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廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...artbeat+NFS文件共享存储架构（主从模式）
http://blog.chinaunix.net/uid-25266990-id-3803277.html
DRBD使用gfs2,cman实现双主分布式文件存储方案
http://blog.sae.sina.com.cn/archives/3609
2.1搭建实验环境了
所需要的软件
REHL 6.4
drbd-8.4.6.tar....
Test if a property is available on a dynamic variable
...cification.
So you should actually try to access the member and catch an exception, if it fails:
dynamic myVariable = GetDataThatLooksVerySimilarButNotTheSame();
try
{
var x = myVariable.MyProperty;
// do stuff with x
}
catch (RuntimeBinderException)
{
// MyProperty doesn't exist
}
...
How to use string.replace() in python 3.x
The string.replace() is deprecated on python 3.x. What is the new way of doing this?
8 Answers
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What are the “standard unambiguous date” formats for string-to-date conversion in R?
...d/or abbreviations, as the conversion will depend on your locale (see the examples in ?strptime and read ?LC_TIME).
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How to Query an NTP Server using C#?
...got deleted (It was a link to a Google code search results that no longer exist), I figured I could answer this question for future reference :
public static DateTime GetNetworkTime()
{
//default Windows time server
const string ntpServer = "time.windows.com";
// NTP message size - 16 ...
OS X: equivalent of Linux's wget
How can I do an HTTP GET from a Un*x shell script on a stock OS X system? (installing third-party software is not an option, for this has to run on a lot of different systems which I don't have control on).
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Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
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I came up with a way using a list comprehension: df[[(len(x) < 2) for x in df['column name']]] but yours is much nicer. Thanks for your help!
– sjs
Dec 13 '12 at 4:17
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Split a string by spaces — preserving quoted substrings — in Python
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You want split, from the built-in shlex module.
>>> import shlex
>>> shlex.split('this is "a test"')
['this', 'is', 'a test']
This should do exactly what you want.
sh...
Python super() raises TypeError
... reason is that super() only operates on new-style classes, which in the 2.x series means extending from object:
>>> class X(object):
def a(self):
print 'a'
>>> class Y(X):
def a(self):
super(Y, self).a()
print 'b'
>>>...
How do I determine file encoding in OS X?
I'm trying to enter some UTF-8 characters into a LaTeX file in TextMate (which says its default encoding is UTF-8), but LaTeX doesn't seem to understand them.
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