
There's a bug reported on Launchpad (https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1420640) that describes a similar situation. The solution is to request a lower limit of open files for the process.
There's a bug reported on Launchpad (https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1420640) that describes a similar situation. The solution is to request a lower limit of open files for the process.