Incorrect stats shown when memcache client is killed on one of the data nodes

Install CB Server on 4 nodes.
2 - data nodes + n1ql
2 - index nodes
Create a bucket and create a secondary index
start loading data to the bucket using cbworkloadgen
kill memcached on one of the data nodes
wait of index to stop indexing. You will see that index that has index some of the items, query the UI and the stats. There should num_docs_pending to have the queue.
Using a query, query the secondary index and check the results. The results are accurate.
There seems to be some issue with stats showing up extra numbers.