queries return "error":"no_active_vbuckets","reason":"Cannot execute view query since the node has no active vbuckets" during rebalance in 1->2

Test case info:

Test uses employee data set:
-documents are structured as

{"name": name<string>, "join_yr" : year<int>, "join_mo" : month<int>, "join_day" : day<int>, "email": email<string>, "job_title" : title<string>, "type" : type<string>, "desc" : desc<string>}

Steps to repro:
1. Start load data (1M items, reproduced for 200 000 also)
2. start rebalance
3. start querying
first queries, when rebalance progress is less than 1 % queries return no_active_vbuckets errors

Views structures are:
5 ddocs, 1 view per ddoc
Views : ['test_view-be32a4c : map_fn=function (doc)

{ if(doc.job_title !== undefined) emit([doc.join_yr, doc.join_mo, doc.join_day], [doc.name, doc.email] ); }, reduce_fn=None', 'test_view-c35c1e3 : map_fn=function (doc) { if(doc.job_title !== undefined) { var myregexp = new RegExp("^UI "); if(doc.job_title.match(myregexp)){ emit([doc.join_yr, doc.join_mo, doc.join_day], [doc.name, doc.email] );}}}, reduce_fn=None', 'test_view-83e8cd6 : map_fn=function (doc) { if(doc.job_title !== undefined) { var myregexp = new RegExp("^System "); if(doc.job_title.match(myregexp)){ emit([doc.join_yr, doc.join_mo, doc.join_day], [doc.name, doc.email] );}}}, reduce_fn=None', 'test_view-b04a750 : map_fn=function (doc) { if(doc.job_title !== undefined) { var myregexp = new RegExp("^Senior "); if(doc.job_title.match(myregexp)){ emit([doc.join_yr, doc.join_mo, doc.join_day], [doc.name, doc.email] );}}}, reduce_fn=None', 'test_view-728563e : map_fn=function (doc) { if(doc.job_title !== undefined) emit([doc.join_yr, doc.join_mo, doc.join_day], [doc.name, doc.email] ); }

, reduce_fn=_count', 'test_view-4c75454 : map_fn=function (doc, meta) { if(doc.job_title !== undefined) { var myregexp = new RegExp("^admin"); if(meta.id.match(myregexp))

{ emit([doc.join_yr, doc.join_mo, doc.join_day], [doc.name, doc.email] );}

}}, reduce_fn=None']

Exact query example:
http://10.2.2.63:8092/default/_design/test_view-41833a2/_view/test_view-41833a2?debug=true&start_key=%5B2008%2C7%2Cnull%5D&connection_timeout=60000

test to reproduce issue:
-t viewquerytests.ViewQueryTests.test_employee_dataset_startkey_endkey_queries_rebalance_incrementaly,skip_rebalance=true

logs are attached