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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
...2.168.0.138。
2、分别在每台机器上建立mongodb分片对应测试文件夹。
#存放mongodb数据文件
mkdir -p /data/mongodbtest
#进入mongodb文件夹
cd /data/mongodbtest
3、下载mongodb的安装程序包
wget http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2....
Remove all special characters from a string [duplicate]
.../u' => 'I',
'/[íìîï]/u' => 'i',
'/[éèêë]/u' => 'e',
'/[ÉÈÊË]/u' => 'E',
'/[óòôõºö]/u' => 'o',
'/[ÓÒÔÕÖ]/u' => 'O',
'/[úùûü]/u' => 'u',
'/[ÚÙÛÜ]/u' =&...
MongoDB数据导出导入工具:mongoexport,mongoimport - 大数据 & AI - 清泛...
...ongoexport工具可以把一个collection导出成JSON格式或CSV格式的文件,可以通过参数指定导出的数据项;mongoimport将相应文件导入到collection中。一、导出工具mongoexport
Mongodb中的mongoexport工具可以把一个collection导出成JSON格式或CSV格式的...
Excel to CSV with UTF8 encoding [closed]
...hat has some Spanish characters (tildes, etc.) that I need to convert to a CSV file to use as an import file. However, when I do Save As CSV it mangles the "special" Spanish characters that aren't ASCII characters. It also seems to do this with the left and right quotes and long dashes that appear...
BIO与NIO、AIO的区别(这个容易理解) - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...塞的,而采用select函数有个好处就是它可以同时监听多个文件句柄,从而提高系统的并发性!
异步非阻塞IO:在此种模式下,用户进程只需要发起一个IO操作然后立即返回,等IO操作真正的完成以后,应用程序会得到IO操作完成的...
How does Stack Overflow generate its SEO-friendly URLs?
...to test for (sb.Length > = maxlen).
– Henrik Stenbæk
Mar 29 '12 at 13:14
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How do I sort unicode strings alphabetically in Python?
...->collating_element mapping. It does not handle things like expansions (æ sorted as "ae"), French accent sorting (letters sorted left-to-right, but accents right-to-left), rearrangement and probably a few more. Details here (full UCA feature set): unicode.org/reports/tr10 and here (locale collat...
简单谈谈软件配置管理 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...
c)数据(包含在程序内部或外部)
d)项目管理的有关文件、信息记录等
在实际项目中,我们如何识别配置项?
a)《项目过程裁剪定义》中要产出的工作产品
b)源代码、可执行程序
c)数据(包含在程序内部或外部)
d...
How to make unicode string with python3
...te & vanilla cream\ud83d\ude0d\ud83d\ude0d❤️ Present Moment Cafè in St.Augustine❤️❤️ '
new_new_str = new_str.encode('utf-16', 'surrogatepass').decode('utf-16')
print(new_new_str)
>>> 'raw vegan chocolate cocoa pie w chocolate & vanilla cream????????❤️ Presen...
Remove accents/diacritics in a string in JavaScript
...
With ES2015/ES6 String.prototype.normalize(),
const str = "Crème Brulée"
str.normalize("NFD").replace(/[\u0300-\u036f]/g, "")
> "Creme Brulee"
Two things are happening here:
normalize()ing to NFD Unicode normal form decomposes combined graphemes into the combination of simple on...
