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                對于高并發工作負載,在Innodb中按主鍵順序插入可能會造成明顯的爭用.主鍵的上界會成為`"熱點"` .因為所有的插入都發生在這里,所以并發插入可能導致間隙鎖競爭.另一個熱點可能是AUTO_INCREMENT鎖機制.如果遇到這個問題,則可能考慮重新設計表或者應用,或者更改innodb_autoinc_lock_mode配置.如果你的服務器版本還不支持,可以升級到最新版
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