The memcache protocol requires that all lines in the server response end with CRLN (\r\n). The Starling server doesn’t strictly obey this for the STATS command. The fix is trivial and the author has been notified of the fix.
Edit lib/starling/handler.rb and add the following gsub right before .freeze in the STATS_RESPONSE:
%sEND\r\n”.gsub(/\r?\n/, “\r\n”).freeze
And the same for QUEUE_STATS_RESPONSE:
STAT queue_%s_expired_items %d\n”.gsub(/\r?\n/, “\r\n”).freeze
