Rebalance Failing due to crash on capi_set_view_manager

Couchbase node is going into pending state due to crash on view engine, everytime ehenver node added or node removal , rebalance is stuck in middle below is the log. from the log looks like in during rebalance, index update sometime files which is getting updated might be opened by someother process, . Everything works fine after restart of couchbase service in that not node . same issues repeated many times.
=========================CRASH REPORT=========================
crasher:
initial call: misc:turn_into_gen_server/4
pid: <11480.25540.15>
registered_name: 'capi_set_view_manager-pttdata'
exception throw:

{file_already_opened, "/Database/CouchIndex/@indexes/pttdata/main_22f1755154c12b111f384de2a5c566e2.spatial.1"}

in function couch_set_view:get_group_server/2 (/home/couchbase/jenkins/workspace/sherlock-unix/couchdb/src/couch_set_view/src/couch_set_view.erl, line 437)
in call from couch_set_view:define_group/4 (/home/couchbase/jenkins/workspace/sherlock-unix/couchdb/src/couch_set_view/src/couch_set_view.erl, line 143)
in call from timer:tc/3 (timer.erl, line 194)
in call from capi_set_view_manager:'maybe_define_group/2-fun-1'/3 (src/capi_set_view_manager.erl, line 305)
in call from capi_set_view_manager:maybe_define_group/2 (src/capi_set_view_manager.erl, line 305)
in call from capi_set_view_manager:'init/1-lc$^0/1-0'/2 (src/capi_set_view_manager.erl, line 182)
in call from capi_set_view_manager:init/1 (src/capi_set_view_manager.erl, line 182)
in call from misc:turn_into_gen_server/4 (src/misc.erl, line 608)
ancestors: [<0.9084.98>,'single_bucket_kv_sup-pttdata',ns_bucket_sup,
ns_bucket_worker_sup,ns_server_sup,ns_server_nodes_sup,
<0.4205.71>,ns_server_cluster_sup,<0.88.0>]
messages: []
links: [<0.9084.98>,<11480.25544.15>]
dictionary: []
trap_exit: false
status: running
heap_size: 4185
stack_size: 27
reductions: 26448
neighbours:

[error_logger:info,2016-05-04T12:08:19.033+05:30,ns_1@10.2.0.184:error_logger<0.6.0>:ale_error_logger_handler:do_log:203]