MB-11830 cached failover table even if empty
MB-11830 cached failover table even if empty

needed for cbtransfer which needs to parse table in json
even if it is empty

Change-Id: I47c909ce32f1b8e137220bb0f20e0964ad921ba8
Reviewed-on: http://review.couchbase.org/39967
Reviewed-by: Chiyoung Seo <fcffc23db27b19ee4ebba46695ee6b50e09216a2@couchbase.com>
Tested-by: Sundararaman Sridharan <333a3f71d3ad6e01fc953c4fa06bc1f3cd014910@couchbase.com>

jimwwalker/ep-engine,daverigby/kv_engine,couchbase/ep-engine,couchbase/ep-engine,hisundar/ep-engine,jimwwalker/ep-engine,daverigby/kv_engine,daverigby/kv_engine,sriganes/ep-engine,membase/ep-engine,sriganes/ep-engine,couchbase/ep-engine,owendCB/ep-engine,teligent-ru/ep-engine,jimwwalker/ep-engine,membase/ep-engine,sriganes/ep-engine,daverigby/ep-engine,owendCB/ep-engine,teligent-ru/ep-engine,sriganes/ep-engine,daverigby/ep-engine,daverigby/ep-engine,teligent-ru/ep-engine,hisundar/ep-engine,membase/ep-engine,daverigby/kv_engine,daverigby/ep-engine,membase/ep-engine,hisundar/ep-engine,owendCB/ep-engine,owendCB/ep-engine,couchbase/ep-engine,jimwwalker/ep-engine,hisundar/ep-engine,teligent-ru/ep-engine