I am experimenting with two files and trying to generate 1 parquet file.
public class CompactParquetGenerator implements Serializable {
public void generateParquet(JavaSparkContext sc, String jsonFilePath,
String parquetPath) {
//int MB_128 = 128*1024*1024;
//sc.hadoopConfiguration().setInt("dfs.blocksize", MB_128);
//sc.hadoopConfiguration().setInt("parquet.block.size", MB_128);
JavaSQLContext sqlCtx = new JavaSQLContext(sc);
JavaRDD<Claim> claimRdd = sc.textFile(jsonFilePath).map(new
StringToClaimMapper()).filter(new NullFilter());
JavaSchemaRDD claimSchemaRdd = sqlCtx.applySchema(claimRdd,
Claim.class);
claimSchemaRdd.coalesce(1)
claimSchemaRdd.saveAsParquetFile(parquetPath);
}
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