“WARNING: soft rlimits too low” in MongoDB with Mac OS X

If you get this warning when you connect to mongo shell in Mac OS X:

** WARNING: soft rlimits too low. Number of files is 256, should be at least 1000

Fix “Fatal error: Allowed memory size of X bytes exhausted (tried to allocate X bytes)” with composer update

I got this error today when running composer update for one of my Symfony2 projects:

Fatal error: Allowed memory size of…

Install JDownloader in Ubuntu 12.04

sudo add-apt-repository ppa:jd-team/jdownloader
sudo apt-get update
sudo apt-get -y install jdownloader

Solve “mongodb cannot be built while v8 is active” in MacPorts

While updating all the ports of macports I got this error:

--->  Configuring mongodb
Error: mongodb cannot be built while v8 is active.
Error: Please deactivate v8 and try again.
Error: You can…