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Message #07498
Re: comments on parallel applying
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To:
Jonas Oreland <jonaso@xxxxxxxxxx>
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From:
Kristian Nielsen <knielsen@xxxxxxxxxxxxxxx>
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Date:
Fri, 04 Jul 2014 14:09:58 +0200
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Cc:
MariaDB Developers <maria-developers@xxxxxxxxxxxxxxxxxxx>
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In-reply-to:
<CA+rQws776aRB4d-mCTDyNwuQfdErPJJ+7LOt=mMupGj4EWzWOA@mail.gmail.com> (Jonas Oreland's message of "Fri, 4 Jul 2014 14:05:04 +0200")
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User-agent:
Gnus/5.13 (Gnus v5.13) Emacs/23.4 (gnu/linux)
Jonas Oreland <jonaso@xxxxxxxxxx> writes:
> or perhaps a hybrid approach.
> master does "interesting" annotations
> slave takes decision based on annotations *and* own analysis
Agree.
There should be interesting possibilities to investigate.
One conplication for slave's own analysis is that for large transactions, it
may be necessary/desirable for the slave to start executing the first part of
a transaction before the last part has been received. A hybrid approach seems
well suited to provide sufficient information on the slave to make a good
decision in most cases.
- Kristian.
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