Nifi: file not picked from input directory after first ime

[#1]

I have a nifi flow, working fine.  It picks file from a source directory, processes it, and file is deleted from source directory once picked up.

This all works fine first time. But later on, if I copy another file in source directory, that file is not picked up. I even stop all processors, clean any queue if not empty, and restart processors, but still file is not picked from input directory.

What causes this behaviour?

As a result, I have to stop-restart nifi, making it a bit cumbersome.

PS: Based on some google suggestions, I tried to delete flowfile_repository, but it doesn't allow so with message 'Device or resource busy'.

[#2 · Accepted solution]

Got the answer. First processor has listing strategy set to 'Tracking Timestamps', and copied file has older timestamp than the latest tracked one.

[#3]

@manishg 
Copying a file should have resulted in a new timestamp making it newer than the last file you previously listed.  However, moving a file typically does not change timestamps on the file.  My guess here is you moved a file into the directory instead of copy?

Matt

[#4]

I used docker copy command.

[#5]

 What processors are you using? List or Get files?

[#6]

Its ListFile.