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Spark java.lang.OutOfMemoryError: Java heap space
...uge amounts of data you may need way more than 4 per CPU, I've had to use 8000 partitions in some cases!
Decrease the fraction of memory reserved for caching, using spark.storage.memoryFraction. If you don't use cache() or persist in your code, this might as well be 0. It's default is 0.6, which me...
How do I find the install time and date of Windows?
...sion\InstallDate
It's given as the number of seconds since January 1, 1970. (Note: for Windows 10, this date will be when the last feature update was installed, not the original install date.)
To convert that number into a readable date/time just paste the decimal value in the field "UNIX TimeSta...
How to connect android emulator to the internet
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answered Apr 24 '10 at 0:07
VaughnVaughn
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How to document a method with parameter(s)?
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Vladimir KeleshevVladimir Keleshev
10.3k1414 gold badges5555 silver badges8383 bronze badges
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Regex replace uppercase with lowercase letters
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edited Jun 12 '18 at 15:10
answered Dec 23 '13 at 11:09
Al...
do N times (declarative syntax)
... here's a way to do call something() 1, 2 and 3 times respectively:
It's 2017, you may use ES6:
[1,2,3].forEach(i => Array(i).fill(i).forEach(_ => {
something()
}))
or in good old ES5:
[1,2,3].forEach(function(i) {
Array(i).fill(i).forEach(function() {
something()
})
}))
In bo...
Remove portion of a string after a certain character
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301
$variable = substr($variable, 0, strpos($variable, "By"));
In plain english: Give me the par...
C++应用程序添加VBScript和JavaScript支持 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
...tParam(aParam)
{
var strPresent = "Parameter is : " + (aParam.length>0 ? "Present": "Not present");
return strPresent;
}
The same technique may be used in VBScript. This allows you to detect variable length argument at run time. To call a function without argument, a SAFERRAY is creat...
POST unchecked HTML checkboxes
... |
edited Aug 15 '15 at 10:11
emotality
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answere...
HTML text input field with currency symbol
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104
Consider simulating an input field with a fixed prefix or suffix using a span with a border aro...