11 2020 档案

SpringCloud-Hystrix 报 could not acquire a semaphore for execution
摘要：今天SpringCloud-Hystrix 并发调用报could not acquire a semaphore for execution，配置以下设置，完美解决 hystrix: command: default: execution: isolation: strategy: SEMAPHOR 阅读全文
posted @ 2020-11-21 20:21 anakinf 阅读(4854) 评论(0) 推荐(0) 编辑
MYSQL获取更新行的主键ID(更新返回所在行)
摘要：1 SET @update_id := 0; 2 UPDATE some_table SET row = 'value', id = (SELECT @update_id := id) 3 WHERE some_other_row = 'blah' LIMIT 1; 4 SELECT @update 阅读全文
posted @ 2020-11-10 20:24 anakinf 阅读(2255) 评论(0) 推荐(0) 编辑

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