Hi how do we create DataFrame from a binary file stored in HDFS? I was
thinking to use
JavaPairRDD<String,PortableDataStream> pairRdd =
javaSparkContext.binaryFiles("/hdfs/path/to/binfile");
JavaRDD<PortableDataStream> javardd = pairRdd.values();
I can see that PortableDataStream has method called toArray which can
convert into byte array I was thinking if I have JavaRDD<byte[]> can I call
the following and get DataFrame
DataFrame binDataFrame = sqlContext.createDataFrame(javaBinRdd,Byte.class);
Please guide I am new to Spark. I have my own custom format which is binary
format and I was thinking if I can convert my custom format into DataFrame
using binary operations then I dont need to create my own custom Hadoop
format am I on right track? Will reading binary data into DataFrame scale?
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