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Purge Kafka Topic
...t>:2181 --alter --topic <topic name> --config retention.ms=1000
And in newer Kafka releases, you can also do it with kafka-configs --entity-type topics
kafka-configs.sh --zookeeper <zkhost>:2181 --entity-type topics --alter --entity-name <topic name> --add-config retention.ms...
What is an “unwrapped value” in Swift?
I'm learning Swift for iOS 8 / OSX 10.10 by following this tutorial , and the term " unwrapped value " is used several times, as in this paragraph (under Objects and Class ):
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Convert JSON style properties names to Java CamelCase names with GSON
...lowing setting works perfect when reading json with underscored attributes and using camelcasing in my models.
Gson gson = new GsonBuilder()
.setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
.create()
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What does T&& (double ampersand) mean in C++11?
I've been looking into some of the new features of C++11 and one I've noticed is the double ampersand in declaring variables, like T&& var .
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Is there a recommended way to return an image using ASP.NET Web API
What is the best way to return an image with 2 parameters (x and y for resize).
2 Answers
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How to limit depth for recursive file list?
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I use -print0 and xargs -0 a lot. Example: find . -maxdepth 1 -type d -print0 | xargs -0 ls -d
– Chris K
Mar 16 '14 at 21:53
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org.xml.sax.SAXParseException: Content is not allowed in prolog
...efore the XML declaration can be treated as whitespace if the document is handed as a stream of characters to an XML parser rather than as a stream of bytes.
The same can happen if schema files (.xsd) are used to validate the xml file and one of the schema files has an UTF-8 BOM.
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Getting indices of True values in a boolean list
...return a list of all the switches that are on. Here "on" will equal True and "off" equal False . So now I just want to return a list of all the True values and their position. This is all I have but it only return the position of the first occurrence of True (this is just a portion of my code...
Check if event is triggered by a human
I have a handler attached to an event and I would like it to execute only if it is triggered by a human, and not by a trigger() method. How do I tell the difference?
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AngularJS passing data to $http.get request
... {user_id: user.id}
});
See: http://docs.angularjs.org/api/ng.$http#get and https://docs.angularjs.org/api/ng/service/$http#usage (shows the params param)
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