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what's the difference between “hadoop fs” shell commands and “hdfs dfs” shell commands?
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Following are the three commands which appears sam>me m> but have minute differences
hadoop fs {args}
hadoop dfs {args}
hdfs dfs {args}
hadoop fs <args>
FS relates to a generic file system which can point to any file systems like local, H...
How to check if a variable is a dictionary in Python?
... ele in d.values():
if isinstance(ele,dict):
for k, v in ele.items():
print(k,' ',v)
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How do RVM and rbenv actually work?
I am interested in how RVM and rbenv actually work.
5 Answers
5
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Difference between std::system_clock and std::steady_clock?
What is the difference between std::system_clock and std::steady_clock ? (An example case that illustrate different results/behaviours would be great).
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How can I plot with 2 different y-axes?
I would like superimpose two scatter plots in R so that each set of points has its own (different) y-axis (i.e., in positions 2 and 4 on the figure) but the points appear superimposed on the sam>me m> figure.
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Why does an overridden function in the derived class hide other overloads of the base class?
...ou used the word "hide"), you already know what is going on here. The phenom>me m>non is called "nam>me m> hiding". For som>me m> reason, every tim>me m> som>me m>one asks a question about why nam>me m> hiding happens, people who respond either say that this called "nam>me m> hiding" and explain how it works (which you probably alrea...
What's the difference between => , ()=>, and Unit=>
I'm trying to represent a function that takes no argum>me m>nts and returns no value (I'm simulating the setTim>me m>out function in JavaScript, if you must know.)
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Rails update_attributes without save?
...lieve what you are looking for is assign_attributes.
It's basically the sam>me m> as update_attributes but it doesn't save the record:
class User < ActiveRecord::Base
attr_accessible :nam>me m>
attr_accessible :nam>me m>, :is_admin, :as => :admin
end
user = User.new
user.assign_attributes({ :nam>me m> =&gt...
Elastic search, multiple indexes vs one index and types for different data sets?
I have an application developed using the MVC pattern and I would like to index now multiple models of it, this m>me m>ans each model has a different data structure.
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Differences between git remote update and fetch?
Is git remote update the equivalent of git fetch ?
2 Answers
2
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