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RE: Question on uniqueness of exclusive locks

From: Henrik Frystyk Nielsen <frystyk@w3.org>
Date: Wed, 05 May 1999 19:47:32 -0400
Message-Id: <>
To: ejw@ics.uci.edu, w3c-dist-auth@w3.org
At 15:22 5/4/99 -0700, Jim Whitehead wrote:

>Locks don't help you *detect* the lost update problem, they help you
>*prevent* the lost update problem.  Locks make it more difficult for lost
>updates to occur, but they don't help a client detect lost updates.  You'll
>still use If-Match with Etags to do lost update detection.

hi Jim,

yes, that was my conclusion as well - may cause problems if the content is
not mergeable or you want to support automated update procedures without
human intervention.

Henrik Frystyk Nielsen,
World Wide Web Consortium
Received on Wednesday, 5 May 1999 19:47:37 UTC

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