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Purge Kafka Topic
... 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-type topics
kafka-configs.sh --zookeeper <zkhost>:2181 --entity-type topics...
How to securely save username/password (local)?
...t going to verify/validate the entered user name and password, use the Rfc2898DerivedBytes class (also known as Password Based Key Derivation Function 2 or PBKDF2). This is more secure than using encryption like Triple DES or AES because there is no practical way to go from the result of RFC2898Der...
Git: How to remove file from historical commit?
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Matthew Rankin
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answered Jan 5 '12 at 11:15
sehesehe
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What's the algorithm to calculate aspect ratio?
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What is offsetHeight, clientHeight, scrollHeight?
...ight
– Muhammad Umer
Jun 17 '14 at 18:07
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The clientHeight is the visible height
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Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
...effler
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answered Oct 16 '08 at 23:06
MSNMSN
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Is leaked memory freed up when the program exits?
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edited Jul 6 '18 at 0:40
Donald Duck
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How do I make UILabel display outlined text?
...ns ! see this pic :link
– Momi
Feb 18 '11 at 11:14
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Elegant setup of Python logging in Django
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The best way I've found so far is to initialize logging setup in settings.py - nowhere else. You...
How to declare std::unique_ptr and what is the use of it?
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The constructor of unique_ptr<T> accepts a raw pointer to an object of type T (so, it acc...