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| author | Vladislav Vaintroub <wlad@montyprogram.com> | 2013-07-09 22:24:57 +0200 |
|---|---|---|
| committer | Vladislav Vaintroub <wlad@montyprogram.com> | 2013-07-09 22:24:57 +0200 |
| commit | 6bef652d91b9dc78af4794a87edfd760503d6d6d (patch) | |
| tree | a8e7e56681b1097ad7421c81ae0ef443da897eab /mysql-test/suite/vcol | |
| parent | 762d3cb8ede0b46f101f045d862ebb64f9148771 (diff) | |
| download | mariadb-git-6bef652d91b9dc78af4794a87edfd760503d6d6d.tar.gz | |
MDEV-4409 - Fix deadlock in MySQL key cache code, that can happen if there is a key cache resize running in parallel with an update.
If there is a key cache resize,a thread writing to key cache, will pause waiting until resize finishes. However this thread is won't be woken, because resize does not signaling waiters anymore. This is a regression introduced in WL#86(segmented MyISAM key cache)
The fix is to unconditionally release threads waiting on resize_queue when resize finishes, as in pre-WL#86 code.
Diffstat (limited to 'mysql-test/suite/vcol')
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