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RabbitMQ / AMQP: single queue, multiple consumers for same message?
...e 1, 2, 3, 4, 5, 6? What is this called in AMQP/RabbitMQ speak? How is it normally configured?
No, not if the consumers are on the same queue. From RabbitMQ's AMQP Concepts guide:
it is important to understand that, in AMQP 0-9-1, messages are load balanced between consumers.
This seems to im...
Checking if output of a command contains a certain string in a shell script
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This code doesn't work with all POSIX shells: The POSIX standard only requires = to be a comparison operator, not ==; see pubs.opengroup.org/onlinepubs/9699919799/utilities/test.html
– Charles Duffy
Mar 30...
Xcode doesn't show the line that causes a crash
...function as the line that caused the crash. In some cases that used to be normal (segmentation fault for example) but the crash I am trying to deal with is a simple SIGABRT with detailed information logged in the console:
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Execute script after specific delay using JavaScript
Is there any JavaScript method similar to the jQuery delay() or wait() (to delay the execution of a script for a specific amount of time)?
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Search all the occurrences of a string in the entire project in Android Studio
I've just started using Android Studio (IntelliJ), and I now look for the feature to find the occurrence of a string in any of the files in my project. For example: I want to find all the files that contain the string " .getUuid() "
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Best way to compare 2 XML documents in Java
...tomated test of an application that basically translates a custom message format into an XML message and sends it out the other end. I've got a good set of input/output message pairs so all I need to do is send the input messages in and listen for the XML message to come out the other end.
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Does use of final keyword in Java improve the performance?
In Java we see lots of places where the final keyword can be used but its use is uncommon.
13 Answers
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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
...tice1 are not the problem because they are accessed sequentially.
However for matice2 if a full column fits in L2 (i.e when you access matice2[0, 0], matice2[1, 0], matice2[2, 0] ... etc, nothing gets evicted) than there is no problem with cache misses with matice2 either.
Now to go deeper in how c...
How do you round a float to two decimal places in jruby
... I know it does not appear to be the intention of Sam to round the number for the purpose of presenting something like a currency, but be aware that using #round(precision) will not work as intended if you are trying to do this (3.round(2) #=> 3.0, not 3.00). To get this, check out the answer by ...
Python name mangling
...hidden as possible. If in doubt about whether a variable should be private or protected, it's better to go with private.
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