Ah, thanks for the background! Whether or not you will have issues on fetching, replacing, and putting will depend on how big the file is, and how often this logic is happening. If it is 1200 iteration each time the logic runs and the logic runs every 24 hours then you will be fine. If it runs every 1 second then you may be hurting with this solution 🙂 A possibly better approach may be to use the ExecuteScript processor and write a simple Groovy or Python script that updates the file for you. Or you could potentially look at implementing some logic that would allow you to update the file only once at the end, if possible, instead of every one of the 1200 iterations, etc.
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