deadlock on design document update + vbucket database delete

build-700(branch-20c)

steps:

1.at the same time on the cluster do the following:
rebalance in 1+ 2 nodes
indexing of ddocs: production and development
data loading
2. run ddoc compaction
3. during ddoc compaction disable compaction on Auto-Compaction tab

result:
a)constantly error messages appear :
An error was encountered when requesting data from the server. The console has been reloaded to attempt to recover. There may be additional information about the error in the log.
b) rebalance is failed after 10 mins( the stack trace is the same as in http://www.couchbase.com/issues/browse/MB-6058)

first error on UI logs:

Client-side error-report for user "Administrator" on node 'ns_1@10.3.121.13':
User-Agent:Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.75 Safari/537.1
Browser client XHR failure encountered. (age: 1216) Diagnostic info:
s: {"url":"/couchBase/default/_design/dev_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","isLocal":false,"global":true,"type":"PUT","contentType":"application/json","processData":true,"async":true,"accepts":

{"xml":"application/xml, text/xml","html":"text/html","text":"text/plain","json":"application/json, text/javascript","*":"*/*","script":"text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"}

,"contents":{"xml":{},"html":{},"json":{},"script":{}},"responseFields":

{"xml":"responseXML","text":"responseText"}

,"converters":

{"text html":true}

,"jsonp":"callback","timeout":30000,"cache":false,"dataType":"json","data":"{\"views\":{\"vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv\":{\"map\":\"function (doc, meta) {
n if (meta.type == \\\"json\\\")

{\\n // If the document is JSON, sort by the schema\\n var keys = Object.keys(doc);\\n emit([\\\"json\\\", keys.length], keys);\\n }

else

{\\n emit([\\\"blob\\\"]);\\n }

\\n}\"}}}","dataTypes":["json"],"crossDomain":false,"hasContent":true}
xhrStatus: timeout,
xhrReadyState: 0,
errMsg: timeout,
statusCode: 0,
responseText:
undefined

stack trace from server:

[error_logger:error,2012-08-17T12:10:07.272,ns_1@10.3.121.13:error_logger:ale_error_logger_handler:log_report:72]
=========================CRASH REPORT=========================
crasher:
initial call: compaction_daemon:spawn_bucket_compactor/3-fun-2/0
pid: <0.2992.9>
registered_name: []
exception exit: {timeout,{gen_server,call,[couch_server,get_server]}}
in function gen_server:call/2
in call from couch_server:all_databases/2
in call from ns_storage_conf:bucket_databases/1
in call from compaction_daemon:check_all_dbs_exist/2
in call from compaction_daemon:'spawn_bucket_compactor/3-fun-2'/4
ancestors: [compaction_daemon,<0.26617.0>,ns_server_sup,
ns_server_cluster_sup,<0.60.0>]
messages: []
links: [<0.26621.0>]
dictionary: []
trap_exit: false
status: running
heap_size: 28657
stack_size: 24
reductions: 15225
neighbours:

whether the changes to take effect when the compression is working?