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How to debug Lock wait timeout exceeded on MySQL?
In my production error logs I occasionally see:
11 Answers
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What is the Sign Off feature in Git for?
...nto the Linux kernel and a few other projects, but most projects don't actually use it.
It was introduced in the wake of the SCO lawsuit, (and other accusations of copyright infringement from SCO, most of which they never actually took to court), as a Developers Certificate of Origin. It is used to...
How to implement a tree data-structure in Java? [closed]
...object. It is fairly easy to implement simple trees to do what you need.
All you need to add are methods for add to, removing from, traversing, and constructors. The Node is the basic building block of the Tree.
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How do I set the default font size in Vim?
...ault settings for my GUI with Vim. I already made research on the web, but all the solutions I found and tried did not work.
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Octave-Gnuplot-AquaTerm error: set terminal aqua enhanced title “Figure 1”…unknown terminal type"
I've installed Octave and gnuplot via Homebrew, and downloaded AquaTerm.dmg.
When I try to plot, I get the following message:
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What is the !! (not not) operator in JavaScript?
... Partial Obscurity:
val.enabled = (userId != 0) ? true : false;
// And finally, much easier to understand:
val.enabled = (userId != 0);
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Build vs new in Rails 3
...ng a new Client object from the clients collection, and so it can automatically set the firm_id to some_firm.id, whereas the docs are calling Client.new which has no knowledge of any Firm's id at all, so it needs the firm_id passed to it.
The only difference between some_firm.clients.new and some_f...
Mockito - difference between doReturn() and when()
...rn() has the big disadvantage of turning into YODA style coding of method calls. The thing later comes written down first that is. Most people read left to right; so you now have to constantly remember to reverse the return-when logic in your head.
– GhostCat
F...
install / uninstall APKs programmatically (PackageManager vs Intents)
My application installs other applications, and it needs to keep track of what applications it has installed. Of course, this could be achieved by simply keeping a list of installed applications. But this should not be necessary! It should be the responsibility of the PackageManager to maintain the ...
Static Indexers?
...follows:
public class Utilities
{
private static ConfigurationManager _configurationManager = new ConfigurationManager();
public static ConfigurationManager ConfigurationManager => _configurationManager;
}
public class ConfigurationManager
{
public object this[string value]
{
...