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Simple basic explanation of a Distributed Hash Table (DHT)
...auty of consistent hashing is that we eliminate the number of buckets "n", from the equation.
In naive hashing, first variable is the key of the object to be stored in the table. We'll call the key "x". The second variable is is the number of buckets, "n". So, to determine which bucket/machine ...
Grep only the first match and stop
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@3Qn, I don't understand your comment: first not first from result. This answer prints first match in any file and stops. What else did you expect?
– mvp
Apr 19 at 23:51
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Check if a string contains another string
... InStrRev function which does the same type of thing, but starts searching from the end of the text to the beginning.
Per @rene's answer...
Dim pos As Integer
pos = InStrRev("find the comma, in the string", ",")
...would still return 15 to pos, but if the string has more than one of the search s...
Using :before CSS pseudo element to add image to modal
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Even with content being heavily used in CSS3, from what I've seen it's still one of those that aren't fully supported anywhere. I believe this has to do with some fear of being able to inject evil things. Also, I believe content needs an already existing element to injec...
How to safely open/close files in python 2.4
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Here is example given which so how to use open and "python close
from sys import argv
script,filename=argv
txt=open(filename)
print "filename %r" %(filename)
print txt.read()
txt.close()
print "Change the file name"
file_again=raw_input('>')
print "New file name %r" %(file_again)
txt_ag...
A TwoWay or OneWayToSource binding cannot work on the read-only property
...Way.
<TextBox Text="{Binding Path=MyProperty, Mode=OneWay}" />
or from code:
Binding binding = new Binding();
binding.Mode = BindingMode.OneWay;
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What is causing ERROR: there is no unique constraint matching given keys for referenced table?
...work I really should be defining a compound primary key, but I backed away from it because mapping it to JPA its a bit of a pain :)
– ams
Aug 15 '12 at 9:15
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Regular expression search replace in Sublime Text 2
... The exit mark $0 is used in Sublime Text 2/3 to place the cursor on exit from a snippet expansion. More on snippets.
– jrhorn424
Sep 30 '13 at 6:45
2
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Change MySQL default character set to UTF-8 in my.cnf?
...o long; max key length is 767 bytes.). If possible, reduce the column size from 255 to 191 (because 191 * 4 = 764 < 767 < 192 * 4 = 768). After that, the table can be converted.
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Rounding DateTime objects
...mething like Bankers Rounding technically round half even to be truly free from bias.
It is quite likely that you really only care about the first point but in these 'simple' questions the resulting behaviour can have far reaching consequences as you use it in the real world (often at the interva...