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My flow goes as follows.
1. Pick up 2 csv files from s3 using fetschs3object.
2. Zip files using mergecontent processor.
3. Pass the zip file from step2 to python script via stdin using executestreamcommand processor.(fails here)
4. Dump output to elasticsearch.
I have tested the python script with zip files and it executes fine outside nifi. But the same script throws below error when used in step 3 in Nifi(as explained above).
Could someone help me understand where I am going wrong?