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一个正则表达式引发的血案，让线上CPU100%异常！
source link: https://juejin.im/post/5b287ea6f265da596d04a324
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作者：陈树义 | 该文来自腾讯云+社区 陈树义的专栏 前几天线上一个项目监控信息突然报告异常，上到机器上后查看相关资源的使用情况，发现 CPU 利用率将近 100%。通过 Java 自带的线程 Dump 工具，我们导出了出问题的堆栈信息。 我们可以看到所有
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