Celery shared_task parameters wrong parsing












2















i'm using celery 4.2.0 with Django to schedule new tasks in rabbitmq and it randomly fails when it comes to parse arguments.
My code looks like that:



for param in serializer.validated_data['parameters']:
run_task.delay(param_name=param)


Where parameters is list of int and it is ensured with serializer validation.



@shared_task
def run_task(param_name: int) -> None:
obj= Obj.objects.filter(param=param_name)
...


Under UTs when i invoke this run_task with CELERY_TASK_ALWAYS_EAGER=True everything works. On real enviroment this tasks sometimes runs just OK and sometimes it fails with server error:



    File "/usr/lib/python3.6/site-packages/rest_framework/decorators.py", line 53, in handler
return func(*args, **kwargs)
File "/opt/app/compliance/jobs/views.py", line 30, in create_task
run_task.delay(param_name=param)
File "/usr/lib/python3.6/site-packages/celery/app/task.py", line 408, in delay
return self.apply_async(args, kwargs)
File "/usr/lib/python3.6/site-packages/celery/app/task.py", line 535, in apply_async
**options
File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 741, in send_task
with self.producer_or_acquire(producer) as P:
File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 876, in producer_or_acquire
producer, self.producer_pool.acquire, block=True,
File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 1246, in producer_pool
return self.amqp.producer_pool
File "/usr/lib/python3.6/site-packages/celery/app/amqp.py", line 612, in producer_pool
self.app.connection_for_write()]
File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 34, in __getitem__
h = eqhash(key)
File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 25, in eqhash
return o.__eqhash__()
File "/usr/lib/python3.6/site-packages/kombu/connection.py", line 629, in __eqhash__
repr(self.transport_options))
File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 16, in __init__
self.hashvalue = hash(seq)
TypeError: unhashable type: 'set'


I understand error itself but how come it appears here when I pass only one simple and parsable argument - not set. Does anyone know how to make it work persistently?

Thanks!










share|improve this question























  • Can you print the value of param in the failing cases?

    – Daniel Roseman
    Nov 21 '18 at 9:11











  • Just line before sending i have: LOGGER.info('Sending request for param %d', param) and it produces Sending request for param 17

    – user3043817
    Nov 21 '18 at 9:30


















2















i'm using celery 4.2.0 with Django to schedule new tasks in rabbitmq and it randomly fails when it comes to parse arguments.
My code looks like that:



for param in serializer.validated_data['parameters']:
run_task.delay(param_name=param)


Where parameters is list of int and it is ensured with serializer validation.



@shared_task
def run_task(param_name: int) -> None:
obj= Obj.objects.filter(param=param_name)
...


Under UTs when i invoke this run_task with CELERY_TASK_ALWAYS_EAGER=True everything works. On real enviroment this tasks sometimes runs just OK and sometimes it fails with server error:



    File "/usr/lib/python3.6/site-packages/rest_framework/decorators.py", line 53, in handler
return func(*args, **kwargs)
File "/opt/app/compliance/jobs/views.py", line 30, in create_task
run_task.delay(param_name=param)
File "/usr/lib/python3.6/site-packages/celery/app/task.py", line 408, in delay
return self.apply_async(args, kwargs)
File "/usr/lib/python3.6/site-packages/celery/app/task.py", line 535, in apply_async
**options
File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 741, in send_task
with self.producer_or_acquire(producer) as P:
File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 876, in producer_or_acquire
producer, self.producer_pool.acquire, block=True,
File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 1246, in producer_pool
return self.amqp.producer_pool
File "/usr/lib/python3.6/site-packages/celery/app/amqp.py", line 612, in producer_pool
self.app.connection_for_write()]
File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 34, in __getitem__
h = eqhash(key)
File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 25, in eqhash
return o.__eqhash__()
File "/usr/lib/python3.6/site-packages/kombu/connection.py", line 629, in __eqhash__
repr(self.transport_options))
File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 16, in __init__
self.hashvalue = hash(seq)
TypeError: unhashable type: 'set'


I understand error itself but how come it appears here when I pass only one simple and parsable argument - not set. Does anyone know how to make it work persistently?

Thanks!










share|improve this question























  • Can you print the value of param in the failing cases?

    – Daniel Roseman
    Nov 21 '18 at 9:11











  • Just line before sending i have: LOGGER.info('Sending request for param %d', param) and it produces Sending request for param 17

    – user3043817
    Nov 21 '18 at 9:30
















2












2








2








i'm using celery 4.2.0 with Django to schedule new tasks in rabbitmq and it randomly fails when it comes to parse arguments.
My code looks like that:



for param in serializer.validated_data['parameters']:
run_task.delay(param_name=param)


Where parameters is list of int and it is ensured with serializer validation.



@shared_task
def run_task(param_name: int) -> None:
obj= Obj.objects.filter(param=param_name)
...


Under UTs when i invoke this run_task with CELERY_TASK_ALWAYS_EAGER=True everything works. On real enviroment this tasks sometimes runs just OK and sometimes it fails with server error:



    File "/usr/lib/python3.6/site-packages/rest_framework/decorators.py", line 53, in handler
return func(*args, **kwargs)
File "/opt/app/compliance/jobs/views.py", line 30, in create_task
run_task.delay(param_name=param)
File "/usr/lib/python3.6/site-packages/celery/app/task.py", line 408, in delay
return self.apply_async(args, kwargs)
File "/usr/lib/python3.6/site-packages/celery/app/task.py", line 535, in apply_async
**options
File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 741, in send_task
with self.producer_or_acquire(producer) as P:
File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 876, in producer_or_acquire
producer, self.producer_pool.acquire, block=True,
File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 1246, in producer_pool
return self.amqp.producer_pool
File "/usr/lib/python3.6/site-packages/celery/app/amqp.py", line 612, in producer_pool
self.app.connection_for_write()]
File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 34, in __getitem__
h = eqhash(key)
File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 25, in eqhash
return o.__eqhash__()
File "/usr/lib/python3.6/site-packages/kombu/connection.py", line 629, in __eqhash__
repr(self.transport_options))
File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 16, in __init__
self.hashvalue = hash(seq)
TypeError: unhashable type: 'set'


I understand error itself but how come it appears here when I pass only one simple and parsable argument - not set. Does anyone know how to make it work persistently?

Thanks!










share|improve this question














i'm using celery 4.2.0 with Django to schedule new tasks in rabbitmq and it randomly fails when it comes to parse arguments.
My code looks like that:



for param in serializer.validated_data['parameters']:
run_task.delay(param_name=param)


Where parameters is list of int and it is ensured with serializer validation.



@shared_task
def run_task(param_name: int) -> None:
obj= Obj.objects.filter(param=param_name)
...


Under UTs when i invoke this run_task with CELERY_TASK_ALWAYS_EAGER=True everything works. On real enviroment this tasks sometimes runs just OK and sometimes it fails with server error:



    File "/usr/lib/python3.6/site-packages/rest_framework/decorators.py", line 53, in handler
return func(*args, **kwargs)
File "/opt/app/compliance/jobs/views.py", line 30, in create_task
run_task.delay(param_name=param)
File "/usr/lib/python3.6/site-packages/celery/app/task.py", line 408, in delay
return self.apply_async(args, kwargs)
File "/usr/lib/python3.6/site-packages/celery/app/task.py", line 535, in apply_async
**options
File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 741, in send_task
with self.producer_or_acquire(producer) as P:
File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 876, in producer_or_acquire
producer, self.producer_pool.acquire, block=True,
File "/usr/lib/python3.6/site-packages/celery/app/base.py", line 1246, in producer_pool
return self.amqp.producer_pool
File "/usr/lib/python3.6/site-packages/celery/app/amqp.py", line 612, in producer_pool
self.app.connection_for_write()]
File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 34, in __getitem__
h = eqhash(key)
File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 25, in eqhash
return o.__eqhash__()
File "/usr/lib/python3.6/site-packages/kombu/connection.py", line 629, in __eqhash__
repr(self.transport_options))
File "/usr/lib/python3.6/site-packages/kombu/utils/collections.py", line 16, in __init__
self.hashvalue = hash(seq)
TypeError: unhashable type: 'set'


I understand error itself but how come it appears here when I pass only one simple and parsable argument - not set. Does anyone know how to make it work persistently?

Thanks!







python django rabbitmq celery






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 21 '18 at 9:07









user3043817user3043817

162




162













  • Can you print the value of param in the failing cases?

    – Daniel Roseman
    Nov 21 '18 at 9:11











  • Just line before sending i have: LOGGER.info('Sending request for param %d', param) and it produces Sending request for param 17

    – user3043817
    Nov 21 '18 at 9:30





















  • Can you print the value of param in the failing cases?

    – Daniel Roseman
    Nov 21 '18 at 9:11











  • Just line before sending i have: LOGGER.info('Sending request for param %d', param) and it produces Sending request for param 17

    – user3043817
    Nov 21 '18 at 9:30



















Can you print the value of param in the failing cases?

– Daniel Roseman
Nov 21 '18 at 9:11





Can you print the value of param in the failing cases?

– Daniel Roseman
Nov 21 '18 at 9:11













Just line before sending i have: LOGGER.info('Sending request for param %d', param) and it produces Sending request for param 17

– user3043817
Nov 21 '18 at 9:30







Just line before sending i have: LOGGER.info('Sending request for param %d', param) and it produces Sending request for param 17

– user3043817
Nov 21 '18 at 9:30














0






active

oldest

votes











Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53408540%2fcelery-shared-task-parameters-wrong-parsing%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53408540%2fcelery-shared-task-parameters-wrong-parsing%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

MongoDB - Not Authorized To Execute Command

How to fix TextFormField cause rebuild widget in Flutter

Npm cannot find a required file even through it is in the searched directory