Downloaded and deployed Kafka adaptor as per instructions. Did not appear in connector list. Stopped service, cleared cache, restarted service - still did not work.
The COT adaptors do deploy with the same instructions... Looking for vplechnoy to confirm if this is broken, or if there is secret sauce I am missing -
COT connector: http://www.arcgis.com/home/item.html?id=067feaad95964bc5889d6f44f774b370