摘要：
简单的介绍一下，我使用MongoDB的场景。 我们现在的物联网环境下，有部分数据，采样频率为2000条记录/分钟，这样下来一天24*60*2000=2880000约等于300万条数据，以后必然还会增加。之前数据库使用的是mssql，对于数据库的压力很大，同时又需要保证历史查询的响应速度，这种情况下， 阅读全文
It's not who you are underneath, it's what you do that defines you
Brick walls are there for a reason :they let us prove how badly we want things
It's not who you are underneath, it's what you do that defines you
Brick walls are there for a reason :they let us prove how badly we want things