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How to get line count of a large file cheaply in Python?
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搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...台机器来做，如下图：
一台机器的一个数据表 Collection1 存储了 1T 数据，压力太大了！在分给4个机器后，每个机器都是256G，则分摊了集中在一台机器的压力。也许有人问一台机器硬盘加大一点不就可以了，为什么要分给四台...
Why am I getting a “401 Unauthorized” error in Maven?
Why am I getting a "401 Unauthorized" error in Maven?
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What is the maximum length of latitude and longitude? [closed]
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If latitude coordinate is reported as -6.3572375290155 or -63.572375290155 in decimal degrees then you could round-off and store up to 6 decimal places for 10 cm (or 0.1 meter) precision.
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The valid range of latitude in degrees is -90 and +90 for the southern and nort...
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for Se
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How to find all combinations of coins when given some dollar value
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Memcached下一站：HandlerSocket！ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...相应的安装过程再写一遍。
首先要确保已经安装了MySQL5.1以上的版本，我用的是Ubuntu操作系统，事先已经用apt安装了MySQL5.1.37，同时还需要相应的mysql_config，如果是Ubuntu的话，可以：
shell> aptitude install libmysqld-dev
注：如果你...
How to Apply Gradient to background view of iOS Swift App
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The Colors you're providing to gradient must be of type CGColor. So set your array of CGColor ...