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搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...，那我们也按照这个数量配置测试。
1、准备两台机器 192.168.1.136、192.168.1.137、192.168.1.138。 192.168.1.136 当作副本集主节点，192.168.1.137、192.168.1.138作为副本集副本节点。
2、分别在每台机器上建立mongodb副本集测试文件夹
#存...
Is there a decorator to simply cache function return values?
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207
Starting from Python 3.2 there is a built-in decorator:
@functools.lru_cache(maxsize=100, typ...
data.table vs dplyr: can one do something well the other can't or does poorly?
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+200
We need to cover at least these aspects to provide a comprehensive answer/comparison (in no particular order of importance): Speed, ...
What is a lambda expression in C++11?
...o write something like the following, to keep the functor local:
void func2(std::vector<int>& v) {
struct {
void operator()(int) {
// do something
}
} f;
std::for_each(v.begin(), v.end(), f);
}
however this is not allowed, f cannot be passed to a template function i...
Code for decoding/encoding a modified base64 URL
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edited Aug 4 '09 at 21:36
answered Aug 4 '09 at 17:06
...
Complex nesting of partials and templates
...ry nav -->
<a href="#/page/1">Page 1</a>
<a href="#/page/2">Page 2</a>
<a href="#/page/3">Page 3</a>
<!-- display the view -->
<div ng-view>
</div>
Directive for the sub navigation
app.directive('mySubNav', function(){
return {
...
Javascript: Round up to the next multiple of 5
I need a utility function that takes in an integer value (ranging from 2 to 5 digits in length) that rounds up to the next multiple of 5 instead of the nearest multiple of 5. Here is what I got:
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CSS: background image on background color
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291
You need to use the full property name for each:
background-color: #6DB3F2;
background-image:...
Bash conditionals: how to “and” expressions? (if [ ! -z $VAR && -e $VAR ])
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edited Dec 22 '14 at 22:36
answered Jan 19 '12 at 2:16
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How to compare type of an object in Python?
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246
isinstance()
In your case, isinstance("this is a string", str) will return True.
You may al...