Both Flume and Sqoop are meant for data movement, then what is the difference between them? Under what condition should I use Flume or Sqoop?
Sqoop and Flume both are meant to fulfill data ingestion needs but they serve different purposes. Apache Flume works well for streaming data sources that are generated continuously in hadoop environment such as log files from multiple servers whereas whereas Apache Sqoop works well with any RDBMS has JDBC connectivity.
Sqoop is actually meant for bulk data transfers between hadoop and any other structured data stores. Flume collects log data from many sources, aggregating it, and writing it to HDFS.
I came across this interesting infographic that explains the differences between the two apache projects Sqoop and Flume -
Difference between Sqoop and Flume