Those who administer production Unix systems have undoubtedly encountered the problem of frozen processes before. They just sit around, consuming CPU and/or memory indefinitely until you forcefully shut them down. Phusion Passenger 3 – our high-performance and advanced web application server – was not completely immune to this problem either. That is until today, because we have just implemented a
![The right way to deal with frozen processes on Unix](https://cdn-ak-scissors.b.st-hatena.com/image/square/b6a8c6575b26a4f76aa851e05754a553a5c07699/height=288;version=1;width=512/http%3A%2F%2Fblog.phusion.nl%2Fwp-content%2Fuploads%2F2012%2F07%2FPassenger_chair_256x256.jpg)