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[程序员] 大家平时都是怎么找一些很抽象的 bug 的

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我一般靠日志和 debug 都能解决大部分 bug ，这些都没什么好说的，但是遇到一些非常规手段就能找到问题原因的 bug 就纯靠经验然后做假设再验证了。比方说之前遇到过一次数据库表的统计信息不准确导致 sql 不去走索引，后面又走索引了搞的我们查问题查的要死。 想听听大家的经验之谈，在可以分享的范围内细说，学习学习

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