I have a question, is it possible to execute ETL for data using flume. To be more specific I have flume configured on spoolDir which contains CSV files and I want to convert those files into Parquet files before storing them into Hadoop. Is it possible ?
If it's not possible would you recommend transforming them before storing in Hadoop or transform them using spark on Hadoop?
I'd probably suggest using nifi to move the files around. Here's a specific tutorial on how to do that with Parquet. I feel nifi was the replacement for Apache Flume.
Flume partial answers:(Not Parquet) If you are flexible on format you can use an avro sink. You can use a hive sink and it will create a table in ORC format.(You can see if it also allows parquet in the definition but I have heard that ORC is the only supported format.)
You could likely use some simple script to use hive to move the data from the Orc table to a Parquet table. (Converting the files into the parquet files you asked for.)