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Spark java.lang.OutOfMemoryError: Java heap space
...park.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 should have 2 - 4 per CPU. IME increasing the number of partitions is often the easiest way to make a program more stable (and often f...
What linux shell command returns a part of a string? [duplicate]
... use. -f changes it from counting characters to counting fields, delimited by TAB by default or by any character you specify following -d. So to get your input string up until but not including the first slash (exactly what I wanted), you can do: cut -d/ -f-1, which can be read as "cut on substrings...
How to work around the stricter Java 8 Javadoc when using Maven
You'll quickly realize that JDK8 is a lot more strict (by default) when it comes to Javadoc. ( link - see last bullet point)
...
When to encode space to plus (+) or %20?
...ck and forth, and since the + is a reserved character it will be preserved by the browser.
– Dave Van den Eynde
Jun 24 '14 at 14:22
18
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How can you detect the version of a browser?
... IMO, the correct result would be Opera 12.14 which would be accomplished by my suggestion.
– Kirk Woll
Mar 9 '14 at 16:19
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Most useful NLog configurations [closed]
...u great flexibility in the configuration of the loggers (control globally, by namespace, by specific logger name, etc).
Use non-classname-based loggers where appropriate. Maybe you have one function for which you really want to control the logging separately. Maybe you have some cross-cutting log...
Failed to serialize the response in Web API with Json
... an Entity. An entity refers to an object in the DB that can be retrieved by a unique id. You are returning all the User entities from your database. I'm suggesting that you create a new class called "UserModel" and for each of the User entities you get from the database, create a new instance of...
Difference between assertEquals and assertSame in phpunit?
...ly, but according to the docs:
assertSame
Reports an error identified by $message if the two variables $expected and $actual do not have the same type and value."
And as you can see in the example below the above excerpt, they are passing '2204' and 2204, which will fail using assertSame beca...
When and how should I use a ThreadLocal variable?
...d to be very careful about cleaning up any ThreadLocals you get() or set() by using the ThreadLocal's remove() method.
If you do not clean up when you're done, any references it holds to classes loaded as part of a deployed webapp will remain in the permanent heap and will never get garbage collect...
When to use CouchDB over MongoDB and vice versa
...ning is important.
A recent (Feb 2012) and more comprehensive comparison by Riyad Kalla,
MongoDB : Master-Slave Replication ONLY
CouchDB : Master-Master Replication
A blog post (Oct 2011) by someone who tried both, A MongoDB Guy Learns CouchDB commented on the CouchDB's paging being not as us...