title: what is a fastest way to remove nifi flowfile content?
body: <p>I have a workflow where I am getting json files as a response of rest api. I am getting approximately 100k files in a session. total size of all the files is 15GB. I have to save each file to file system, which i am doing. at the end of the process I have to wait for all the files to be present before I send a success message.</p>
  
  <p>Once I save the file in FS, I am calling notify+wait. but I dont need 15 gb data in flowfile anymore. So to release some space, I thought of using either replaceText or ModifyByte to clear content. so notify+wait runs smoothly. Total wait for this process is 3 hrs.</p>
  
  <p>But process is taking too long in both (replaceText or ModifyByte) case. </p>
  
  <p>Can you suggest, fastest way to clear flowfile data.I do not need any attributes too. so is thr a way I can abandon old flowfile and generate kb flowfile, midway?</p>
  
  <p>what i want is something like generateflowfile, but in middle, so for each of my existing flowfile, i can drop old one, and generate blank flowfile for notify and wait.</p>
  
  <p>Thanks </p>