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Message Queue vs Message Bus — what are the differences?
And are there any? To me, MB knows both subscribers and publishers and acts as a mediator, notifying subscribers on new messages (effectively a "push" model). MQ, on the other hand, is more of a "pull" model, where consumers pull messages off a queue.
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Getting output of system() calls in Ruby
If I call a command using Kernel#system in Ruby, how do I get its output?
15 Answers
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Hash collision in git
...f? Well the Moon is made up of about 1047 atoms. So if we have 10 Moons... and you randomly pick one atom on one of these moons... and then go ahead and pick a random atom on them again... then the likelihood that you'll pick the same atom twice, is the likelihood that two given git commits will hav...
Difference between InvariantCulture and Ordinal string comparison
...trings in c# for equality, what is the difference between InvariantCulture and Ordinal comparison?
9 Answers
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Saving and loading objects and using pickle
I´m trying to save and load objects using pickle module.
First I declare my objects:
7 Answers
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lenses, fclabels, data-accessor - which library for structure access and mutation is better
There are at least three popular libraries for accessing and manipulating fields of records. The ones I know of are: data-accessor, fclabels and lenses.
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Why does Unicorn need to be deployed together with Nginx?
I would like to know the difference between Nginx and Unicorn. As far as I understand, Nginx is a web server while Unicorn is a Ruby HTTP server.
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Can not connect to local PostgreSQL
...really looks like a file permissions error. Unix domain sockets are files and have user permissions just like any other. It looks as though the OSX user attempting to access the database does not have file permissions to access the socket file. To confirm this I've done some tests on Ubuntu and p...
Java heap terminology: young, old and permanent generations?
I'm trying to understand What the concepts of young , old and permanent generations are in the Java heap terminology, and more specifically the interactions between the three generations.
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What are C++ functors and their uses?
...about functors in C++. Can someone give me an overview as to what they are and in what cases they would be useful?
14 Answe...