Thanks Jess! I nuked the DB as a last resort after reading about it in some other threads. I was working on a test server, so no harm done. The error persisted in the logs both before and after, so I'm optimistic that your solution will fix it (I nuked the DB, but not the /opt/kaltura directory). Thanks too for confirming that the db-update is no longer needed.
I'll give it a try and report back.