id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
6427	OperationalError: database is locked	Andrey Semashev	Douglas Gregor	"==== How to Reproduce ====

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

''(please provide additional details here)''

Request parameters:
{{{
{'col': [u'id', u'summary', u'status', u'type', u'milestone', u'component'],
 'component': u'exception',
 'order': u'priority',
 'status': [u'assigned', u'new', u'reopened']}
}}}

User agent: `#USER_AGENT#`

==== System Information ====
''System information not available''

==== Enabled Plugins ====
''Plugin information not available''

==== Python Traceback ====
{{{
Traceback (most recent call last):
  File ""build/bdist.linux-i686/egg/trac/web/main.py"", line 513, in _dispatch_request
    dispatcher.dispatch(req)
  File ""build/bdist.linux-i686/egg/trac/web/main.py"", line 258, in dispatch
    req.session.save()
  File ""build/bdist.linux-i686/egg/trac/web/session.py"", line 88, in save
    @self.env.with_transaction()
  File ""build/bdist.linux-i686/egg/trac/db/api.py"", line 77, in transaction_wrapper
    fn(ldb)
  File ""build/bdist.linux-i686/egg/trac/web/session.py"", line 110, in delete_session_cookie
    """""", (self.sid,))
  File ""build/bdist.linux-i686/egg/trac/db/util.py"", line 65, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File ""build/bdist.linux-i686/egg/trac/db/sqlite_backend.py"", line 78, in execute
    result = PyFormatCursor.execute(self, *args)
  File ""build/bdist.linux-i686/egg/trac/db/sqlite_backend.py"", line 56, in execute
    args or [])
  File ""build/bdist.linux-i686/egg/trac/db/sqlite_backend.py"", line 48, in _rollback_on_error
    return function(self, *args, **kwargs)
OperationalError: database is locked
}}}"	Bugs	new	To Be Determined	trac / subversion	Boost 1.48.0	Problem