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Spark java.lang.OutOfMemoryError: Java heap space
...your nodes are configured to have 6g maximum for Spark (and are leaving a little for other processes), then use 6g rather than 4g, spark.executor.memory=6g. Make sure you're using as much memory as possible by checking the UI (it will say how much mem you're using)
Try using more partitions, you sho...
Getting an element from a Set
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There would be no point of getting the element if it is equal. A Map is better suited for this usecase.
If you still want to find the element you have no other option but to use the iterator:
public static void main(String[] args) {
Set<Foo> set = new HashSet&...
Which HTTP methods match up to which CRUD methods?
...yle programming, we should use HTTP methods as our building blocks. I'm a little confused though which methods match up to the classic CRUD methods. GET/Read and DELETE/Delete are obvious enough.
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How can I access Google Sheet spreadsheets only with Javascript?
...oogle spreadsheet data (if they are published) via the JSON api:
https://github.com/mikeymckay/google-spreadsheet-javascript
You can see it in action here:
http://mikeymckay.github.com/google-spreadsheet-javascript/sample.html
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How to use permission_required decorators on django class-based views
I'm having a bit of trouble understanding how the new CBVs work. My question is this, I need to require login in all the views, and in some of them, specific permissions. In function-based views I do that with @permission_required() and the login_required attribute in the view, but I don't know how ...
Preserve line breaks in angularjs
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Based on @pilau s answer - but with an improvement that even the accepted answer does not have.
<div class="angular-with-newlines" ng-repeat="item in items">
{{item.description}}
</div>
/* in the css file or in a style block */
.angular-wit...
Adjust width of input field to its input
This is my code and it is not working. Is there any other way in HTML, JavaScript, PHP or CSS to set minimum width?
26 Answ...
Non greedy (reluctant) regex matching in sed?
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Neither basic nor extended Posix/GNU regex recognizes the non-greedy quantifier; you need a later regex. Fortunately, Perl regex for this context is pretty easy to get:
perl -pe 's|(http://.*?/).*|\1|'
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Java Generics: Cannot cast List to List? [duplicate]
Just come across with this problem:
10 Answers
10
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MySQL - SELECT WHERE field IN (subquery) - Extremely slow why?
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Rewrite the query into this
SELECT st1.*, st2.relevant_field FROM sometable st1
INNER JOIN sometable st2 ON (st1.relevant_field = st2.relevant_field)
GROUP BY st1.id /* list a unique sometable field here*/
HAVING COUNT(*) > ...