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What is copy-on-write?

... also used in maintenance of instant snapshot on database servers like Microsoft SQL Server 2005. Instant snapshots preserve a static view of a database by storing a pre-modification copy of data when underlaying data are updated. Instant snapshots are used for testing uses or moment-dependent repor...
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What is the difference between a directory and a folder?

Most people use the terms "folder" and "directory" interchangeably. From a programmer point of view, is there a difference, and if so, what is it? Does it depend on the OS, or is there a broad, general consensus? This at least suggests that there is a difference. ...
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How to configure logging to syslog in Python?

... Note that, as the doc says, '/var/run/syslog' is the Right Thing on OS X. – offby1 Feb 14 '14 at 20:55 3 ...
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Are parallel calls to send/recv on the same socket valid?

... POSIX defines send/recv as atomic operations, so assuming you're talking about POSIX send/recv then yes, you can call them simultaneously from multiple threads and things will work. This doesn't necessarily mean that they'll ...
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Run a Java Application as a Service on Linux

I have written a Java server application that runs on a standard virtual hosted Linux solution. The application runs all the time listening for socket connections and creating new handlers for them. It is a server side implementation to a client-server application. ...
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What are the -Xms and -Xmx parameters when starting JVM?

...amework my computer crashes because it's taking up too much memory. Is it possible that on OpenJDK there is no hard limit on the memory by default? – Christophe De Troyer May 26 '14 at 13:33 ...
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Run a batch file with Windows task scheduler

... I'm aware the original post is quite old. But this post was among the top link in google search when I was trying the answer for this problem. So I think I'd like to share the findings. Just in case, anybody including myself is forgotting this. ...
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Haskell offline documentation?

What are the possibilities, if any, for getting offline docs for Haskell core libraries (and maybe more)? 9 Answers ...
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Visual Studio 64 bit?

... For numerous reasons, No. Why is explained in this MSDN post. First, from a performance perspective the pointers get larger, so data structures get larger, and the processor cache stays the same size. That basically results in a raw speed hit (your mileage may vary). So you start...
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How to save username and password with Mercurial?

...username and password - handy for managing different username/password combos with different sites (prefix) You can also only specify the user name, then you will just have to type your password when you push. I would also recommend to take a look at the keyring extension. Because it stores the pa...