Hi All,
I am a newbie to Spark/Hadoop.
I want to read a parquet file and a perform a simple word-count. Below is my
code, however I get an error:
Exception in thread "main" java.io.IOException: No input paths specified in
job
at
org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus(FileInputFormat.java:239)
at
org.apache.parquet.hadoop.ParquetInputFormat.listStatus(ParquetInputFormat.java:349)
at
org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getSplits(FileInputFormat.java:387)
at
org.apache.parquet.hadoop.ParquetInputFormat.getSplits(ParquetInputFormat.java:304)
at
org.apache.spark.rdd.NewHadoopRDD.getPartitions(NewHadoopRDD.scala:120)
Below is my code. I guess I am missing some core concepts wrt hadoop
InputFormats and making it working with spark. Coul d you please explain the
cause and solution to get this working/
-----------------------------code
snippet-----------------------------------------------------------------
JavaSparkContext sc = new JavaSparkContext(conf);
org.apache.hadoop.conf.Configuration mrConf = new Configuration();
mrConf.addResource(inputFile);
JavaPairRDD<String, String> textInputFormatObjectJavaPairRDD =
sc.newAPIHadoopRDD(mrConf, ParquetInputFormat.class, String.class,
String.class);
JavaRDD<String> words = textInputFormatObjectJavaPairRDD.values().flatMap(
new FlatMapFunction<String, String>() {
public Iterable<String> call(String x) {
return Arrays.asList(x.split(","));
}
});
long x = words.count();
--thanks!
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