I am trying to read from two large csv files with one FeatureReader for each file. Each FeatureReader is connected to a separate FeatureWriter to write to a Postgres database. I experience the problem that all data is cached first and then delivered to the writer, which will eventually exceed my memory. Since there are no transformers in between I do not now how to solve this issue.
I experienced this problems in the past when I used ordinary writers, but never with a FeatureWriter, so I guess it has something to do with the usage of FeatureReader.