django-apscheduler | APScheduler for Django | Job Scheduling library
kandi X-RAY | django-apscheduler Summary
kandi X-RAY | django-apscheduler Summary
[code style:black] this is a django app that adds a lightweight wrapper around apscheduler. it enables storing persistent jobs in the database using django’s orm. django-apscheduler is a great choice for quickly and easily adding basic scheduling features to your django applications with minimal dependencies and very little additional configuration. the ideal use case probably involves running a handful of tasks on a fixed execution schedule. the tradeoff of this simplicity is that you need to be careful to ensure that you only have one scheduler actively running at a particular point in time. this
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Top functions reviewed by kandi - BETA
- An atomic update or create a new one
- Return Django datetime
- Format datetime datetime
- Gets the datetime from settings
django-apscheduler Key Features
django-apscheduler Examples and Code Snippets
Community Discussions
Trending Discussions on django-apscheduler
QUESTION
I'm using apscheduler-django and I created a task that loops every 10 seconds.
This function will make a request to an API and save the content to my database (PostgreSQL).
This is my task:
...ANSWER
Answered 2022-Mar-14 at 19:29apscheduler
and apscheduler-django
don't directly support that.
You can implement and use a custom executor that tracks the process running a job and kills the process if trying to submit a job that is currently running.
Here's a MaxInstancesCancelEarliestProcessPoolExecutor
that uses pebble.ProcessPool
.
QUESTION
I have a function that fetches data and needs to be run periodically.
All I care about is running it every 30 seconds.
I searched and found the following options -
- celery
- django-apscheduler
- Apscheduler
I have tried Apscheduler using BackgroundScheduler and it has this problem that it'll run a new scheduler for each process.
I am completely new to scheduling functions and have no idea which one I should use or if there is a better way.
ANSWER
Answered 2021-Aug-22 at 18:30I experienced a similar issue and solved it by creating a custom management command and scheduling it on the web server.
Within the root of the app, create management/commands directory:
QUESTION
Suppose I have a model Event
. I want to send a notification (email, push, whatever) to all invited users once the event has elapsed. Something along the lines of:
ANSWER
Answered 2020-Apr-01 at 11:03We're doing something like this in the company i work for, and the solution is quite simple.
Have a cron / celery beat that runs every hour to check if any notification needs to be sent. Then send those notifications and mark them as done. This way, even if your notification time is years ahead, it will still be sent. Using ETA is NOT the way to go for a very long wait time, your cache / amqp might loose the data.
You can reduce your interval depending on your needs, but do make sure they dont overlap.
If one hour is too huge of a time difference, then what you can do is, run a scheduler every hour. Logic would be something like
- run a task (lets call this scheduler task) hourly that gets all notifications that needs to be sent in the next hour (via celery beat) -
- Schedule those notifications via apply_async(eta) - this will be the actual sending
Using that methodology would get you both of best worlds (eta and beat)
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install django-apscheduler
Add ``django_apscheduler`` to your ``INSTALLED_APPS`` setting like this:
django-apscheduler comes with sensible configuration defaults out of the box. The defaults can be overridden by adding the following settings to your Django settings.py file:
Run python manage.py migrate to create the django_apscheduler models.
Add a [custom Django management command](https://docs.djangoproject.com/en/dev/howto/custom-management-commands/) to your project that schedules the APScheduler jobs and starts the scheduler:
This management command should be invoked via ./manage.py runapscheduler whenever the web server serving your Django application is started. The details of how and where this should be done is implementation specific, and depends on which web server you are using and how you are deploying your application to production. For most people this should involve configuring a [supervisor](http://supervisord.org) process of sorts.
Register any APScheduler jobs as you would normally. Note that if you haven’t set DjangoJobStore as the 'default' job store, then you will need to include jobstore='djangojobstore' in your scheduler.add_job() calls.
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