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What is the purpose of shuffling and sorting phase in the reducer in Map Reduce Programming?
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First of all shuffling is the process of transfering data from the mappers to the reducers, so I think it is obvious that it is necessary for the reducers, since otherwise, they wouldn't be able to have any input (or input from every ...
heroku - how to see all the logs
I have a small app on heroku. Whenever I want to see the logs I go to the command line and do
19 Answers
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Multi flavor app based on multi flavor library in Android Gradle
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Finally I found out how to do this, I will explain it here for others facing same problem:
The key part is to set publishNonDefault to true in library build.gradle, Then you must define dependencies as suggested by user guide.
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Having the output of a console application in Visual Studio instead of the console
...t; Visual Studio Options Dialog -> Debugging -> Check the "Redirect All Output Window Text to the Immediate Window".
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Does the default constructor initialize built-in types?
...erformed by other means. Not by default constructor, nor by constructor at all.
For example, there's a widespread incorrect belief that for class C the syntax C() always invokes default constructor. In reality though, the syntax C() performs so called value-initialization of the class instance. It...
How to use arguments from previous command?
... the previous commands (arg 0). Similarly Alt-- then repeating Alt-. would allow you to step through the previous next-to-last arguments.
If there is no appropriate argument on a particular line in history, the bell will be rung.
If there is a particular combination you use frequently, you can def...
How to download HTTP directory with all files and sub-directories as they appear on the online files
...s an online HTTP directory that I have access to. I have tried to download all sub-directories and files via wget . But, the problem is that when wget downloads sub-directories it downloads the index.html file which contains the list of files in that directory without downloading the files them...
SQL/mysql - Select distinct/UNIQUE but return all columns?
...m trying to accomplish the following sql statement but I want it to return all columns is this possible? Something like:
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How to delete a folder and all contents using a bat file in windows?
I want to delete a folder with all files and subfolders using a bat file.
3 Answers
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PHPExcel auto size column width
... columns of my sheet.
I'm writing the file and in the end I try to resize all of my columns.
16 Answers
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