Error occured reading set_view _info of ddoc ddoc1: {"error":"error","reason":"{db_open,<<\"default/master\">>,{not_found,no_db_file}}"} -----crasher: initial call: couch_set_view_group

build-1693
http://qa.hq.northscale.net/job/centos-64-2.0-new-rebalance/58/consoleFull
/testrunner -i /tmp/rebalance_in.ini get-logs=True -t rebalance.rebalancein.RebalanceInTests.rebalance_in_with_ddoc_compaction,items=1000000,nodes_in=3,replica=2,fragmentation_value=90,max_verify=100000,GROUP=IN

test update data and perform view queries to get 90% ddoc fragmentation
so, test sent request http://10.3.3.92:8092/_set_view/default/_design/ddoc1/_info and got error:

[2012-09-07 06:55:30,331] - [rest_client:286] INFO - index query url: http://10.3.3.92:8092/default/_design/ddoc1/_view/default_view4?connectionTimeout=60000&full_set=true
FAIL
[2012-09-07 06:57:45,320] - [basetestcase:69] INFO - ============== basetestcase cleanup was started for test #53 rebalance_in_with_ddoc_compaction ==============
[2012-09-07 06:57:45,349] - [bucket_helper:124] INFO - deleting existing buckets on [ip:10.3.3.92 port:8091 ssh_username:root, ip:10.3.3.99 port:8091 ssh_username:root, ip:10.3.3.93 port:8091 ssh_username:root, ip:10.3.3.91 port:8091 ssh_username:root, ip:10.3.3.82 port:8091 ssh_username:root, ip:10.3.3.94 port:8091 ssh_username:root, ip:10.3.3.97 port:8091 ssh_username:root]
[2012-09-07 06:57:45,409] - [task:1437] INFO - current amount of fragmentation = 87
[2012-09-07 06:57:47,486] - [rest_client:582] ERROR - http://10.3.3.92:8092/_set_view/default/_design/ddoc1/_info error 500 reason: error {"error":"error","reason":"{db_open,<<\"default/master\">>,{not_found,no_db_file}}"}
Exception in thread Thread-251:
Traceback (most recent call last):
File "/usr/lib64/python2.6/threading.py", line 532, in __bootstrap_inner
self.run()
File "lib/tasks/taskmanager.py", line 29, in run
task.step(self)
File "lib/tasks/task.py", line 53, in step
self.check(task_manager)
File "lib/tasks/task.py", line 1435, in check
calc_ddoc_fragmentation(rest, self.design_doc_name, self.bucket)
File "lib/tasks/task.py", line 1471, in calc_ddoc_fragmentation
bucket)
File "lib/tasks/task.py", line 1456, in aggregate_ddoc_info
status, content = rest.set_view_info(bucket, design_doc_name)
File "lib/membase/api/rest_client.py", line 528, in set_view_info
raise SetViewInfoNotFound(design_name, content)
SetViewInfoNotFound: Error occured reading set_view _info of ddoc ddoc1: {"error":"error","reason":"{db_open,<<\"default/master\">>,{not_found,no_db_file}}"}

[couchdb:info,2012-09-07T6:58:35.468,ns_1@10.3.3.92:couch_server:couch_log:info:39]Deleting database default/90
[couchdb:info,2012-09-07T6:58:35.472,ns_1@10.3.3.92:couch_server:couch_log:info:39]Deleting file /opt/couchbase/var/lib/couchbase/data/default/90.couch.17
[ns_server:info,2012-09-07T6:58:35.473,ns_1@10.3.3.92:'ns_memcached-default':ns_storage_conf:delete_couch_database:382]Deleting database <<"default/90">>: ok

[couchdb:error,2012-09-07T6:58:35.473,ns_1@10.3.3.92:<0.22340.34>:couch_log:error:42]couch_set_view_group error opening set view group `_design/ddoc1`, signature `2dd9e0f11b7dbe79af7d38f21fb413b7', from set `default`: {error,
{db_open,
<<"default/master">>,

{not_found, no_db_file}

}}
[couchdb:info,2012-09-07T6:58:35.473,ns_1@10.3.3.92:couch_server:couch_log:info:39]Deleting database default/9
[couchdb:info,2012-09-07T6:58:35.474,ns_1@10.3.3.92:<0.19393.34>:couch_log:info:39]10.3.1.14 - - GET /_set_view/default/_design/ddoc1/_info 500
[error_logger:error,2012-09-07T6:58:35.475,ns_1@10.3.3.92:error_logger:ale_error_logger_handler:log_report:72]
=========================CRASH REPORT=========================
crasher:
initial call: couch_set_view_group:init/1
pid: <0.22340.34>
registered_name: []
exception exit: {error,{db_open,<<"default/master">>,

{not_found,no_db_file}}}
in function couch_set_view_group:init/1
ancestors: [<0.22339.34>]
messages: [{'EXIT',<0.22341.34>,normal}]
links: [<0.22339.34>]
dictionary: []
trap_exit: true
status: running
heap_size: 4181
stack_size: 24
reductions: 5282
neighbours:


Alk, I saw today bug MB-6565 Rebalance exited with reason "Couldn't open database `default/0`, reason: {not_found,no_db_file}

" but I think this is another problem