heavywater/chef-graphite — pull request #1 by rkrol (2012-01-02 19:56:13+00:00)
Title: Set www-data as owner on /opt/graphite/storage/whisper directory to fix access problem

Work on Ubuntu, didn't check on other distrib.
Without this fix, I have an IOException error in /opt/graphite/storage/log/carbon-cache-a/console.log and no metrics is collected in graphite.