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Spark java.lang.OutOfMemoryError: Java heap space
...r) The following is also indicative of this problem:
java.lang.OutOfMemoryError : GC overhead limit exceeded
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Step-by-step debugging with IPython
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You can use IPython's %pdb magic. Just call %pdb in IPython and when an error occurs, you're automatically dropped to ipdb. While you don't have the stepping immediately, you're in ipdb afterwards.
This makes debugging individual functions easy, as you can just load a file with %load and then ru...
Difference between Xcode version (CFBundleShortVersionString) and build (CFBundleVersion)
... nekno: Actually the CFBundleVersion is what matters to Apple. Check this error message Apple give when submitting an app: "The binary you uploaded was invalid. The key CFBundleVersion in the Info.plist file must contain a higher version than that of the previously uploaded version."
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Intersection of two lists in Bash
... I just used this in an effort to find usages of a public method error() provided by a trait, in combination with git grep, and it was awesome! I ran $ comm -12 <(git grep -il "\$this->error(" -- "*.php") <(git grep -il "Dash_Api_Json_Response" -- "*.php"), and luckily I ended up ...
Why is a ConcurrentModificationException thrown and how to debug it
...e faulty for loop will usually be in the stack-trace, so tracking down the error is usually easy.
A trickier case is when your code passes around references to the Collection object. Note that unmodifiable views of collections (such as produced by Collections.unmodifiableList()) retain a reference t...
Read logcat programmatically within application
...= new ProcessBuilder()
.command("logcat", "-c")
.redirectErrorStream(true)
.start();
} catch (IOException e) {
}
}
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Windows batch files: .bat vs .cmd?
...extensions enabled, PATH/APPEND/PROMPT/SET/ASSOC in .CMD
files will set ERRORLEVEL regardless of error. .BAT sets ERRORLEVEL
only on errors.
In other words, if ERRORLEVEL is set to non-0 and then you run one of those commands, the resulting ERRORLEVEL will be:
left alone at its non-0 value...
How do I write stderr to a file while using “tee” with a pipe?
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thanks for that comment; I figured out what my logical error was afterwards: when invoked as an interactive shell, bash prints a command prompt and echoes exit to stderr. However, if stderr is redirected, bash starts as noninteractive by default; compare /bin/bash 2> err and /...
Razor-based view doesn't see referenced assemblies
...rked perfectly in Controllers and Models but failed in Razor views with an error 'The type or namespace name 'DBLayer' does not exist in the namespace 'MyCore' (are you missing an assembly reference?)' which was obviously not the case.
Copy Local option was set to true.
Adding "using..." stateme...
Stubbing a class method with Sinon.js
I am trying to stub a method using sinon.js but I get the following error:
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