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[Michael Leinartas <question197571@xxxxxxxxxxxxxxxxxxxxx>]

Question #197571 on Graphite changed:
https://answers.launchpad.net/graphite/+question/197571

    Status: Open => Answered

Michael Leinartas proposed the following answer:
Unfortunately there's no way to do this right now. The Whisper format
stores points as pairs of (<timestamp>,<value>) at predictable offsets.
None is returned when the timestamp stored doesn't match the timestamp
expected at that offset, i.e. that point was never written to.

The only way currently to reset these values would be to recreate the
whisper file and re-store the existing values, filtering out the ones
you dont want. This can be done (though painfully) with whisper-fetch.py
and whisper-update.py, or by scripting against the whisper Python
module.

See here for a bit more detail on the file format:
readthedocs.org/docs/graphite/en/latest/whisper.html

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