fix(celery): stop closing prerun_span too soon to account for Celery chains scenario [backport 2.17] #11805
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…chains scenario (#11498) We've made a few changes to handle celery context recently, including: #10676 In particular the goal of #10676 was to handle a scenario where a long running task may run into an exception, preventing it from closing. Unfortunately, this scenario did not account for cases where tasks are chained and may not close until later. See: #11479 and #11624 With this PR, the sample app in #11479 would attach the celery specific span back to the root span. I also need to add tests for the chains scenario. Related to AIDM-494 ## Checklist - [x] PR author has checked that all the criteria below are met - The PR description includes an overview of the change - The PR description articulates the motivation for the change - The change includes tests OR the PR description describes a testing strategy - The PR description notes risks associated with the change, if any - Newly-added code is easy to change - The change follows the [library release note guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html) - The change includes or references documentation updates if necessary - Backport labels are set (if [applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)) ## Reviewer Checklist - [x] Reviewer has checked that all the criteria below are met - Title is accurate - All changes are related to the pull request's stated goal - Avoids breaking [API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces) changes - Testing strategy adequately addresses listed risks - Newly-added code is easy to change - Release note makes sense to a user of the library - If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment - Backport labels are set in a manner that is consistent with the [release branch maintenance policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting) (cherry picked from commit e8aab65)
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Dec 19, 2024
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Backport e8aab65 from #11498 to 2.17.
We've made a few changes to handle celery context recently, including: #10676
In particular the goal of #10676 was to handle a scenario where a long running task may run into an exception, preventing it from closing.
Unfortunately, this scenario did not account for cases where tasks are chained and may not close until later.
See: #11479 and #11624
With this PR, the sample app in #11479 would attach the celery specific span back to the root span.
I also need to add tests for the chains scenario.
Related to AIDM-494
Checklist
Reviewer Checklist