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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
...不同就可以，看一下物理部署图：
架构搭好了，安装软件！
1、准备机器，IP分别设置为： 192.168.0.136、192.168.0.137、192.168.0.138。
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/mong...
Center Oversized Image in Div
...
Late to the game, but I found this method is extremely intuitive.
https://codepen.io/adamchenwei/pen/BRNxJr
CSS
.imageContainer {
border: 1px black solid;
width: 450px;
height: 200px;
overflow: hidden;
}
.imageHolder {
borde...
Unix command-line JSON parser? [closed]
...0]',
# 'Sunrise in Bryce Canyon, UT [1120x700] [OC]',
# ...
# 'Kariega Game Reserve, South Africa [3584x2688]',
# 'Valle de la Luna, Chile [OS] [1024x683]',
# 'Frosted trees after a snowstorm in Laax, Switzerland [OC] [1072x712]' ]
cat earthporn.json | underscore select '.data .title' | und...
NASM x86汇编入门指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...译并运行它，如果你有一些DOS汇编基础并能使用linux终端软件，你可以先看这篇教程。它简单讲解了linux和DOS汇编的不同，以至于不会让你混淆它们。
这里，我们使用NASM作为汇编编译工具，关于它的细节可以看附录C：参考资料...
How do you get the “object reference” of an object in java when toString() and hashCode() have been
...hing and query this property. Will be safe inside a single vm (assuming no game playing with classloaders to get around statics).
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实战低成本服务器搭建千万级数据采集系统 - 更多技术 - 清泛网 - 专注C/C++...
...是个密集写的操作，普通硬盘是否能够支持，mysql数据库软件能否支持，未来量突然增加如何应对？再就是评估存储空间，每天增量这么多需要耗费大量的存储资源，如何存放并且易扩展。
1、如何存储。正常来说我们上...
What is the best open XML parser for C++? [duplicate]
...r written in C++. It is aimed primarily at embedded environments, computer games, or any other applications where available memory or CPU processing power comes at a premium. RapidXML is licensed under Boost Software License and its source code is freely available.
Features
Parsing speed (includi...
How to get object size in memory? [duplicate]
I need to know how much bytes my object consumes in memory (in C#). for example how much my Hashtable , or SortedList , or List<String> .
...
How to determine if a string is a number with C++?
...ble trying to write a function that checks if a string is a number. For a game I am writing I just need to check if a line from the file I am reading is a number or not (I will know if it is a parameter this way). I wrote the below function which I believe was working smoothly (or I accidentally e...
Pickle or json?
... This is not a wide ranging benchmark, but I had an existing game where it was saving the levels using pickle (python3). I wanted to try jsonpickle for the human readable aspect - however the level saves were sadly much slower. 1597ms for jsonpickle and 88ms or regular pickle on level ...