got problems, when trying to stop a 2-dim param-burst

following a log-dump. What is imporant, that we have a file-acces conflict(Der Prozess kann nicht auf die Datei zugreifen, da sie von einem anderen Prozess verwendet wird):
2012-07-31 11:15:28,793 - DEBUG - tvb.core.entities.storage.operationDAO - No operation process found for operation id=372.
2012-07-31 11:15:29,012 - DEBUG - tvb.core.entities.storage.operationDAO - No operation process found for operation id=131.
2012-07-31 11:15:29,230 - DEBUG - tvb.core.entities.storage.operationDAO - No operation process found for operation id=252.
2012-07-31 11:15:29,448 - DEBUG - tvb.core.entities.storage.operationDAO - No operation process found for operation id=373.
2012-07-31 11:15:29,667 - DEBUG - tvb.core.entities.storage.operationDAO - No operation process found for operation id=132.
2012-07-31 11:15:30,213 - DEBUG - tvb.core.entities.storage.operationDAO - No operation process found for operation id=253.
2012-07-31 11:15:30,290 - DEBUG - tvb.core.entities.storage.operationDAO - No operation process found for operation id=374.
127.0.0.1 - - [31/Jul/2012:11:15:30] "POST /burst/remove_burst_entity/3 HTTP/1.1" 200 28 "http://127.0.0.1:8081/burst/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:
14.0) Gecko/20100101 Firefox/14.0.1"
2012-07-31 11:15:30,602 - INFO - cherrypy.access.156997968 - 127.0.0.1 - - [31/Jul/2012:11:15:30] "POST /burst/remove_burst_entity/3 HTTP/1.1" 200 28 "http://12
7.0.0.1:8081/burst/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1"
127.0.0.1 - - [31/Jul/2012:11:15:30] "POST /burst/get_history_status HTTP/1.1" 200 57 "http://127.0.0.1:8081/burst/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.
0) Gecko/20100101 Firefox/14.0.1"
2012-07-31 11:15:30,650 - INFO - cherrypy.access.156997968 - 127.0.0.1 - - [31/Jul/2012:11:15:30] "POST /burst/get_history_status HTTP/1.1" 200 57 "http://127.0
.0.1:8081/burst/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1"
127.0.0.1 - - [31/Jul/2012:11:15:30] "POST /burst/get_history_status HTTP/1.1" 200 57 "http://127.0.0.1:8081/burst/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.
0) Gecko/20100101 Firefox/14.0.1"
2012-07-31 11:15:30,697 - INFO - cherrypy.access.156997968 - 127.0.0.1 - - [31/Jul/2012:11:15:30] "POST /burst/get_history_status HTTP/1.1" 200 57 "http://127.0
.0.1:8081/burst/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1"
2012-07-31 11:15:34,176 - DEBUG - tvb.core.entities.file.fileshelper - Creating folder:C:\Users\jmersmann.CODEBOX\TVB\My_testproject\12
2012-07-31 11:15:34,237 - DEBUG - tvb.core.entities.file.fileshelper - Creating folder:C:\Users\jmersmann.CODEBOX\TVB\My_testproject\12
2012-07-31 11:15:34,285 - DEBUG - tvb.core.entities.file.fileshelper - Creating folder:C:\Users\jmersmann.CODEBOX\TVB\My_testproject\12
2012-07-31 11:15:34,315 - DEBUG - tvb.core.entities.file.fileshelper - Creating folder:C:\Users\jmersmann.CODEBOX\TVB\My_testproject\12
2012-07-31 11:15:34,394 - DEBUG - tvb.core.entities.file.fileshelper - Creating folder:C:\Users\jmersmann.CODEBOX\TVB\My_testproject\12
2012-07-31 11:15:35,112 - DEBUG - tvb.core.entities.file.fileshelper - Creating folder:C:\Users\jmersmann.CODEBOX\TVB\My_testproject\133
2012-07-31 11:15:35,144 - DEBUG - tvb.core.entities.file.fileshelper - Creating folder:C:\Users\jmersmann.CODEBOX\TVB\My_testproject\133
2012-07-31 11:15:35,160 - DEBUG - tvb.core.entities.file.fileshelper - Creating folder:C:\Users\jmersmann.CODEBOX\TVB\My_testproject\133
2012-07-31 11:15:35,190 - DEBUG - tvb.core.entities.file.fileshelper - Creating folder:C:\Users\jmersmann.CODEBOX\TVB\My_testproject\133
2012-07-31 11:15:35,221 - DEBUG - tvb.core.entities.file.fileshelper - Creating folder:C:\Users\jmersmann.CODEBOX\TVB\My_testproject\133
2012-07-31 11:15:35,424 - ERROR - tvb.core.entities.file.fileshelper - [Error 32] Der Prozess kann nicht auf die Datei zugreifen, da sie von einem anderen Proze
ss verwendet wird: u'C:\\Users\\jmersmann.CODEBOX\\TVB\\My_testproject\\254
WaveletCoefficients_9ddd9911-daef-11e1-aa7f-90a4dea5d50f.h5'
[31/Jul/2012:11:15:35] HTTP
Request Headers:
Content-Length: 0
PRAGMA: no-cache
COOKIE: session_id=6889eaadb9c68fe8cd84cb9c90befc43d723ba53
HOST: 127.0.0.1:8081
CONNECTION: keep-alive
CACHE-CONTROL: no-cache
Remote-Addr: 127.0.0.1
ACCEPT: /
USER-AGENT: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1
X-REQUESTED-WITH: XMLHttpRequest
ACCEPT-LANGUAGE: de-de,de;q=0.8,en-us;q=0.5,en;q=0.3
REFERER: http://127.0.0.1:8081/burst/
ACCEPT-ENCODING: gzip, deflate
2012-07-31 11:15:35,424 - INFO - cherrypy.error.156997968 - [31/Jul/2012:11:15:35] HTTP
Request Headers:
Content-Length: 0
PRAGMA: no-cache
COOKIE: session_id=6889eaadb9c68fe8cd84cb9c90befc43d723ba53
HOST: 127.0.0.1:8081
CONNECTION: keep-alive
CACHE-CONTROL: no-cache
Remote-Addr: 127.0.0.1
ACCEPT: /
USER-AGENT: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1
X-REQUESTED-WITH: XMLHttpRequest
ACCEPT-LANGUAGE: de-de,de;q=0.8,en-us;q=0.5,en;q=0.3
REFERER: http://127.0.0.1:8081/burst/
ACCEPT-ENCODING: gzip, deflate
[31/Jul/2012:11:15:35] HTTP Traceback (most recent call last):
File "cherrypy_cprequest.pyc", line 656, in respond
File "cherrypy\lib\encoding.pyc", line 188, in _call_
File "cherrypy_cpdispatch.pyc", line 34, in _call_
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File "C:\Users\jmersmann.CODEBOX\Desktop\TVB_Distribution\library.zip\tvb\interfaces\web\controllers\burst\burstcontroller.py", line 282, in remove_burst_enti
ty
removed = self.burst_service.remove_burst(burst_id)
File "C:\Users\jmersmann.CODEBOX\Desktop\TVB_Distribution\library.zip\tvb\core\services\burstservice.py", line 424, in remove_burst
service.remove_datatype(burst_entity.project_id, datatype.gid, True)
File "C:\Users\jmersmann.CODEBOX\Desktop\TVB_Distribution\library.zip\tvb\core\services\projectservice.py", line 593, in remove_datatype
self.structure_helper.remove_operation_data(project.name, datatype.fk_from_operation)
File "C:\Users\jmersmann.CODEBOX\Desktop\TVB_Distribution\library.zip\tvb\core\entities\file\fileshelper.py", line 203, in remove_operation_data
raise FileStructureException("Could not remove files for OP" + str(operation_id))
FileStructureException