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Is Zookeeper a must for Kafka?
...roducer and multiple consumers (each consumer getting its own copy of data from the broker). Given this, I do not want the overhead of using Zookeeper; Can I not just use the broker only? Why is a Zookeeper must?
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Get current time in seconds since the Epoch on Linux, Bash
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the date manpge should be changed from %s seconds since 1970-01-01 00:00:00 UTC to %s seconds since the epoch, 1970-01-01 00:00:00 UTC because I missed it in there.
– devin
Nov 18 '11 at 19:17
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Include an SVG (hosted on GitHub) in MarkDown
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Examples
All of the ways stated below will work.
I copied the SVG image from the question to a repo on github in order to create the examples below
Linking to files using relative paths (Works, but obviously only on github.com / github.io)
Code
<img src=...
How to handle code when app is killed by swiping in android?
...ground. Now if a long press the home button and kill the app by swiping it from the recent app list, none of the events like onPause() , onStop() or onDestroy() gets called rather the process is terminated. So if i want my services to stop, kill notifications and unregister listeners, how can i...
How to create a file in Android?
How to create a file, write data into it and read data from it on Android? If possible provide a code snippet.
4 Answers
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How to smooth a curve in the right way?
...adjusted relative to its neighbors. It works great even with noisy samples from non-periodic and non-linear sources.
Here is a thorough cookbook example. See my code below to get an idea of how easy it is to use. Note: I left out the code for defining the savitzky_golay() function because you can l...
Is there a “theirs” version of “git merge -s ours”?
...red way.
The only thing I've seen cause problems is if files were deleted from branchB. They show up as conflicts if something other than git did the removal.
The fix is easy. Just run git rm with the name of any files that were deleted:
git rm {DELETED-FILE-NAME}
After that, the -X theirs shou...
Is it possible to make abstract classes in Python?
...ending upon your Python version.
In Python 3.4 and above, you can inherit from ABC. In earlier versions of Python, you need to specify your class's metaclass as ABCMeta. Specifying the metaclass has different syntax in Python 3 and Python 2. The three possibilities are shown below:
# Python 3.4+
f...
What is the purpose of shuffling and sorting phase in the reducer in Map Reduce Programming?
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First of all shuffling is the process of transfering data from the mappers to the reducers, so I think it is obvious that it is necessary for the reducers, since otherwise, they wouldn't be able to have any input (or input from every mapper). Shuffling can start even before the map ...
What is the difference between new/delete and malloc/free?
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new/delete
Allocate/release memory
Memory allocated from 'Free Store'
Returns a fully typed pointer.
new (standard version) never returns a NULL (will throw on failure)
Are called with Type-ID (compiler calculates the size)
Has a version explicitly to handle arrays.
Reallocati...