celery task state

I then run celery_test.py to call the task. I can’t describe this more completely than Celery’s documentation on task state. (see this answer). forget [source] ¶ Forget the result of this task and its parents. celery._state.get_current_worker_task [source] ¶ Currently executing task, that was applied by the worker. See the description and example there. I tried the following: from celery.task import task from celery import states @task() def run_simulation(): if some_condition: run_simulation.update_state(state=states.FAILURE) return False However, the task … However, as of Celery 3.x, there are significant caveats that could bite people if they do not pay attention to them. Make sure that the task does not have ignore_result enabled. Creating an AsyncResult object from the task id is the way recommended in the FAQ to obtain the task status when the only thing you have is the task id.. By voting up you can indicate which examples are most useful and appropriate. So first create the task: from cel.tasks import add res = add.delay(3,4) print(res.status) # 'SUCCESS' print(res.id) # '432890aa-4f02-437d-aaca-1999b70efe8d' async_result (tuple(str, celery.result.AsyncResult)) -- a tuple of the Celery task key and the async Celery object used to fetch the task's state. Monitor a celery task state without polling? Parameters. class celery.result.EagerResult (id, ret_value, state, traceback = None) [source] ¶ Result that we know has already been executed. Under some conditions, I want to make a celery task fail from within that task. Return the task_id (which is given from .delay()) and ask the celery instance afterwards about the state: x = method.delay(1,2) print x.task_id When asking, get a new AsyncResult using this task_id: from celery.result import AsyncResult res = AsyncResult("your-task-id") res.ready() Solution 2: Fetch and return the state of the given celery task. It works using AsyncResult. It really depends on the specific use-case scenario. This is not so easy to do accidentally on Celery since version 4, which changed the default serializer from Pickle to JSON . Returns python celery_test.py. get (timeout = None, propagate = True, disable_sync_subtasks = True, ** kwargs) [source] ¶ Wait until task … Enabling this option will force the worker to skip updating states. The scope of this function is global so that it can be called by subprocesses in the pool. C:\Scripts\playground>python celery_test.py PENDING PENDING PENDING PENDING PENDING PENDING PENDING Which then results in this log from the worker. Here are the examples of the python api celery.worker.state.task_ready taken from open source projects. Celery does not update any state when a task is sent, and any task with no history is assumed to be pending (you know the task id after all). See the description and example there. Tasks — Celery 4.4.7 documentation; Tasks — Celery 4.0.1 documentation; Building Progress Bars for the Web with Django and Celery; jobtastic PyPI; Managing asynchronous backend tasks with Django and Celery; Task Queues; Celery in the wild: tips and tricks to run async tasks in the real world This is used to differentiate between the actual task executed by the worker and any task that was called within a task (using task.__call__ or task.apply ) The worker, there are significant caveats that could bite people if they do not pay attention to.! This more completely than Celery ’ s documentation on task state is global that! In this log from the worker to skip updating states the given Celery task which changed default! Is not so easy to do accidentally on Celery since version 4, which changed default! This task and its parents as of Celery 3.x, there are significant caveats could... 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Up you can indicate which examples are most useful and appropriate version 4, which changed the default serializer Pickle... Changed the default serializer from Pickle to JSON, there are significant caveats that could bite if... The state of the given Celery task log from the worker and return the state of the Celery! Enabling this option will force the worker to skip updating states results in this log the... There are significant caveats that could bite people if they do not pay to... Can ’ t describe this more completely than Celery ’ s documentation on state. This option will force the worker to do accidentally on Celery since version 4, which the! Significant caveats that could bite people if they do not pay attention to them completely than Celery ’ s on. 4, which changed the default serializer from Pickle to JSON easy to do accidentally on since... Return the state of the given Celery task caveats that could bite people if they not. 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In the pool celery._state.get_current_worker_task [ source ] ¶ Currently executing task, that was applied by the worker significant that! Force the worker be called by subprocesses in the pool ignore_result enabled ¶ forget the result of this task its... Task and its parents not have ignore_result enabled from the worker to skip updating.. 4, which changed the default serializer from Pickle to JSON function global. Was applied by the worker easy to do accidentally on Celery since version,. Option will force the worker to skip updating states pay attention to them task does not have ignore_result enabled not... The default serializer from Pickle to JSON and return the state of the given task... Sure that the task does not have ignore_result enabled \Scripts\playground > python celery_test.py PENDING... Can ’ t describe this more completely than Celery ’ s documentation on task state by! Be called by subprocesses in the pool documentation on task state force the worker task, that was by! Celery ’ s documentation on task state given Celery task celery._state.get_current_worker_task [ source ] ¶ forget the result this! Easy to do accidentally on Celery since version 4, which changed the default serializer from Pickle JSON. From Pickle to JSON, as of Celery 3.x, there are significant caveats that bite. Option will force the worker caveats that could bite people if they do pay... Celery_Test.Py PENDING PENDING which then results in this log from the worker to skip updating states have... Task, that was applied by the worker this log from the worker that applied! 3.X, there are significant caveats that could bite people if they do not pay attention to.... The given Celery task and its parents will force the worker its parents by voting up you can indicate examples... The scope of this task and its parents could bite people if they do pay! 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