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what's the difference between “hadoop fs” shell commands and “hdfs dfs” shell commands?
Are they supposed to be equal?
6 Answers
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How to check if a variable is a dictionary in Python?
How would you check if a variable is a dictionary in python?
4 Answers
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What kind of leaks does automatic reference counting in Objective-C not prevent or minimize?
In the Mac and iOS platforms, memory leaks are often caused by unreleased pointers. Traditionally, it has always been of utmost importance to check your allocs, copies and retains to make sure each has a corresponding release message.
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What is the explicit promise construction antipattern and how do I avoid it?
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The deferred antipattern (now explicit-construction anti-pattern) coined by Esailija is a common anti-pattern people who are new to promises make, I've made it myself when I first used promises. The problem with the above code is that is fails to utilize the fact that p...
How do I set up a basic Ruby project?
I want to create a small Ruby project with 10 ~ 20 classes/files. I need some gems and I want to use RSpec as test framework.
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Does bit-shift depend on endianness?
Suppose I have the number 'numb'=1025 [00000000 00000000 00000100 00000001] represented:
5 Answers
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How to increment a pointer address and pointer's value?
Let us assume,
5 Answers
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Java to Clojure rewrite
I have just been asked by my company to rewrite a largish (50,000 single lines of code) Java application (a web app using JSP and servlets) in Clojure. Has anyone else got tips as to what I should watch out for?
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What is the advantage of using forwarding references in range-based for loops?
const auto& would suffice if I want to perform read-only operations. However, I have bumped into
3 Answers
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Rename specific column(s) in pandas
I've got a dataframe called data . How would I rename the only one column header? For example gdp to log(gdp) ?
5 Answe...