Json object to Parquet format using Java without converting to AVRO(Without using Spark, Hive, Pig,Impala)?

I have a scenario where to convert the messages present as Json object to Apache Parquet format using Java. Any samp...

How to copy and convert parquet files to csv?

I have access to a hdfs file system and can see parquet files with hadoop fs -ls /user/foo How can I copy those p...