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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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Auto Resize Image in CSS FlexBox Layout and keeping Aspect Ratio?

...oking for an answer to my distorted images" i got here for the same reason and your solution helped me (what was marked as the actual solution didn't help me at all) – Wagner Danda da Silva Filho Jun 29 '16 at 17:30 ...
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Difference between Pragma and Cache-Control headers?

... Pragma is the HTTP/1.0 implementation and cache-control is the HTTP/1.1 implementation of the same concept. They both are meant to prevent the client from caching the response. Older clients may not support HTTP/1.1 which is why that header is still in use. ...
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How to extract an assembly from the GAC?

...om VS project. Developers usually keep a copy of the original DLL file and refer to it in the project at development (design) time, which uses the assembly from GAC during run-time of the project. During execution (run-time) if the assembly is found to be signed and deployed in ...
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client secret in OAuth 2.0

...e google drive api, I have to play with the authentication using OAuth2.0. And I got a few question about this. 3 Answers ...
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Remove duplicate values from JS array [duplicate]

... Quick and dirty using jQuery: var names = ["Mike","Matt","Nancy","Adam","Jenny","Nancy","Carl"]; var uniqueNames = []; $.each(names, function(i, el){ if($.inArray(el, uniqueNames) === -1) uniqueNames.push(el); }); ...
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How to tell if a string is not defined in a Bash shell script

...Autoconf, you'll find that they do not recommend combining terms with '-a' and do recommend using separate simple tests combined with &&. I've not encountered a system where there is a problem; that doesn't mean they didn't used to exist (but they are probably extremely rare these days, eve...
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Difference between a theta join, equijoin and natural join

I'm having trouble understanding relational algebra when it comes to theta joins, equijoins and natural joins. Could someone please help me better understand it? If I use the = sign on a theta join is it exactly the same as just using a natural join? ...
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Studies on optimal code width?

...racters. I tend to change it to 120 for no reason other than it was the standard at a company I was with a few years back, and no other company has told me to do it differently. ...
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Is there a library function for Root mean square error (RMSE) in python?

...lso known as MSE, RMD, or RMS. What problem does it solve? If you understand RMSE: (Root mean squared error), MSE: (Mean Squared Error) RMD (Root mean squared deviation) and RMS: (Root Mean Squared), then asking for a library to calculate this for you is unnecessary over-engineering. All these me...