[collectd] Exec plugin - forked process freezing with 4.10.1 on Ubuntu 12.04 (precise)

[Jesse Reynolds]

Hello

We've been using the Exec plugin to great effect on our collectd servers running on Ubuntu 10.04 (lucid) with collectd version 4.9.x but after upgrading to Ubuntu 12.04 (precise) and using the new version of collectd it ships with (4.10.1) the Exec plugin is now intermittently failing. What happens is similar to a thread from 2010 where the collectd process forks but then freezes up before exec'ing the external command specified in the Exec plugin definition. 

I have reproduced this on my laptop in a VirtualBox VM running precise and the same version of collectd. The details are here: https://gist.github.com/2878994 ... 

This feels like a collectd bug, but before I raise a bug report is there anything obvious anyone can think of here that I might have missed? 

Thank you
Jesse

   Jesse Reynolds
   R&D Engineer
   Bulletproof Networks
   Mission Critical Hosting
   http://www.bulletproof.net/ 
   tel: 1300 663 903