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From:Sergei Golubchik Date:April 7 2011 9:29am
Subject:Re: bzr commit into mysql-5.1 branch (mayank.prasad:3640)
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Hi, Mayank!

On Apr 07, Mayank Prasad wrote:
> #At file:///home/mayank/mysql-tree/mydefects/5.1_11764633/ based on
> revid:sergey.glukhov@stripped
>  3640 Mayank Prasad	2011-04-07
>       Bug#11764633 : 57491: THD->MAIN_DA.IS_OK() ASSERT IN EMBEDDED
>      @ libmysqld/
>         Added code to set/reset 'error_handler_hook' to server/client
>         error handler accordingly.

This is better than the first patch.
But still incorrect, as I wrote in my last comment to the bug#57491.

There can be many threads executing queries in the embedded - all in
parallel. For example, mysqltest is doing that.

And different threads may be in different states, e.g. one thread in the
server code, while the other - in the client code.

Which means that the error_handler_hook needs to be set differently for
them. One global setting is not enough.

As a possible solution, one can use a flag in my_thread_var, set and
reset it when entering and leaving the server code, and test it in

bzr commit into mysql-5.1 branch (mayank.prasad:3640) Bug#11764633Mayank Prasad7 Apr
  • Re: bzr commit into mysql-5.1 branch (mayank.prasad:3640)Bug#11764633Sergei Golubchik7 Apr