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Database sharding vs partitioning
... use the alphabet to divide the data. A-D is instance 1, E-G is instance 2 etc. Customer data is well suited for this, but will be somewhat misrepresented in size across instances if the partitioning does not take in to account that some letters are more common than others.
Another common technique...
Using a Single Row configuration table in SQL Server database. Bad idea?
...ormation, Shipping account IDs, PayPal API keys, notification preferences, etc.
12 Answers
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Difference between /res and /assets directories
...ng alternatives for different languages, OS versions, screen orientations, etc., as described here. None of that is available with assets. Also, many parts of the API support the use of resource identifiers. Finally, the names of the resources are turned into constant field names that are checked at...
How is Docker different from a virtual machine?
...s it manage to provide a full filesystem, isolated networking environment, etc. without being as heavy?
19 Answers
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lexers vs parsers
...d/matched parentheses (()()(()())), nested HTML/BBcode tags, nested blocks etc. It's because state automata to deal with it should have to have infinitely many states to handle infinitely many nesting levels.
Level 2: Context-free grammars
They can have nested, recursive, self-similar branches in t...
How to make vim paste from (and copy to) system's clipboard?
...ple what is one doing with "*p? Do I press Shift-', then Shift-8, then p, etc.?
– T. Brian Jones
Nov 7 '13 at 2:09
12
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What's “tools:context” in Android layout files?
...ng (which at runtime happens in the other direction; an activity can call setContentView(layout) to display a layout) in order to drive certain features.
Right now, we're using it for one thing only: Picking the right theme to show for a layout (since the manifest file can register themes to use fo...
How do I use a file grep comparison inside a bash if/else statement?
... was not given, the exit status is 2.
if grep --quiet MYSQL_ROLE=master /etc/aws/hosts.conf; then
echo exists
else
echo not found
fi
You may want to use a more specific regex, such as ^MYSQL_ROLE=master$, to avoid that string in comments, names that merely start with "master", etc.
This wor...
What to do with branch after merge
...
Fix/fix-<somedescription> or
Ftr/ftr-<somedescription> or
etc.
Using Tower as my git front end, it neatly organizes all the Ftr/, Fix/, Test/ etc. into folders.
Once I am done with a branch, I rename them to Done/...-<description>.
That way they are still there (which ca...
Logging in Scala
...ries have been some wrappers around a Java logging framework (slf4j, log4j etc), but as of March 2015, the surviving log libraries are all slf4j. These log libraries provide some sort of log object to which you can call info(...), debug(...), etc. I'm not a big fan of slf4j, but it now seems to be t...