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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
...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_64-2.4.8.tgz
4、分别在每台机器建立mongos 、config 、 shard1 、shard2、shard3 五个目录。
因为mongos不存储数据，只需要建立日...
What version of Visual Studio is Python on my computer compiled with?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How many files can I put in a directory?
...oc/man-pages/online/pages/man2/getdents.2.html rather than anything that's based on libc readdir() so you can specify the buffer size when reading directory entries from disk.
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How to TryParse for Enum value?
...
Based on .NET 4.5
Sample code below
using System;
enum Importance
{
None,
Low,
Medium,
Critical
}
class Program
{
static void Main()
{
// The input value.
string value = "Medium";
// ...
Why does visual studio 2012 not find my tests?
...'s solution — Clean your solution/project.
My unittest project targets x64. When I created the project it was originally targeting x86.
After switching to x64 all my unit tests disappeared.
I had to go to the Test Menu -> Test Setting -Default Processor Architecture -> x64.
They still di...
How can I find the version of the Fedora I use?
...
[Belmiro@HP-550 ~]$ uname -a
Linux HP-550 2.6.30.10-105.2.23.fc11.x86_64 #1 SMP Thu Feb 11 07:06:34 UTC 2010
x86_64 x86_64 x86_64 GNU/Linux
[Belmiro@HP-550 ~]$ lsb_release -a
LSB Version: :core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:deskt
op-3.1-amd64:desktop-3.1-noarch:des...
How can I find and run the keytool
...C:\cygwin\bin\openssl.exe" sha1 -binary | "C:\cygwin\bin\openssl.exe"
> base64
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Spring Test & Security: How to mock authentication?
...e a get mapped function to the route /foo/salute and we are testing a role based security with the @Secured annotation, although you can test @PreAuthorize and @PostAuthorize as well.
Let's create two tests, one to check if a valid user can see this salute response and the other to check if it's act...
Java: int array initializes with nonzero elements
...d that this bug is no longer available for public access in Oracle bug database. Unfortunately, I do not know for the reasons Oracle removed it from public access, but it is available in Google cache. Also, this bug has caught the attention of Redhat: the CVE identifiers CVE-2012-4420 (bugzilla) an...
“TypeError: (Integer) is not JSON serializable” when serializing JSON in Python?
...und my problem. The issue was that my integers were actually type numpy.int64.
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