{UPR} :: Rebalance stuck with rebalance-out due to indexing stuck

1033, centos 6x

1. Create 4 node cluster
2. Create default bucket
3. Add 1 K items
4. Create 3 views and start querying
5. Rebalance-out 1 node

Step 4 and Step 5 act in parallel

Rebalance is stuck

looked at couchdb log, found the following error across different machines in cluster

[couchdb:error,2014-07-26T18:47:27.450,ns_1@10.6.2.146:<0.15845.1>:couch_log:error:44]Cleanup process <0.16158.1> for set view `default`, replica (prod) group `_design/default_view`, died with reason: stopped

[couchdb:error,2014-07-26T18:47:27.557,ns_1@10.6.2.146:<0.15845.1>:couch_log:error:44]Cleanup process <0.16199.1> for set view `default`, replica (prod) group `_design/default_view`, died with reason: stopped

[couchdb:error,2014-07-26T18:47:27.745,ns_1@10.6.2.146:<0.15845.1>:couch_log:error:44]Cleanup process <0.16230.1> for set view `default`, replica (prod) group `_design/default_view`, died with reason: stopped

[couchdb:error,2014-07-26T18:47:27.783,ns_1@10.6.2.146:<0.15845.1>:couch_log:error:44]Cleanup process <0.16240.1> for set view `default`, replica (prod) group `_design/default_view`, died with reason: stopped

[couchdb:error,2014-07-26T18:47:27.831,ns_1@10.6.2.146:<0.15845.1>:couch_log:error:44]Cleanup process <0.16250.1> for set view `default`, replica (prod) group `_design/default_view`, died with reason: stopped

[couchdb:error,2014-07-26T18:47:27.877,ns_1@10.6.2.146:<0.15845.1>:couch_log:error:44]Cleanup process <0.16260.1> for set view `default`, replica (prod) group `_design/default_view`, died with reason: stopped

TEST CASE ::
./testrunner -i ../palm.ini get-cbcollect-info=False,get-logs=False,stop-on-failure=False,get-coredumps=False,force_kill_memached=False,verify_unacked_bytes=True -t rebalance.rebalance_progress.RebalanceProgressTests.test_progress_rebalance_out,nodes_init=4,nodes_out=1,GROUP=P0,skip_cleanup=True,blob_generator=false