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Purge Kafka Topic
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Temporarily update the retention time on the topic to one second:
kafka-topics.sh --zookeeper <zkhost>:2181 --alter --topic <topic name> --config retention.ms=1000
And in newer Kafka releases, you can also do it with kafka-configs --entity-typ...
“Conversion to Dalvik format failed with error 1” on external JAR
In my Android application in Eclipse I get the following error.
71 Answers
71
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How to sort an array by a date property
Say I have an array of a few objects:
17 Answers
17
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Does JavaScript have “Short-circuit” evaluation?
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@GibboK. YES in the standard! But good comment, as in times of JIT-compiling-magic in javascript implementations, one does really want to know if something is "the standard" , or potentially subject to the implementation. The way a condition statement with Binary Logical Operato...
How to inspect Javascript Objects
...oin(i+'\n');
}
// example of use:
alert(xinspect(document));
Edit: Some time ago, I wrote my own inspector, if you're interested, I'm happy to share.
Edit 2: Well, I wrote one up anyway.
share
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how do I use UIScrollView in Interface Builder?
While I've used UIScrollView successfully in the past by manipulating it programmatically, I'm having trouble getting it to work by setting it up exclusively in Interface Builder.
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How to preserve line breaks when storing a command output to a variable in bash?
I’m using bash shell on Linux. I have this simple script …
2 Answers
2
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WPF User Control Parent
I have a user control that I load into a MainWindow at runtime. I cannot get a handle on the containing window from the UserControl .
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How to avoid type safety warnings with Hibernate HQL results?
...is a good way to do it, though it does involve a bit of finger typing each time you call q.list().
There are two other techniques I'd suggest:
Write a cast-helper
Simply refactor all your @SuppressWarnings into one place:
List<Cat> cats = MyHibernateUtils.listAndCast(q);
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public stati...
How to send PUT, DELETE HTTP request in HttpURLConnection?
...oOutput(true);
con.setDoInput(true);
con.setConnectTimeout(60000); //60 secs
con.setReadTimeout(60000); //60 secs
con.setRequestProperty("Accept-Encoding", "Your Encoding");
con.setRequestProperty("Content-Type", "Your Encoding");
}...