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From Jukka Zitting <jukka.zitt...@gmail.com>
Subject Re: [jr3 microkernel] Write skew
Date Thu, 01 Dec 2011 15:10:04 GMT

On Thu, Dec 1, 2011 at 4:02 PM, Michael Dürig <mduerig@apache.org> wrote:
> On 1.12.11 14:25, Jukka Zitting wrote:
>> If I understand the paper correctly, also this approach requires
>> synchronization to establish the serialization order of transactions.
> No I don't think so. What it does is, it cancels problematic transactions.
> Detecting these requires finding certain read-write conflicts between
> transactions.

But if there are two concurrent transactions, the commit of the other
one needs to wait until the first one has been processed before it can
complete the check against conflicts. Otherwise how can a conflicting
commit be made to fail?


Jukka Zitting

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