What's the best way to store time series data of thousands (but could become millions soon) real-world hardware sensors? The sensors itself are different, some just capture one variable, some up to a dozen. I need to store these values every hour, and I don't want to delete data that is older than x, i.e. the data will just keep growing. What's the best way to store time series data o
阅读背景：
有效存储时间序列数据：mySQL或平面文件？许多表（或文件）或具有WHERE条件的查询？
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