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Is Zookeeper a must for Kafka?
... coordination system. So Kafka, Storm, HBase, SolrCloud to just name a few all use Zookeeper to help manage and coordinate.
Kafka is a distributed system and is built to use Zookeeper. The fact that you are not using any of the distributed features of Kafka does not change how it was built. In any ...
Why is `replace` property deprecated in AngularJS directives? [duplicate]
...PI docs , directives' replace attribute is deprecated, so in the future, all directives will behave with the current default of replace: false .
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Delete a closed pull request from GitHub
I accidentally made a wrong pull request and ended up closing the request myself. It's in a closed state right now but it's accessible via direct URL and showing on my activity bar.
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Use of ~ (tilde) in R programming Language
...".
The myFormula <- part of that line stores the formula in an object called myFormula so you can use it in other parts of your R code.
Other common uses of formula objects in R
The lattice package uses them to specify the variables to plot.
The ggplot2 package uses them to specify panels fo...
Is .NET/Mono or Java the better choice for cross-platform development? [closed]
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Well....Java is actually more portable. Mono isn't implemented everywhere, and it lags behind the Microsoft implementation significantly. The Java SDK seems to stay in better sync across platforms (and it works on more platforms).
I'd also ...
How to fully delete a git repository created with init?
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Git keeps all of its files in the .git directory. Just remove that one and init again.
If you can't find it, it's because it is hidden.
In Windows 7, you need to go to your folder, click on Organize on the top left, then click on Fo...
Is there anyway to exclude artifacts inherited from a parent POM?
...to test would be to declare the mail artifact with the version required by ALL-DEPS under the dependencyManagement in the parent pom to force the convergence (although I'm not sure this will solve the scoping problem).
<dependencyManagement>
<dependencies>
<dependency>
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What is the Python 3 equivalent of “python -m SimpleHTTPServer”
...as been merged into http.server in Python 3.0. The 2to3 tool will automatically adapt imports when converting your sources to 3.0.
So, your command is python -m http.server, or depending on your installation, it can be:
python3 -m http.server
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Convert integer into byte array (Java)
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Have a look at the ByteBuffer class.
ByteBuffer b = ByteBuffer.allocate(4);
//b.order(ByteOrder.BIG_ENDIAN); // optional, the initial order of a byte buffer is always BIG_ENDIAN.
b.putInt(0xAABBCCDD);
byte[] result = b.array();
Setting the byte order ensures that result[0] == 0xAA, re...
Is there YAML syntax for sharing part of a list or map?
... what you want. It uses a special << mapping key to indicate merges, allowing an alias to a mapping (or a sequence of such aliases) to be used as an initializer to merge into a single mapping. Additionally, you can still explicitly override values, or add more that weren't present in the merge...