Github user devriesb commented on the issue:
https://github.com/apache/nifi/pull/2416
@markap14 yes... under this somewhat unusual circumstance, my proposed
solution would sacrifice data for consistency. However, if alwaysSync is set
false, there isn't a guarantee of no loss anyway. So, we'd really be no worse
off than we are, except that the plug getting kicked out of the wall wouldn't
kill your repo.
Also, I fully agree that an implementation that DOES guarantee no loss of
CREATEs would be for the best. My proposal above doesn't address that in any
way. It lives inside the "all or nothing" guarantee of the current
(/previous?) WriteAheadFFR.
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