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Re: [Commits] 949e2ae: MDEV-10315 - Online ALTER TABLE may get stuck in tdc_remove_table

To: maria-developers@xxxxxxxxxxxxxxxxxxx
From: Sergei Golubchik <serg@xxxxxxxxxxx>
Date: Wed, 21 Sep 2016 23:02:17 +0200
Cc: commits@xxxxxxxxxxx
In-reply-to: <20160701100905.2C3992C8C3E@mail.askmonty.org>
User-agent: Mutt/1.5.24 (2015-08-30)

Hi, Sergey!

On Jul 01, Sergey Vojtovich wrote:
> revision-id: 949e2aede909686053ab83ebf2741901be416a07 (mariadb-10.0.26-4-g949e2ae)
> parent(s): 0fdb17e6c3f50ae22eb97b6363bcbd8b0cd9e040
> committer: Sergey Vojtovich
> timestamp: 2016-07-01 13:57:18 +0400
> message:
> 
> MDEV-10315 - Online ALTER TABLE may get stuck in tdc_remove_table
> 
> There was race condition between online ALTER TABLE and statements performing
> TABLE_SHARE release without marking it flushed (e.g. in case of table cache
> overflow, SET @@global.table_open_cache, manager thread purgine table cache).
> 
> The reason was missing mysql_cond_broadcast().

ok to push

Regards,
Sergei
Chief Architect MariaDB
and security@xxxxxxxxxxx