Type:
Priority:
Resolution:
Fixed
Affects Version/s:
10.2(EOL) , 10.3(EOL) , 10.4(EOL) , 10.5 , 10.6
The function DeadlockChecker::check_and_resolve() is being executed while continuously holding lock_sys.mutex . Moving the deadlock detection to lock_wait() (which was refactored in MDEV-24671 lock_sys.mutex between search iterations.
It may also be possible to avoid holding lock_sys.mutex altogether, and instead only use lock_sys.wait_mutex and various trx_t::mutex .
Transition
Time In Source Status
Execution Times
Open
In Progress
10h 43m
1
In Progress
Closed
5d 21h 44m
1
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Bug
Major
MDEV-24738 Improve the InnoDB deadlock checker
