UPDATE (2017-10-20): it has recently been brought to my attention that this gist has been circulated amongst Sensu users as a sort of best practice or "guide". This gist was never meant to be adopted as a long-term solution, but rather an alternative/temporary solution while many changes regarding Sensu event filtering were "in-flight". Many more words regarding changes to event filtering have been captured on the Sensu blog since the writing of this gist: https://blog.sensuapp.org/deprecating-event-filtering-in-sensu-plugin-b60c7c500be3. The TL;DR here is: use the new built-in occurrence filtering that has been available in Sensu Core since version 0.26.0 (release notes).
Hi friends.
There has been a lot of confusion over the past few months about how the Sensu check definition attributes occurrences and refresh actually work. The attributes occurrences and refresh are not (currently) a part of the Sensu [check definitio