Exchange 2013 Critical Search event 2158 with event 1006

Hi,

I'm running Exchange 2013 CU1.  I've noticed in the event logs two errors that continuously keep popping up relating to searching.  Actual searching of mail seems fine and the mail databases are in a healthy state.

Event ID 2158 Unified logging service
Event 20 (Search) of severity 'Critical' occurred 11 more time(s) and was suppressed in the event log

and

Event ID 1006 General
The FastFeeder component received a connection exception from FAST. Error details: Microsoft.Exchange.Search.Fast.FastConnectionException: Connection to the Content Submission Service has failed. ---> Microsoft.Ceres.External.ContentApi.ConnectionException: Recovery failed after 0 retries
   at Microsoft.Ceres.External.ContentApi.DocumentFeeder.DocumentFeeder.CheckRecoveryFailed()
   at Microsoft.Ceres.External.ContentApi.DocumentFeeder.DocumentFeeder.WaitForAvailable()
   at Microsoft.Ceres.External.ContentApi.DocumentFeeder.DocumentFeeder.SubmitDocument(Document document, TimeSpan timeout)
   at Microsoft.Ceres.External.ContentApi.DocumentFeeder.DocumentFeeder.SubmitDocument(Document document)
   at Microsoft.Exchange.Search.Fast.FastFeeder.SubmitDocumentInternal(Object state)
   --- End of inner exception stack trace ---