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Date: Sat, 28 Mar 2009 20:57:34 +0300
Message-ID: <59b3eb370903281057k10dad324p27f40e11ddef04ee@mail.gmail.com>
Subject: Re: NIO.2
From: Earwin Burrfoot <earwin@gmail.com>
To: java-dev@lucene.apache.org
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> I think having async IO will be great, though I wonder how we would
> change Lucene to take advantage of it. =C2=A0It ought to gain us
> concurrency (eg we can score last chunk while we have an io request
> out to retrieve next chunk, of term docs / positions / etc.).
A presentation given above references Big*Buffers, including
MappedBigByteBuffer, which differ from their not-so-Big counterparts
in using long sizes/offsets. That means (woo-hoo!) a way better
MMapDirectory.

Everything else there is totally irrelevant to lucene. Okay, maybe
atomic file moves, but that part of Directory is long time deprecated
:)

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