id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
22879	Database errors coming from cursor iterator are not converted to Django database errors	denisenkom@…	nobody	"Here is one possible situation:

{{{
Traceback (most recent call last):
  File ""/opt/python-2.7/lib/python2.7/threading.py"", line 552, in __bootstrap_inner
    self.run()
  File ""/opt/python-2.7/lib/python2.7/threading.py"", line 505, in run
    self.__target(*self.__args, **self.__kwargs)
  File ""/home/denisenk/django-sqlserver/env/src/django/tests/select_for_update/tests.py"", line 245, in raw
    connection.ops.for_update_sql(nowait=True)
  File ""/home/denisenk/django-sqlserver/env/src/django/django/db/models/query.py"", line 1427, in __iter__
    for values in query:
  File ""/home/denisenk/django-sqlserver/env/lib/python2.7/site-packages/six.py"", line 473, in next
    return type(self).__next__(self)
  File ""/home/denisenk/django-sqlserver/env/src/pytds/pytds/__init__.py"", line 703, in __next__
    row = self.fetchone()
  File ""/home/denisenk/django-sqlserver/env/src/pytds/pytds/__init__.py"", line 676, in fetchone
    row = self._session.fetchone()
  File ""/home/denisenk/django-sqlserver/env/src/pytds/pytds/tds.py"", line 3429, in fetchone
    if not self.next_row():
  File ""/home/denisenk/django-sqlserver/env/src/pytds/pytds/tds.py"", line 3443, in next_row
    self.process_end(marker)
  File ""/home/denisenk/django-sqlserver/env/src/pytds/pytds/tds.py"", line 2654, in process_end
    self.raise_db_exception()
  File ""/home/denisenk/django-sqlserver/env/src/pytds/pytds/tds.py"", line 2443, in raise_db_exception
    raise ex
OperationalError: Lock request time out period exceeded.
}}}"	Bug	closed	Database layer (models, ORM)	1.6	Normal	fixed			Ready for checkin	1	0	1	0	0	0