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How do you add swap to an EC2 instance?

...something higher. To enable it by default after reboot, add this line to /etc/fstab: /var/swap.1 swap swap defaults 0 0 share | improve this answer | foll...
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Proper Repository Pattern Design in PHP?

...is the interface: interface AllUsersQueryInterface { public function fetch($fields); } Query Object Implementation This is where we can use a data mapper again to help speed up development. Notice that I am allowing one tweak to the returned dataset—the fields. This is about as far as I wa...
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How to use Elasticsearch with MongoDB?

...//downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb.list Get the 10gen package. sudo apt-get install mongodb-10gen Then pick your version if you don't want the most recent. If you are setting your environment up on a windows 7 or 8 machine s...
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Can unit testing be successfully added into an existing production project? If so, how and is it wor

...g the bar for all newly written code added to your project. Keep improving etc... Now, reading in between the lines here I get the impression that this is coming from the mindset of "perfection as an excuse for not taking action". A better mindset is to focus on self trust. So as you may not know h...
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Does Django scale? [closed]

...mance improvements, ordinary database design and implementation (indexing, etc.), ordinary firewall performance improvements, etc. What we do measure is our load test laptops struggling under the insane workload of 15 processes running 16 concurrent threads of requests. ...
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Is the sizeof(some pointer) always equal to four?

...often a different size to normal pointers and also vary by platform, type, etc. Other than that +1. – John5342 May 30 '13 at 12:59  |  show 18...
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Function vs. Stored Procedure in SQL Server

...he input to another function (a SQL Server built-in such as DATEDIFF, LEN, etc) or as a predicate to a SQL Query - e.g., SELECT a, b, dbo.MyFunction(c) FROM table or SELECT a, b, c FROM table WHERE a = dbo.MyFunc(c). Stored procs are used to bind SQL queries together in a transaction, and interface...
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How to move all files including hidden files into parent directory via *

... to another?. It shows solutions in Bash, zsh, ksh93, standard (POSIX) sh, etc. You can use these two commands together: mv /path/subfolder/* /path/ # your current approach mv /path/subfolder/.* /path/ # this one for hidden files Or all together (thanks pfnuesel): mv /path/subfolder/{.,}* ...
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What is the difference between XML and XSD?

...an actual sample request which would be raw XML with <QuoteResultID> etc etc. – James Wilson Jun 7 '16 at 13:45 3 ...
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Center content of UIScrollView when smaller

... more jerky than using Liam's NYOBetterZoom. Maybe it depend on image size etc. The moral; use the solution that best suits your needs – wuf810 Apr 15 '11 at 10:36 2 ...