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What's the Point of Multiple Redis Databases?
...nto separate databases as I sometimes need to make use of the keys command on one specific kind of data, and wanted to separate it to make that faster.
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Nexus 7 not visible over USB via “adb devices” from Windows 7 x64
I have done the obvious -- the USB driver was installed from the latest Android SDK, and USB debugging was turned on in the tablet.
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Really weird eclipse keyboard behavior/bug?
I am using Helios on Mac Snow Leopard. I don't know why but all of a sudden my arrow keys and delete button start not working only on Eclipse (so Eclipse ignores them) but the rest of the buttons works just fine. There is no exception/error thrown anywhere on the screen. I don't exactly know how to ...
How to fix Error: listen EADDRINUSE while using nodejs?
...er to is already in use.
So, in your case, there must be running a server on port 80 already.
If you have another webserver running on this port you have to put node.js behind that server and proxy it through it.
You should check for the listening event like this, to see if the server is really l...
Change color of UISwitch in “off” state
I've learned that we can change the UISwitch button appearance in its "on" state,
but is it also possible to change the color of the UISwitch in the "off" state?
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Failed to install Python Cryptography package with PIP and setup.py
When I try to install the Cryptography package for Python through either pip install cryptography or by downloading the package from their site and running python setup.py , I get the following error:
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C++11 std::threads vs posix threads
Why should I prefer one or another in practice?
What are technical differences except that std::thread is a class?
4 Answ...
How to detect user inactivity in Android
User start my app and logs in.
Selects Session Timeout to be 5 mins.
Does some operations on the app. (all in foreground)
Now User bring Myapp to background and starts some other app.
----> Count down timer starts and logs out user after 5 mins
OR user turns the screen OFF.
----> Cou...
How to deal with a slow SecureRandom generator?
If you want a cryptographically strong random numbers in Java, you use SecureRandom . Unfortunately, SecureRandom can be very slow. If it uses /dev/random on Linux, it can block waiting for sufficient entropy to build up. How do you avoid the performance penalty?
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Cannot install Lxml on Mac os x 10.9
... kqw
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answered Oct 26 '13 at 9:10
tinyleetinylee
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