OperationalError: unable to open database file

[admin]

How to Reproduce

While doing a GET operation on /, Trac issued an internal error.

(please provide additional details here)

User Agent was: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/530.5 (KHTML, like Gecko) Chrome/2.0.172.39 Safari/530.5

System Information

Trac	0.11.1
Python	2.5.2 (r252:60911, Feb 21 2008, 13:11:45) [MSC v.1310 32 bit (Intel)]
setuptools	0.6c8
SQLite	3.3.4
pysqlite	2.3.2
Genshi	0.5.1
mod_python	3.3.1
Subversion	1.5.1 (r32289)
RPC	1.0.6
jQuery:	1.2.6

Python Traceback

Traceback (most recent call last):
  File "C:\TOW\Python\Lib\site-packages\trac\web\main.py", line 423, in _dispatch_request
    dispatcher.dispatch(req)
  File "C:\TOW\Python\Lib\site-packages\trac\web\main.py", line 173, in dispatch
    chosen_handler)
  File "C:\TOW\Python\Lib\site-packages\trac\web\main.py", line 286, in _pre_process_request
    chosen_handler = filter_.pre_process_request(req, chosen_handler)
  File "C:\TOW\Python\Lib\site-packages\trac\versioncontrol\api.py", line 86, in pre_process_request
    self.get_repository(req.authname).sync()
  File "C:\TOW\Python\Lib\site-packages\trac\versioncontrol\cache.py", line 89, in sync
    ','.join(["'%s'" % key for key in CACHE_METADATA_KEYS]))
  File "C:\TOW\Python\Lib\site-packages\trac\db\util.py", line 51, in execute
    return self.cursor.execute(sql)
  File "C:\TOW\Python\Lib\site-packages\trac\db\sqlite_backend.py", line 58, in execute
    args or [])
  File "C:\TOW\Python\Lib\site-packages\trac\db\sqlite_backend.py", line 50, in _rollback_on_error
    return function(self, *args, **kwargs)
OperationalError: unable to open database file

[osimons]

While experimenting with some heavy-duty 'Reload All Tabs' with Firefox cache disabled (thread on #8468), I'm quite capable of triggering this error on a regular basis. After much checking and experimentation, I think the issue boils down to the user/process maximum number of open files set by the operating system.

My OSX has a default of 256 open files (file handles?) per process, and every now and then in my logs it also came up as unable to open files like .css files as request by browser. Enable cache in Firefox again, and all pages loads fine (as less files are needed to be opened and transmitted ~simultaneously).

The above error report is from Windows, and I think 'standard' Windows (ie. ~XP) has a default maximum setting of 512 open files per user (not process). Seeing there likely won't be the kind of debug information needed to verify and compare counts of open files (and reasons for being open), I'm tending towards a 'worksforme' with 'look into server-tuning' as general advice.

[cboos]

Replying to osimons:

... I'm tending towards a 'worksforme' with 'look into server-tuning' as general advice.

Ok, that's quite reassuring! Thanks for analysing the issue.

[gopalkrao3@…]

Hi,

I am getting this error just by browsing to my repository. Originally, I got an error when I was trying to do "SVN Commit" from the "Windows Explorer" using the TortoiseSVC.

Can some one help resolve this issue? I need to submit my changes.

Thanks

Gopal

[gopalkrao3@…]

Attached file contains the screen capture of the error screen.

[gopalkrao3@…]

Hi,

After searching the net, I found that when the server (where SVN is running) has run out of disk-space, one would get the error "Can’t find a temporary directory: Internal error". This is the error I get when I am using the TortoiseSVN when I try to commit the changes.

When I try to open the repository on the web I get the error "OperationalError?: unable to open database file".

I request a quicker resolution to this problem as I would like to check-in my changes.
Regards
Gopal

[rblank]

Replying to gopalkrao3@…:

I request a quicker resolution to this problem as I would like to check-in my changes.

And you expect... what exactly? That we buy you a new disk? I suggest you talk to your IT staff about that.

Still an InstallationIssue.