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MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
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Fix for BUG#11704: "Found locks from different thread" warnings: The source of warnings was this scenario in OPTIMIZE: thr1: lock table with TL_WRITE_ONLY (InnoDB converts lock to TL_WRITE_ALLOW_WRITE) thr2: (UPDATE command) obtains a TL_WRITE_ALLOW_WRITE lock thr1: call mysql_lock_abort(). This function sets type of thr'1 lock to TL_WRITE_ONLY thr2: try to release thr2's lock. See two locks: TL_WRITE_ONLY, TL_WRITE_ALLOW_WRITE and produce a warning. The fix: Make InnoDB not to convert TL_WRITE_ONLY locks to TL_WRITE_ALLOW_WRITE in OPTIMIZE TABLE. |
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