#9409: OperationalError: database is locked with Python 2.6 multiprocessing and
SQLite backend
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Reporter: mrts | Owner: nobody
Status: new | Milestone:
Component: Database layer (models, ORM) | Version: 1.0
Keywords: | Stage: Unreviewed
Has_patch: 0 |
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Running the attached test cases in Ubuntu Hardy with Python 2.6, saving
models to database fails with
{{{
Process ConcurrentAccess-79:
Traceback (most recent call last):
File "/usr/local/lib/python2.6/multiprocessing/process.py", line 231, in
_bootstrap
self.run()
File "./db_locked_error.py", line 18, in run
f.save()
File "/usr/local/lib/python2.6/site-packages/Django-1.0_final-
py2.6.egg/django/db/models/base.py", line 307, in save
self.save_base(force_insert=force_insert, force_update=force_update)
File "/usr/local/lib/python2.6/site-packages/Django-1.0_final-
py2.6.egg/django/db/models/base.py", line 379, in save_base
result = manager._insert(values, return_id=update_pk)
File "/usr/local/lib/python2.6/site-packages/Django-1.0_final-
py2.6.egg/django/db/models/manager.py", line 138, in _insert
return insert_query(self.model, values, **kwargs)
File "/usr/local/lib/python2.6/site-packages/Django-1.0_final-
py2.6.egg/django/db/models/query.py", line 888, in insert_query
return query.execute_sql(return_id)
File "/usr/local/lib/python2.6/site-packages/Django-1.0_final-
py2.6.egg/django/db/models/sql/subqueries.py", line 308, in execute_sql
cursor = super(InsertQuery, self).execute_sql(None)
File "/usr/local/lib/python2.6/site-packages/Django-1.0_final-
py2.6.egg/django/db/models/sql/query.py", line 1700, in execute_sql
cursor.execute(sql, params)
File "/usr/local/lib/python2.6/site-packages/Django-1.0_final-
py2.6.egg/django/db/backends/util.py", line 19, in execute
return self.cursor.execute(sql, params)
File "/usr/local/lib/python2.6/site-packages/Django-1.0_final-
py2.6.egg/django/db/backends/sqlite3/base.py", line 167, in execute
return Database.Cursor.execute(self, query, params)
OperationalError: database is locked
}}}
--
Ticket URL: <http://code.djangoproject.com/ticket/9409>
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