[Zope] Mouting + Logging Errors after Zope Upgrade 2.7.4 --> 2.11.1

[Wolfgang Lausenhammer]

Hello!

My company wants me to upgrade the timeworn zope-2.7.4 to one of the 
newest ones available.
I decided to take zope-2.11.1 but after installing and running it in 
debug-mode i get the following error-messages:

2008-08-01T09:04:39 ERROR Zope.ZODBMountPoint Failed to mount database. 
ZODB.lock_file.LockError (Couldn't lock 
'D:\\workspace_zope\\xla-2008/var/Stdcontainer_o.fs.lock')
Traceback (most recent call last):
  File 
"D:\zope\2.11.1\Zope\lib\python\Products\ZODBMountPoint\MountedObject.py", 
line 257, in _getOrOpenObject
  File 
"D:\zope\2.11.1\Zope\lib\python\Products\ZODBMountPoint\MountedObject.py", 
line 147, in _getMountedConnection
  File 
"D:\zope\2.11.1\Zope\lib\python\Products\ZODBMountPoint\MountedObject.py", 
line 157, in _getDB
  File "D:\zope\2.11.1\Zope\lib\python\Zope2\Startup\datatypes.py", line 
288, in getDatabase
    db = factory.open(name, self.databases)
  File "D:\zope\2.11.1\Zope\lib\python\Zope2\Startup\datatypes.py", line 
186, in open
    DB = self.createDB(database_name, databases)
  File "D:\zope\2.11.1\Zope\lib\python\Zope2\Startup\datatypes.py", line 
183, in createDB
    return ZODBDatabase.open(self, databases)
  File "D:\zope\2.11.1\Zope\lib\python\ZODB\config.py", line 97, in open
  File "D:\zope\2.11.1\Zope\lib\python\ZODB\config.py", line 135, in open
  File "D:\zope\2.11.1\Zope\lib\python\ZODB\FileStorage\FileStorage.py", 
line 113, in __init__
  File "D:\zope\2.11.1\Zope\lib\python\ZODB\lock_file.py", line 80, in 
__init__
  File "D:\zope\2.11.1\Zope\lib\python\ZODB\lock_file.py", line 42, in 
_lock_file
LockError: Couldn't lock 
'D:\\workspace_zope\\xla-2008/var/Stdcontainer_o.fs.lock'

....

TypeError: not all arguments converted during string formatting
Traceback (most recent call last):
  File "D:\zope\2.11.1\Python\Lib\logging\__init__.py", line 731, in emit
  File "D:\zope\2.11.1\Python\Lib\logging\__init__.py", line 617, in 
format
  File "D:\zope\2.11.1\Python\Lib\logging\__init__.py", line 405, in 
format

  File "D:\zope\2.11.1\Python\Lib\logging\__init__.py", line 276, in 
getMessage
    self.cfg.eventlog()


These are not the only ones, I get the first one for 5/18 databases and 
the second one 6 times when running the /manage site
Do I have to be worried about those error messages or not?

Another thing is that those messages appear only once every restart but 
the functionality of the pages hostet isn't affected...

Hope you can help me,
-- Wolfgang
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