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Valid_referers nginx防止盗链

Posted by 夏泽民 Jun 27, 2022

Valid_referers 设置信任网站

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Shadowing

Posted by 夏泽民 Jun 27, 2022

go install golang.org/x/tools/go/analysis/passes/shadow/cmd/shadow@latest

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MySQL设置事务自动提交

Posted by 夏泽民 Jun 26, 2022

MySQL 默认开启事务自动提交模式，即除非显式的开启事务（BEGIN 或 START TRANSACTION），否则每条 SOL 语句都会被当做一个单独的事务自动执行。但有些情况下，我们需要关闭事务自动提交来保证数据的一致性。下面主要介绍如何设置事务自动提交模式。

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共享锁(S)、排他锁(X)、意向共享锁(IS)、意向排他锁(IX)的关系

Posted by 夏泽民 Jun 26, 2022

S锁：共享锁 加了S锁的记录，允许其他事务再加S锁，不允许其他事务再加X锁 select…lock in share mode X锁：排他锁 加了X锁的记录，不允许其他事务再加S锁或者X锁 select…for update

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librdkafka

Posted by 夏泽民 Jun 26, 2022

https://github.com/edenhill/librdkafka/

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