The wiki.opendaylight.org will be migrating from Mediawiki to Confluence, which is currently scheduled for Feb 14, 22:00 - 22:30 UTC (14:00 PT).  Expected downtime is approximately 5 minutes.  Staff will be on standby to help resolve any potential issues.  There is also a rollback plan if critical issues arise.
The Mediawiki content will remain available at https://wiki-archive.opendaylight.org