[Solved] Given this Celery task code snippet, what will be the output if the task raises a... Given this Celery task code snippet, what will be the output if the task raises a ValueError on the first run? | Django

Django - Celery and Background Tasks

Given this Celery task code snippet, what will be the output if the task raises a ValueError on the first run? ```python @app.task(bind=True, max_retries=3) def process_data(self): try: raise ValueError('Fail') except ValueError as exc: raise self.retry(exc=exc, countdown=10) ```

AThe task will retry infinitely without limit.

BThe task will retry up to 3 times with 10 seconds delay each.

CThe task will fail immediately without retrying.

DThe task will ignore the exception and succeed.

Step-by-Step Solution

Solution:

Step 1: Analyze retry parameters
The task has max_retries=3 and calls self.retry on exception with countdown=10.
Step 2: Understand retry behavior
On ValueError, the task retries up to 3 times, waiting 10 seconds between tries.
Final Answer:
The task will retry up to 3 times with 10 seconds delay each. -> Option B
Quick Check:
max_retries limits retries = 3 [OK]

Quick Trick: max_retries limits retry count, countdown sets delay [OK]

Common Mistakes:

MISTAKES

Assuming infinite retries without max_retries
Thinking task fails immediately without retry
Believing exceptions are ignored

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More Django Quizzes

Given this Celery task code snippet, what will be the output if the task raises a ValueError on the first run?

Step 1: Analyze retry parameters

Step 2: Understand retry behavior

Final Answer:

Quick Check:

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