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RabbitMQ and relationship between channel and connection
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I think this reference to the Java Client API is now outdated and in fact today's reference directly contradicts the quote in this answer. Today's reference says "Channel instances must not be shared between threads".
– Edwin Dalorzo
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In what cases could `git pull` be harmful?
...it of a (fake) linear history
Not cleaning up branches is good. Each repo knows what it wants to hold. Git has no notion of master-slave relationships.
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How does having a dynamic variable affect performance?
... that represents "there's going to be a dynamic call to Foo here".
OK, so now that you've got the call site, how does the invocation work?
The call site is part of the Dynamic Language Runtime. The DLR says "hmm, someone is attempting to do a dynamic invocation of a method foo on this here object....
Transaction isolation levels relation with locks on table
... on production: imagine that T table is an Invoice table, user X wants to know the invoices of the day and user Y wants to create a new invoice, so while X executes the read of the invoices, Y can't add a new invoice (and when it's about money, people get really mad, especially the bosses).
I ...
libxml install error using pip
...python-dev
For Debian based systems, it should be enough to install the known build dependencies of python-lxml or python3-lxml, e.g.
sudo apt-get build-dep python3-lxml
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Inline labels in Matplotlib
... less than 0.2). See this question for a particularly nasty example. Right now, the code does not intelligently identify this scenario and re-arrange the labels, however there is a reasonable workaround. The labelLines function takes the xvals argument; a list of x-values specified by the user inste...
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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Android: Vertical alignment for multi line EditText (Text area)
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Do not use top|left unless you know you can control all the languages in your app, there are a lot of right-to-left languages out there (en.wikipedia.org/wiki/Right-to-left) Keep it localization-friendly
– MariusBudin
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Is either GET or POST more secure than the other?
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If your site performs sensitive operations, you really need someone who knows what they’re doing, because this can’t be covered in a single answer. You need to use HTTPS, HSTS, CSP, mitigate SQL injection, script injection (XSS), CSRF, and a gazillion of other things that may be specific to yo...
Git - Difference Between 'assume-unchanged' and 'skip-worktree'
...le is changed upstream).
skip-worktree is more than that: even where git knows that the file has been modified (or needs to be modified by a reset --hard or the like), it will pretend it has not been, using the version from the index instead. This persists until the index is discarded.
There is a ...