As of now, the OpenMRS Wiki is not accessible with a 503 response. Is this a planned outage?
It seems to be down according to http://status.openmrs.org/Can you create a help desk case?
Just did. For now we can view cached versions from Google.
We know it's down. OpenMRS has alerting in place for this. There was an issue with one of the providers.
I revived wiki yesterday, but I will follow up with our provider to find out what happened (probably a power outage).