[TAP CAPI XDCR] ep_queue_size is not zero

http://qa.hq.northscale.net/job/centos_x64--31_01--uniXDCR-P1/33/consoleFull

./testrunner -i /tmp/ubuntu-64-2.0-uniXDCR.ini GROUP=CHAIN,num_items=50000,get-cbcollect-info=True -t xdcr.uniXDCR.unidirectional.load_with_async_ops,items=100000,rdirection=unidirection,ctopology=chain,doc-ops=delete-delete,GROUP=CHAIN;P1

[Test Error]
[2014-05-02 03:01:47,989] - [task:439] WARNING - Not Ready: ep_queue_size 28016 == 0 expected on '10.3.121.65:8091', default bucket
[2014-05-02 03:01:53,009] - [task:439] WARNING - Not Ready: ep_queue_size 27536 == 0 expected on '10.3.121.65:8091', default bucket
[2014-05-02 03:01:58,023] - [task:439] WARNING - Not Ready: ep_queue_size 27151 == 0 expected on '10.3.121.65:8091', default bucket
[2014-05-02 03:02:03,039] - [task:439] WARNING - Not Ready: ep_queue_size 25204 == 0 expected on '10.3.121.65:8091', default bucket
[2014-05-02 03:02:08,058] - [task:439] WARNING - Not Ready: ep_queue_size 23931 == 0 expected on '10.3.121.65:8091', default bucket
[2014-05-02 03:02:13,077] - [task:439] WARNING - Not Ready: ep_queue_size 21608 == 0 expected on '10.3.121.65:8091', default bucket
[2014-05-02 03:02:18,090] - [task:439] WARNING - Not Ready: ep_queue_size 18100 == 0 expected on '10.3.121.65:8091', default bucket
[2014-05-02 03:02:23,142] - [task:439] WARNING - Not Ready: ep_queue_size 14200 == 0 expected on '10.3.121.65:8091', default bucket

[Test Steps]
1. Setup CAPI XDCR 4 node SRC and DEST cluster.
2. Load 1M items on SRC side.
3. Perform deletion for 30% items.
4. Wait for ep_queue_size == 0 on Source side. . --> failed here.