I am a beginner to Apache Nifi and i want to move a file in my local filesystem from one location to another. When I used the getFile processor to move files from the corresponding input directory and started it, the file disappeared. I haven't connected it to a putFile processor. What exactly is happening here. Where does the file go if it disappears from the local directory i had placed it in. Also how can i get it back?
GetFile has a property Keep Source File, if you have set to true, the file is not deleted after it has been copied from Input Directory to the Content Repository, default is false so this is the reason your files are deleted and you must have set success relation for auto termination otherwise GetFile won't run without any downstream connection. Your files have been discarded. Not sure whether this will work, but try the Data Provenance option and replay content.
Have a look at this - GetFile Official Doc and Replaying a FlowFile