TaskState.args and TaskState.kwargs in djcelery model are currently limited to 200 chars.

[tdcarrol]

I'm using some tasks with very long kwargs. When running the camera I received this stack trace:

Traceback (most recent call last):
File "manage.py", line 11, in
execute_manager(settings)
File "/opt/py26/lib/python2.6/site-packages/django/core/management/init.py", line 438, in execute_manager
utility.execute()
File "/opt/py26/lib/python2.6/site-packages/django/core/management/init.py", line 379, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/opt/py26/lib/python2.6/site-packages/django/core/management/base.py", line 191, in run_from_argv
self.execute(_args, *_options.dict)
File "/opt/py26/lib/python2.6/site-packages/django/core/management/base.py", line 220, in execute
output = self.handle(_args, *_options)
File "/opt/py26/lib/python2.6/site-packages/djcelery/management/commands/celerycam.py", line 19, in handle
run_celeryev(_args, *_options)
File "/opt/py26/lib/python2.6/site-packages/celery/bin/celeryev.py", line 49, in run_celeryev
loglevel=loglevel, logfile=logfile)
File "/opt/py26/lib/python2.6/site-packages/celery/events/snapshot.py", line 96, in evcam
cam.cancel()
File "/opt/py26/lib/python2.6/site-packages/celery/events/snapshot.py", line 61, in cancel
self._tref()
File "/opt/py26/lib/python2.6/site-packages/celery/utils/timer2.py", line 41, in call
return self.fun(_self.args, *_self.kwargs)
File "/opt/py26/lib/python2.6/site-packages/celery/utils/timer2.py", line 192, in _reschedules
return fun(_args, *_kwargs)
File "/opt/py26/lib/python2.6/site-packages/celery/events/snapshot.py", line 57, in capture
return self.state.freeze_while(self.shutter)
File "/opt/py26/lib/python2.6/site-packages/celery/events/state.py", line 198, in freeze_while
return fun(_args, *_kwargs)
File "/opt/py26/lib/python2.6/site-packages/celery/events/snapshot.py", line 53, in shutter
self.on_shutter(self.state)
File "/opt/py26/lib/python2.6/site-packages/djcelery/snapshot.py", line 82, in on_shutter
map(self.handle_task, state.tasks.items())
File "/opt/py26/lib/python2.6/site-packages/djcelery/snapshot.py", line 55, in handle_task
"worker": worker})
File "/opt/py26/lib/python2.6/site-packages/djcelery/snapshot.py", line 65, in update_task
return objects.create(**dict(kwargs, **defaults))
File "/opt/py26/lib/python2.6/site-packages/django/db/models/manager.py", line 138, in create
return self.get_query_set().create(**kwargs)
File "/opt/py26/lib/python2.6/site-packages/django/db/models/query.py", line 352, in create
obj.save(force_insert=True, using=self.db)
File "/opt/py26/lib/python2.6/site-packages/django/db/models/base.py", line 434, in save
self.save_base(using=using, force_insert=force_insert, force_update=force_update)
File "/opt/py26/lib/python2.6/site-packages/django/db/models/base.py", line 527, in save_base
result = manager._insert(values, return_id=update_pk, using=using)
File "/opt/py26/lib/python2.6/site-packages/django/db/models/manager.py", line 195, in _insert
return insert_query(self.model, values, **kwargs)
File "/opt/py26/lib/python2.6/site-packages/django/db/models/query.py", line 1479, in insert_query
return query.get_compiler(using=using).execute_sql(return_id)
File "/opt/py26/lib/python2.6/site-packages/django/db/models/sql/compiler.py", line 783, in execute_sql
cursor = super(SQLInsertCompiler, self).execute_sql(None)
File "/opt/py26/lib/python2.6/site-packages/django/db/models/sql/compiler.py", line 727, in execute_sql
cursor.execute(sql, params)
File "/opt/py26/lib/python2.6/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 44, in execute
return self.cursor.execute(query, args)
django.db.utils.DatabaseError: value too long for type character varying(200)

I was able to resolve the issue for my case by increasing the size of the TaskState.args and TaskState.kwargs to 1900. However the correct solution is probably to use a TextField.

[ask]

TaskState.args+kwargs should be TextField for long arguments. Closed by 555c163. Thanks to tdcarrol