We are on Sitecore 8.1 rev. 160519 (Update-3) and using SOLR 6.2.1
Logs on one of our CM server is suddenly overflowing with the following error message:
Sitecore.Social: Social messages index could not be determined for master database. Messages root path: /sitecore/social/Messages. Please check indexes configuration.
This behavior is sudden, and does not seem to have been predicated by any code/content changes. Performance on our CM/CD servers is suddenly at a crawl.
As always, any help would be greatly appreciated.