"Data Integration with Pentaho Kettle review"
kettle data integration, pdi
I will summarize it here. You can connect to relational databases like: mssql, mysql, and Oracle. It also connects to files like: txt, csv, xls (even though I don’t recommend it) and more complex files: xml, json. It can connect to API, web services and of course big data like Hive, Cassandra, MongoDB and more including bulk loads. I think Pentaho Kettle is versatile and has 95% of sources you will ever need.