I didn't realize the write to disk was immediate (is that new in 0.8, with
requested acks enabled?).

I do think the OS will indeed reserve space in advance for data not yet
flushed to disk.  This seems to be true, at least, for xfs, which I have
more experience lately.

On Thu, Aug 15, 2013 at 11:30 AM, Jay Kreps <[EMAIL PROTECTED]> wrote:
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