gem/oq-engine — pull request #1411 by micheles (2014-04-15 08:44:49+00:00)
Title: Log a warning when more than 90% of the memory is used

See https://bugs.launchpad.net/oq-engine/+bug/1307913.
The percentage could become a parameter in the configuration file, but for the moment it is fixed to 90%. It is trivial to change if needed.