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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
...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_64-2.4.8.tgz
#解压下载的压缩包
tar xvzf mongodb-linux-x86_64-2.4...
Unicode, UTF, ASCII, ANSI format differences
... MiscUtil library, should you ever want it. (It's not been very thoroughly tested, mind you.)
ASCII: Single byte encoding only using the bottom 7 bits. (Unicode code points 0-127.) No accents etc.
ANSI: There's no one fixed ANSI encoding - there are lots of them. Usually when people say "ANSI" they ...
Why aren't Java Collections remove methods generic?
...oyee {
public int yearsOfExperience;
// override equals()
}
class Test {
public static void main(String[] args) {
Collection<? extends Person> people = new ArrayList<Employee>();
// ...
// to remove the first employee with a specific name:
pe...
OpenLayers vs Google Maps? [closed]
...egrate several backends (If I understood correctly ^^ I'll have chances to test that in a couple of days, I hope ;-) )
– Pascal MARTIN
Aug 6 '09 at 20:23
1
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How do I generate a constructor from class fields using Visual Studio (and/or ReSharper)?
...at setters specified, even if temporarily, for the option to be available. Tested in VS2015 Community; not sure if this has been fixed in VS2017.
– Chris Sinclair
May 17 '17 at 15:47
...
Show AlertDialog in any position of the screen
...psicoder‘s answer, or the setting of wmlp doesn't take into effect by my test.
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Overloading Macro on Number of Arguments
... i << endl;
return 0;
}
Run:
User@Table 13:06:16 /c/T
$ g++ test_overloaded_macros.cpp
User@Table 13:16:26 /c/T
$ ./a.exe
counter = 3
counter = 4
abc = 0
abc = 1
abc = 2
abc = 3
i = 0
i = 1
i = 2
i = 100
i = 101
i = 102
Note that having both _OVR and _OVR_EXPAND may look redundant...
Autowiring two beans implementing same interface - how to set default bean to autowire?
...rvice.dao.jdbc.JdbcDeviceDao">
@Primary is also great for integration testing when you can easily replace production bean with stubbed version by annotating it.
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Print function log /stack trace for entire program using firebug
...
I accomplished this without firebug. Tested in both chrome and firefox:
console.error("I'm debugging this code.");
Once your program prints that to the console, you can click the little arrow to it to expand the call stack.
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A variable modified inside a while loop is not remembered
...hile loop and I am modifying only that particular copy. Here's a complete test program:
7 Answers
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