Hi Angela,
After you copy that file over, you'll need to edit a couple of lines in
that file:

THESE LINES:
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "settings")
app = Celery("arches")

SHOULD CHANGE TO THIS:
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "{my project
name}.settings")
app = Celery("{my project name}")

Hope that helps!
-Alexei

Director of Web Development - Farallon Geographics, Inc. - 971.227.3173


On Wed, Feb 10, 2021 at 12:22 PM Angela Labrador <[email protected]> wrote:

> Hi Alexei,
>
> I'm back! I have copied the new celery.py file over into my project
> directory as suggested above, however, I still get the same error.
> Error:
> Unable to load celery application.
> The module XXX was not found.
>
> where XXX = {settings.ELASTICSEARCH_PREFIX}
>
> The only celery management command
> <https://github.com/archesproject/arches/blob/stable/5.1.x/arches/management/commands/celery.py>
> that I have is in the arches/arches/management/commands/ directory, and I
> see that is using the elasticsearch_prefix variable on lines 41 and 43 and
> not the project name. When I edit those lines manually and change them to
> use my project's name, I can run the command fine.
>
> Am I supposed to have a separate celery management command within my
> project folder or is this a bug with the arches management command?
>
> Thanks,
> Angela
>
>
> On Friday, January 29, 2021 at 5:44:25 PM UTC-5 Alexei Peters wrote:
>
>> Hi Angela,
>> It looks like you identified the issue.  Older projects weren't created
>> with that celery file and that explains the problem you're seeing.
>> Copying that file over to your project should solve the problem.
>> This was most likely an oversight in our upgrade announcement (although I
>> can't be sure).  I'm actually not sure how/if this should be documented.
>> Suggestions are welcome there!  :)
>> Glad we solved this!
>> Cheers,
>> Alexei
>>
>> Director of Web Development - Farallon Geographics, Inc. - 971.227.3173
>> <(971)%20227-3173>
>>
>> On Fri, Jan 29, 2021 at 12:17 PM Angela Labrador <[email protected]>
>> wrote:
>>
>>> Hi Alexei,
>>>
>>> Yep, I'm running the command local to where the manage.py file is
>>> located (running the command just like any other python manage.py command
>>> with no dir in front of the command).
>>>
>>> But -- I think you just identified the problem! I do not have a
>>> celery.py file within my-project folder besides the celery.py files in
>>> media/packages/arches. This is a project that has been migrated from 4.0
>>> through the major versions over some time. So, maybe it never created the
>>> celery.py file during one of those migrations?
>>>
>>> I jumped on another virtual machine and installed a brand new arches 5.1
>>> project, and it did create a celery.py file with my project name as you
>>> pasted.
>>>
>>> Just for reference, on my migrated project, running
>>> find -iname celery.py
>>>
>>> results in:
>>>
>>> ./[my-project]/[my-project]/media/packages/arches/arches/management/commands/celery.py
>>> ./[my-project]/[my-project]/media/packages/arches/arches/celery.py
>>>
>>> ./[my-project]/static/packages/arches/tests/fixtures/testing_prj/testing_prj/celery.py
>>>
>>> ./[my-project]/static/packages/arches/arches/management/commands/celery.py
>>> ./[my-project]/static/packages/arches/arches/celery.py
>>> ./env/lib/python3.7/site-packages/celery/bin/celery.py
>>> ./arches/tests/fixtures/testing_prj/testing_prj/celery.py
>>> ./arches/arches/management/commands/celery.py
>>> ./arches/arches/celery.py
>>>
>>> So, should I just copy the contents of the celery.py file from the fresh
>>> project to my migrated project? And do you think this is an anomaly or a
>>> "feature" of migrating from much earlier versions? If the latter, should we
>>> add something to the docs to cover this?
>>>
>>> Thank you for sticking with this,
>>> Angela
>>>
>>>
>>>
>>> On Friday, January 29, 2021 at 2:39:06 PM UTC-5 Alexei Peters wrote:
>>>
>>>> Hi Angela,
>>>> Just to be clear the command should be run from the directory where the
>>>> "manage.py" file is located.
>>>> EG: you CAN'T do this --> python somedir/manage.py celery start
>>>>
>>>> Also, does your celery file look something like this?
>>>>
>>>> from __future__ import absolute_import, unicode_literals
>>>> import os
>>>> from celery import Celery
>>>>
>>>> os.environ.setdefault('DJANGO_SETTINGS_MODULE',
>>>> '{project_name}.settings')
>>>> app = Celery('{project_name}')
>>>> app.config_from_object('django.conf:settings', namespace='CELERY')
>>>> app.autodiscover_tasks()
>>>>
>>>>
>>>> where {project_name} is the name of the directory where your project
>>>> exists
>>>>
>>>> Cheers,
>>>> Alexei
>>>>
>>>> Director of Web Development - Farallon Geographics, Inc. - 971.227.3173
>>>> <(971)%20227-3173>
>>>> On Wed, Jan 27, 2021 at 7:31 AM Angela Labrador <[email protected]>
>>>> wrote:
>>>>
>>>>> Hi Alexei,
>>>>>
>>>>> Correct. I am running python manage.py celery start from within
>>>>> [my_project] folder, as per docs
>>>>> <https://arches.readthedocs.io/en/stable/task-management/?highlight=celery#running-celery>,
>>>>> which results in the
>>>>> Error:
>>>>> Unable to load celery application.
>>>>> The module [ my settings.ELASTICSEARCH_PREFIX ] was not found.
>>>>>
>>>>> My project folder structure is standard -- no renaming of anything.
>>>>>
>>>>> Thanks,
>>>>> Angela
>>>>> On Tuesday, January 26, 2021 at 3:44:15 PM UTC-5 Alexei Peters wrote:
>>>>>
>>>>>> Hi Angela,
>>>>>> I assume that you're running the "python manage.py celery start"
>>>>>> command from your project and not from the root of the Arches code base
>>>>>> correct?
>>>>>> The command also assumes that you haven't rename your folders in your
>>>>>> project directory.
>>>>>> -Alexei
>>>>>>
>>>>>> Director of Web Development - Farallon Geographics, Inc. -
>>>>>> 971.227.3173 <(971)%20227-3173>
>>>>>>
>>>>>>
>>>>>> On Mon, Jan 25, 2021 at 11:35 AM Angela Labrador <[email protected]>
>>>>>> wrote:
>>>>>>
>>>>>>> Hi Lindsay,
>>>>>>>
>>>>>>> Thanks for checking in -- no, I haven't really solved it. I've got a
>>>>>>> workaround, but would appreciate any ideas or explanations so I can
>>>>>>> understand how celery is supposed to be configured (or so that we can
>>>>>>> update the docs if they need to be edited).
>>>>>>>
>>>>>>> Angela
>>>>>>>
>>>>>>>
>>>>>>> On Tuesday, January 19, 2021 at 7:48:47 PM UTC-5 Lindsey Gant wrote:
>>>>>>>
>>>>>>>> Hi Angela,
>>>>>>>>
>>>>>>>> Were you able to find a solution to your celery error? If not, let
>>>>>>>> me see if someone in the group can follow up.
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>>
>>>>>>>> Lindsey
>>>>>>>> GCI Arches Project Team
>>>>>>>>
>>>>>>>> On Thursday, January 14, 2021 at 2:30:56 PM UTC-8 [email protected]
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> Hello all,
>>>>>>>>>
>>>>>>>>> I'm testing an upgrade to Arches 5.1 and have hit a stumbling
>>>>>>>>> block with trying to get celery running. I've followed the
>>>>>>>>> directions on the doc
>>>>>>>>> <https://arches.readthedocs.io/en/stable/task-management/?highlight=celery#running-celery>,
>>>>>>>>> and have RabbitMQ installed and my settings.py file updated. I did not
>>>>>>>>> create a tasks.py file within my project folder because the docs 
>>>>>>>>> imply this
>>>>>>>>> is only needed if I need to add additional tasks for my project (I 
>>>>>>>>> just
>>>>>>>>> need the default Arches tasks).
>>>>>>>>>
>>>>>>>>> When I run python manage.py celery start from within my
>>>>>>>>> virtualenv, I get
>>>>>>>>>
>>>>>>>>> Error:
>>>>>>>>> Unable to load celery application.
>>>>>>>>> The module XXX was not found.
>>>>>>>>>
>>>>>>>>> where XXX = my settings.ELASTICSEARCH_PREFIX
>>>>>>>>>
>>>>>>>>> However, when I edit the celery.py management command to use
>>>>>>>>> cmd = f"celery -A *arches* worker -B -l info"
>>>>>>>>> instead of settings.ELASTICSEARCH_PREFIX, celery starts up and
>>>>>>>>> connects to rabbitmq.
>>>>>>>>>
>>>>>>>>> I'm wondering why that management command is using the ES prefix
>>>>>>>>> and what I could be missing in my own project config that is causing 
>>>>>>>>> this.
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>> Angela
>>>>>>>>>
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