode(SaveMode.Overwrite).parquet("hdfs:/prod/11323/app/H9A0/data/Call_Purpose/CP.parquet")


      I am getting the same error , although i have used load.



      When i change the code to call load explicitly , it works



      val SRVY_DF=spark.read.format("jdbc")
      .option("url","jdbc:teradata://teradata-dns-sysa.fg.rbc.com")
      .option("driver","com.teradata.jdbc.TeraDriver")
      .option("dbtable","DDWV21.SRVY")
      .option("user","ph9au")
      .option("password","H9aoserviceID")
      .option("dbtable",s"(SELECT extract (year from CXC.CAL_DT) || cast ((cast(cxc.cal_dt as format 'mmm')) as char(3)) as prtn ,CXC.CAL_DT, CP.* FROM DL_2015_PMD_POC.CALL_PURPOSE CP INNER JOIN DL_2015_PMD_POC.MTRC_CALLXCALL CXC ON CP.INTCN_RSRC_ID=CXC.INTCN_RSRC_ID WHERE CAL_DT<='2016-10-31') as st")


      val df2=SRVY_DF.load()


      When i attempt to write it though it gives a java.lang.null pointer exception



      df2.write.mode(SaveMode.Overwrite).parquet("hdfs:/prod/11323/app/H9A0/data/Call_Purpose/CP.parquet")






      scala dataframe nullpointerexception






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      asked Nov 22 at 19:22









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