Add query for bug 1275256

Since this is a timeout we'd be hard-pressed to find anything useful in
the actual server logs, especially with oslo.messaging currently
cluttering up the logs, and this is a pretty specific failure message so
it should be a decent fingerprint until we can get the actual bug fixed
since this one is hitting quite frequently now.

Related-Bug: #1275256

Change-Id: I4c162e898a4eba8ccf800df810550ba629714aa5