09 2022 档案

mysql 手动加表锁
摘要：mysql 手动加表锁 lock tables purchase_minor_demand write; delete from purchase_minor_demand where id = 17; unlock tables; 阅读全文
posted @ 2022-09-27 09:12 java架构师1 阅读(26) 评论(0) 推荐(0) 编辑
mysql too many connections
摘要：mysql too many connections -- 最大连接数 show variables like 'max_connections'; -- 最大返回数 Max_used_connections/max_connections * 100% 应该要大于10% show global s 阅读全文
posted @ 2022-09-26 10:12 java架构师1 阅读(18) 评论(0) 推荐(0) 编辑

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