Hello All,
In my company we are worried about data lineage. Big files can be split into smaller files (block size) inside HDFS, and smaller files can be aggregated into larger files. We want to have some kind of control regarding data lineage and the ability to map source files to files in HDFS. Using interceptors we can add various keys like timestamp, static, file header etc. After a file has been processed and inserted into HDFS, do those keys still exist and viewable if I choose to cat the file in HADOOP? (I did cat the files and didn't see any of the keys) Or the keys only exist during the process and are not saved into the file. Alternatively is it possible to append those keys into the file using Flume's built in component? I appreciate the help, Tzur
