You'll get an explanation for this error in logs/error_log

But i'm going to guess that the PHP process ram out of memory and died.

http://docs.observium.org/faq/#poller-or-discovery-exits-with-php-fatal-error-allowed-memory-size-of-x-bytes-exhausted-tried-to-allocate-x-bytes

(the filename might not be exactly that, but it'll definitely be the apache one and not the cli one)

adam.

On 24/05/2017 20:09:08, Jay Christopher <jchristopher@shutterfly.com> wrote:

Hey everyone,

I'm in the middle of standing up a new observium box and running into an issue where I create an alert checker for port errors. After creating the new checker, I click on rebuild and then get an HTTP 500 error. Attached is a screenshot of the configuration of the alert checker. I'm running 17.5.8561 (rolling) but did occur in a previous release and was hoping that upgrading would fix it but did not.

--

Jay