Because we had those gaps in our logs and couldn’t trust them outright, to calculate a list of impacted assets we leaned on our data warehouse to build a list of every segment we generated during the impact timeframe. The tricky part was scale; our storage metadata database has billions of rows and isn't built for full table scans, not to mention for the number of assets we needed to process. We reworked an existing tool we’d built for applying database updates in bulk, fed it that data and some carefully crafted queries, and set it to running.
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Последние новости
Европеец описал впечатления от дворца в России фразой «рот открылся и не закрывался»17:34。超级权重对此有专业解读
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用