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Task not serializable: java.io.NotSerializableException when calling function outside closure only o
...sk to fail. Now this doesn't mean that you can serialise an RDD with Spark and avoid NotSerializableException
Spark is a distributed computing engine and its main abstraction is a resilient distributed dataset (RDD), which can be viewed as a distributed collection. Basically, RDD's elements are par...
Padding between ActionBar's home icon and title
Does anybody know how to set padding between the ActionBar's home icon and the title?
21 Answers
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Size of character ('a') in C/C++
What is the size of character in C and C++ ? As far as I know the size of char is 1 byte in both C and C++.
4 Answers
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Change type of varchar field to integer: “cannot be cast automatically to type integer”
I have a small table and a certain field contains the type " character varying ". I'm trying to change it to " Integer " but it gives an error that casting is not possible.
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How do I find the location of the executable in C? [duplicate]
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To summarize:
On Unixes with /proc really straight and realiable way is to:
readlink("/proc/self/exe", buf, bufsize) (Linux)
readlink("/proc/curproc/file", buf, bufsize) (FreeBSD)
readlink("/proc/self/path/a.out", buf, bufsize) (Solaris)
On Unixes without /proc (i.e. if ab...
What is the aspnet_client folder for under the IIS structure?
I notice that there's frequently an aspnet_client folder under the standard IIS web folder structure. What is this used for? Is it needed?
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Git cherry pick vs rebase
...-one.
Hence, possibly the most striking difference between these two commands is how they treat the branch they work on: git cherry-pick usually brings a commit from somewhere else and applies it on top of your current branch, recording a new commit, while git rebase takes your current branch and ...
Get number of digits with JavaScript
...viour of floating point math, so cast-to-string approach will be more easy and fool proof. As mentioned by @streetlogics fast casting can be done with simple number to string concatenation, leading the replace solution to be transformed to:
var length = (number + '').replace('.', '').length; // fo...
Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...sing in the branch prediction table
moving the branch eliminated the alias and allowed the branch to be predicted correctly
Your Core2 doesn't keep a separate history record for each conditional jump. Instead it keeps a shared history of all conditional jumps. One disadvantage of global branch pr...
What is Scala's yield?
I understand Ruby and Python's yield. What does Scala's yield do?
9 Answers
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