Our search application appears to be working fine. Crawls do succeed, queries return, and general usage appears to be unaffected.
However, with every full crawl, we get thousands of the following message appearing in the logs:
01-15-2014 02:00:57.88 NodeRunnerContent1-7a4b7212-aa0 (0x0D10) 0x06CC Search Content Processing ajyhd Unexpected DisplayAuthorEvaluator : (IStringField)aliasField == null
Many google attempts have resulted in literally zero results, so I know this is a long shot. Does anyone have any ideas even of where I might look for further diagnosis?
(This is Sharepoint 2013, new farm, but with some content migrated from 2010)