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Data Modeling with Kafka? Topics and Partitions
...ssing is partition-local.
For example:
If you care about users' average time-on-site, then you should partition by :user-id. That way, all the events related to a single user's site activity will be available within the same partition. This means that a stream processing engine such as Apache Sam...
A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7
...tically generates obfuscated receipt validation code, a different one each time; it supports both GUI and command-line operation. Highly recommended.
(Not affiliated with Receigen, just a happy user.)
I use a Rakefile like this to automatically rerun Receigen (because it needs to be done on every ...
Convert timestamp to date in MySQL query
I want to convert a timestamp in MySQL to a date.
10 Answers
10
...
How can I list ALL DNS records?
... their cache, and others restricted it to certain record types. In modern times (2016+), most providers have either disabled ANY (or give it a useless answer) or have plans to do so, as it is the common driver for many amplification attacks.
– Nick Bastin
Oct ...
moment.js 24h format
How do I display my time in 24h format instead of 12?
8 Answers
8
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What does template mean?
...d int x = N;
In fact, we can create algorithms which evaluate at compile time (from Wikipedia):
template <int N>
struct Factorial
{
enum { value = N * Factorial<N - 1>::value };
};
template <>
struct Factorial<0>
{
enum { value = 1 };
};
// Factorial<4>:...
How do I read the source code of shell commands?
... written with. I've gained some experience using them and now I think it's time to interact with my machine at a deeper level.
...
How do I repeat an edit on multiple lines in Vim?
...tes line wise in visual mode. I think the visual mode in this case can sometimes be convenient to select a line range. But commands and macros are more flexible and powerful in this case.
– Bohr
Oct 2 '13 at 2:12
...
How to compare type of an object in Python?
...st, avoid all type comparisons. They're very, very rarely necessary. Sometimes, they help to check parameter types in a function -- even that's rare. Wrong type data will raise an exception, and that's all you'll ever need.
All of the basic conversion functions will map as equal to the type func...
Update Git submodule to latest commit on origin
... initially
git submodule add ssh://bla submodule_dir
git submodule init
# Time passes, submodule upstream is updated
# and you now want to update
# Change to the submodule directory
cd submodule_dir
# Checkout desired branch
git checkout master
# Update
git pull
# Get back to your project root
...