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Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
...on an Amazon EC2 micro instance. I tried decreasing inno_db's memory usage by adding the following to /etc/my.cnf
innodb_buffer_pool_size = 64M
That didn't work, I tried dropping it down to 16M and it still didnt work. Then I realized that the instance had basically zero free memory. So I tried ...
What are the parameters sent to .fail in jQuery?
...s is "error"
error is "Internal Server Error", it's the error message sent by the server.
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Do Swift-based applications work on OS X 10.9/iOS 7 and lower?
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@Leandros By using var keyword, why do we need to type UIViewController two times in this line "var controller: UIViewController = UIViewController()"? Is var not same as JavaScript/C# (if no, then so sad)? Is this casting, but object ...
Java 8: performance of Streams vs Collections
...from the middle of the list using iterator.
Stop writing benchmarking code by hand, use JMH.
Proper benchmarks:
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@BenchmarkMode(Mode.AverageTime)
@OperationsPerInvocation(StreamVsVanilla.N)
public class StreamVsVanilla {
public static final int N = 10000;
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What are “sugar”, “desugar” terms in context of Java 8?
... for example).
This being said, desugaring refers either to
the process by which you remove all that is redundant in a language
the process by which a code processor finds out what's behind a sugared statement (this may for example involves type inference)
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Open terminal here in Mac OS finder [closed]
...this functionality as a Service. As with most Services, these are disabled by default, so you'll need to enable this to make it appear in the Services menu.
System Preferences > Keyboard > Shortcuts > Services
Enable New Terminal at Folder. There's also New Terminal Tab at Folder, whi...
Why is 128==128 false but 127==127 is true when comparing Integer wrappers in Java?
... method is likely to yield significantly better space and time performance by caching frequently requested values. This method will always cache values in the range -128 to 127, inclusive, and may cache other values outside of this range.
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Android: What is android.R.id.content used for?
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}
}
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}
The code above will insert the View created by Fragment into the ViewGroup identified by android.R.id.content.
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Matplotlib tight_layout() doesn't take into account figure suptitle
If I add a subtitle to my matplotlib figure it gets overlaid by the subplot's titles. Does anybody know how to easily take care of that? I tried the tight_layout() function, but it only makes things worse.
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Is there a way to use PhantomJS in Python?
...nshot('screen.png') # save a screenshot to disk
sbtn = driver.find_element_by_css_selector('button.gbqfba')
sbtn.click()
If your system path environment variable isn't set correctly, you'll need to specify the exact path as an argument to webdriver.PhantomJS(). Replace this:
driver = webdriver.P...