I wasn't knowing you have a parquet file containing json data. Thanks Best Regards
On Mon, Apr 4, 2016 at 2:44 PM, Ramkumar V <ramkumar.c...@gmail.com> wrote: > Hi Akhil, > > Thanks for your help. Why do you put separator as "," ? > > I have a parquet file which contains only json in each line. > > *Thanks*, > <https://in.linkedin.com/in/ramkumarcs31> > > > On Mon, Apr 4, 2016 at 2:34 PM, Akhil Das <ak...@sigmoidanalytics.com> > wrote: > >> Something like this (in scala): >> >> val rdd = parquetFile.javaRDD().map(row => row.mkstring(",")) >> >> You can create a map operation over your javaRDD to convert the >> org.apache.spark.sql.Row >> <https://spark.apache.org/docs/1.4.0/api/java/org/apache/spark/sql/Row.html> >> to String (the Row.mkstring() Operation) >> >> Thanks >> Best Regards >> >> On Mon, Apr 4, 2016 at 12:02 PM, Ramkumar V <ramkumar.c...@gmail.com> >> wrote: >> >>> Any idea on this ? How to convert parquet file into JavaRDD<String> ? >>> >>> *Thanks*, >>> <https://in.linkedin.com/in/ramkumarcs31> >>> >>> >>> On Thu, Mar 31, 2016 at 4:30 PM, Ramkumar V <ramkumar.c...@gmail.com> >>> wrote: >>> >>>> Hi, >>>> >>>> Thanks for the reply. I tried this. It's returning JavaRDD<row> >>>> instead of JavaRDD<String>. How to get JavaRDD<String> ? >>>> >>>> Error : >>>> incompatible types: >>>> org.apache.spark.api.java.JavaRDD<org.apache.spark.sql.Row> cannot be >>>> converted to org.apache.spark.api.java.JavaRDD<java.lang.String> >>>> >>>> >>>> >>>> >>>> >>>> *Thanks*, >>>> <https://in.linkedin.com/in/ramkumarcs31> >>>> >>>> >>>> On Thu, Mar 31, 2016 at 2:57 PM, UMESH CHAUDHARY <umesh9...@gmail.com> >>>> wrote: >>>> >>>>> From Spark Documentation: >>>>> >>>>> DataFrame parquetFile = sqlContext.read().parquet("people.parquet"); >>>>> >>>>> JavaRDD<String> jRDD= parquetFile.javaRDD() >>>>> >>>>> javaRDD() method will convert the DF to RDD >>>>> >>>>> On Thu, Mar 31, 2016 at 2:51 PM, Ramkumar V <ramkumar.c...@gmail.com> >>>>> wrote: >>>>> >>>>>> Hi, >>>>>> >>>>>> I'm trying to read parquet log files in Java Spark. Parquet log files >>>>>> are stored in hdfs. I want to read and convert that parquet file into >>>>>> JavaRDD. I could able to find Sqlcontext dataframe api. How can I read if >>>>>> it is sparkcontext and rdd ? what is the best way to read it ? >>>>>> >>>>>> *Thanks*, >>>>>> <https://in.linkedin.com/in/ramkumarcs31> >>>>>> >>>>>> >>>>> >>>> >>> >> >
