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b82abc7163
trx_t::autoinc_locks: Use small_vector<lock_t*,4> in order to avoid any dynamic memory allocation in the most common case (a statement is holding AUTO_INCREMENT locks on at most 4 tables or partitions). lock_cancel_waiting_and_release(): Instead of removing elements from the middle, simply assign nullptr, like lock_table_remove_autoinc_lock(). The added test innodb.auto_increment_lock_mode covers the dynamic memory allocation as well as nondeterministically (occasionally) covers the out-of-order lock release in lock_table_remove_autoinc_lock(). Reviewed by: Debarun Banerjee
6 lines
106 B
Text
6 lines
106 B
Text
[old]
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--innodb-autoinc-lock-mode=0
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[new]
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--innodb-autoinc-lock-mode=1
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[none]
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--innodb-autoinc-lock-mode=2
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