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数据库零停机滚动更新方案 - 李正浩的博客
数据库零停机滚动更新方案 - 李正浩的博客
背景在单体应用裸机部署的时代，一般情况下我们生产环境下要更新新功能，都是要把服务停机，把新代码打包部署到生产环境后再重新启动的，这样存在一个问题就是，存在停机时间，且回滚版本比较困难，对于一些用户量特别大的应用，比如淘宝、支付宝等
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