From: Stewart Smith
Date: June 22 2012 1:17am
Subject: Re: purpose of thd_mark_transaction_to_rollback
List-Archive: http://lists.mysql.com/internals/38540
Message-Id: <871ul8rvql.fsf@flamingspork.com>
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On Thu, 21 Jun 2012 10:45:58 -0400, Zardosht Kasheff <zardosht@stripped> w=
rote:
> What I want to know is if our engine hits a deadlock, and we have NOT
> aborted the transaction internally, are we required to call
> thd_mark_transaction_to_rollback so that "xa end" properly then
> returns the right error. If so, this seems weird, as MySQL got the
> error code earlier, and MySQL should just ensure that "xa end" returns
> the right error without requiring the engine to make an additional
> call.

This is (rather unfortunately) a common thing inside MySQL in the engine
interface (e.g. ha_rnd_init())

=2D-=20
Stewart Smith

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