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廉价共享存储解决方案2-drbd+cman+gfs2 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...aliyun.com/repo/Centos-6.repo 把$releasever 全部改为6 yum clean all&yum makecache 3、安装DRBD 请参考 http://user.qzone.qq.com/58740020/blog/1448855653 3.1、不一样的地方 同步以上操作或文件,并初始化资源及启动服务 drbdadm create-md r0 service d...
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How to change Rails 3 server default port in develoment?

... First - do not edit anything in your gem path! It will influence all projects, and you will have a lot problems later... In your project edit script/rails this way: #!/usr/bin/env ruby # This command will automatically be run when you run "rails" with Rails 3 gems installed from the root...
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SQL Server: Filter output of sp_who2

... based on http://web.archive.org/web/20080218124946/http://sqlserver2005.databases.aspfaq.com/how-do-i-mimic-sp-who2.html i have created following script , which resolves finding active connections to any datbase using DMV this works under s...
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Get names of all keys in the collection

I'd like to get the names of all the keys in a MongoDB collection. 21 Answers 21 ...
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How to open link in new tab on html?

... The special targets all start with an underscore. blank would be the name of a frame or window. It may seem to work, because a new window or tab will probably be opened when none exists with the name 'blank', but a second click on the link shoul...
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How to check if object has any properties in JavaScript?

...d Apr 20 '10 at 6:49 Daniel VassalloDaniel Vassallo 301k6666 gold badges475475 silver badges424424 bronze badges ...
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How do I manage MongoDB connections in a Node.js web application?

...there are multiple database.. should i open a connection for each database all together. If not, Is it OK to open and close when required? – Aman Gupta Oct 25 '16 at 14:19 ...
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How to fix: “UnicodeDecodeError: 'ascii' codec can't decode byte”

...e source it's difficult to know the root cause, so I'll have to speak generally. UnicodeDecodeError: 'ascii' codec can't decode byte generally happens when you try to convert a Python 2.x str that contains non-ASCII to a Unicode string without specifying the encoding of the original string. In bri...
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Using Spring MVC Test to unit test multipart POST request

...n) { this.json = json; } } } and a unit test @WebAppConfiguration @ContextConfiguration(classes = WebConfig.class) @RunWith(SpringJUnit4ClassRunner.class) public class Example { @Autowired private WebApplicationContext webApplicationContext; @Test publi...
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Can't find the 'libpq-fe.h header when trying to install pg gem

...on Rails 3.1 pre version. I like to use PostgreSQL, but the problem is installing the pg gem. It gives me the following error: ...