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What data is stored in Ephemeral Storage of Amazon EC2 instance?

...aunch a new instance based on that AMI it will contain everything as it is now. Update: to clarify based on comments by mattgmg1990 and glenn bech: Note that there is a difference between "stop" and "terminate". If you "stop" an instance that is backed by EBS then the information on the root volu...
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Inheritance and Overriding __init__ in python

...le dated with respect to subclassing built-in classes. It looks like this nowadays: class FileInfo(dict): """store file metadata""" def __init__(self, filename=None): super(FileInfo, self).__init__() self["name"] = filename Note the following: We can directly subclass b...
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std::auto_ptr to std::unique_ptr

...ou cannot do a global find/replace because you can copy an auto_ptr (with known consequences), but a unique_ptr can only be moved. Anything that looks like std::auto_ptr<int> p(new int); std::auto_ptr<int> p2 = p; will have to become at least like this std::unique_ptr<int> p(n...
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Ruby send vs __send__

...th objects of any class, you need to use __send__ to be on the safe side. Now that leaves the question, why there is send and not just __send__. If there were only __send__ the name send could be used by other classes without any confusion. The reason for that is that send existed first and only la...
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Why should I use Restify?

... Corrigendum: this information is now wrong, keep scrolling! there was an issue with the script causing the Restify test to be conducted on an unintended route. This caused the connection to be kept alive causing improved performance due to reduced overhe...
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Renaming table in rails

... table (or SQLite or PostgreSQL, depending on what database you're using). Now, as it happens, ActiveRecord::ConnectionAdapters::MysqlAdapter is already accessible through Model.connection, so you should be completely able to do Model.connection.rename_table, using any model in your application. [/E...
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Converting a Java Keystore into PEM Format

... I think it's from JDK 6 onward. But yes, a PKCS #12 import is now supported. – erickson Oct 4 '10 at 6:11 add a comment  |  ...
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Why can't the tag contain a tag inside it?

As far as I know, this is right: 5 Answers 5 ...
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How to pass event as argument to an inline event handler in JavaScript?

... Passing ´event´ is the only way that I know, provided it is supported. Parsing ´this´ is of no use in this situation – Xotic750 May 6 '13 at 19:01 ...
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Multiple controllers with AngularJS in single page app

I want to know is how to use multiple controllers for a single page application. I have tried to figure it out and I've found questions very similar to mine, but there is just a ton of different answers solving a specific problem where you end up not using multiple controllers for a single page app....