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搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...ersion v2.4.6
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[initandlisten] waiting for connections on port 27017
[websvr] admin web console waiting for connections on port 28017
mongodb默认自带提供了web访问接口，通过 IP + 端口的形式可以访问。
http://192.168.0.1:28017/
二、主从模式。使用mysql数...
What's the best way to send a signal to all members of a process group?
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308
You don't say if the tree you want to kill is a single process group. (This is often the case ...
Where are my postgres *.conf files?
I have recently reinstalled postgresql 8.3 on my Ubuntu 8.04 after update. Used EnterpriseDB package. I can connect to the database locally, I see system DB postgres but I can't configure it because I can't find config files. Searched through entire hard drive and found only samples like pg_hba.con...
Numpy first occurrence of value greater than existing value
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207
This is a little faster (and looks nicer)
np.argmax(aa>5)
Since argmax will stop at the f...
How do I get an object's unqualified (short) class name?
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jeremysawesome
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answered Nov 11 '13 at 15:09
lonesomedaylonesomeday
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How to add a border just on the top side of a UIView
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202
I consider subclassing UIView and overriding drawRect overkill here. Why not add an extension o...
Drop columns whose name contains a specific string from pandas DataFrame
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Aligning text and image on UIButton with imageEdgeInsets and titleEdgeInsets
... already does so we simply need to adjust the spacing.
CGFloat spacing = 10; // the amount of spacing to appear between image and title
tabBtn.imageEdgeInsets = UIEdgeInsetsMake(0, 0, 0, spacing);
tabBtn.titleEdgeInsets = UIEdgeInsetsMake(0, spacing, 0, 0);
I also turned this into a category for ...
Can a Windows batch file determine its own file name?
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Yes.
Use the special %0 variable to get the path to the current file.
Write %~n0 to get just the filename without the extension.
Write %~n0%~x0 to get the filename and extension.
Also possible to write %~nx0 to get the filename and extension....
Calculating Pearson correlation and significance in Python
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201
You can have a look at scipy.stats:
from pydoc import help
from scipy.stats.stats import pears...