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Apache Spark: The number of cores vs. the number of executors
I'm trying to understand the relationship of the number of cores and the number of executors when running a Spark job on YARN.
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how to install gcc on windows 7 machine?
...or C compiler. I found there is no single pre-compiled ready-made installation file for this purpose. I checked the following page : http://gcc.gnu.org/install/
It is difficult and I find it above my level of understanding.
Could any one please provide me step by step guidance along with links?
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JavaScript/jQuery to download file via POST with JSON data
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letronje's solution only works for very simple pages. document.body.innerHTML += takes the HTML text of the body, appends the iframe HTML, and sets the innerHTML of the page to that string. This will wipe out any event bindings your page has...
UITableViewCell, show delete button on swipe
...in (-viewDidLoad or in storyboard) do:
self.tableView.allowsMultipleSelectionDuringEditing = NO;
Override to support conditional editing of the table view. This only needs to be implemented if you are going to be returning NO for some items. By default, all items are editable.
- (BOOL)tableView:...
in_array multiple values
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Intersect the targets with the haystack and make sure the intersection is precisely equal to the targets:
$haystack = array(...);
$target = array('foo', 'bar');
if(count(array_intersect($haystack, $target)) == count($target)){
// all of $target is in $haystack
}
Note that you only n...
Why should I use Restify?
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Corrigendum: this information is now wrong, keep scrolling!
there was an issue with the script causing the Restify test to be conducted on an unintended route. This caused the connection to be kept alive causing improved performance due to reduced...
Add subdomain to localhost URL
I am writing an web application that behaves differently depending on a url prefix. The format is something like:
5 Answers...
Getting the filenames of all files in a folder [duplicate]
... 17 '11 at 15:31
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byte[] to file in Java
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Use Apache Commons IO
FileUtils.writeByteArrayToFile(new File("pathname"), myByteArray)
Or, if you insist on making work for yourself...
try (FileOutputStream fos = new FileOutputStream("pathname")) {
fos.write(myByteArray);
//fos.clo...
Android - Emulator in landscape mode, screen does not rotate
...D 7 or CTRL + F11 ) the emulator rotates the screen to landscape orientation but the Android OS and none of the apps rotate. So everything is sitting sideways. Is there something in the AVD configuration that needs to be set in order for the device to rotate properly?
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