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[DOP-14025] Remove asyncio.gather from SQLAlchemy requests #40

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merged 1 commit into from Apr 22, 2024

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@dolfinus dolfinus commented Apr 19, 2024

Change Summary

Using asyncio.gather with SQLAlchemy may result some unexpected errors: sqlalchemy/sqlalchemy#9312. We should avoid using it.

Also even asyncio.gather is still expensive because each for loop iteration sends a separated query to the database. Replaced it with connection_id IN (...) clause, reducing to just one database request.

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Checklist

  • Commit message and PR title is comprehensive
  • Keep the change as small as possible
  • Unit and integration tests for the changes exist
  • Tests pass on CI and coverage does not decrease
  • Documentation reflects the changes where applicable
  • docs/changelog/next_release/<pull request or issue id>.<change type>.rst file added describing change
    (see CONTRIBUTING.rst for details.)
  • My PR is ready to review.

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codecov bot commented Apr 19, 2024

Codecov Report

Attention: Patch coverage is 85.71429% with 5 lines in your changes are missing coverage. Please review.

Project coverage is 91.88%. Comparing base (3932c3c) to head (f0ba198).
Report is 1 commits behind head on develop.

❗ Current head f0ba198 differs from pull request most recent head 965177b. Consider uploading reports for the commit 965177b to get more accurate results

Files Patch % Lines
syncmaster/backend/api/v1/transfers/router.py 54.54% 2 Missing and 3 partials ⚠️
Additional details and impacted files
@@             Coverage Diff             @@
##           develop      #40      +/-   ##
===========================================
+ Coverage    91.73%   91.88%   +0.15%     
===========================================
  Files           84       84              
  Lines         2445     2441       -4     
  Branches       305      307       +2     
===========================================
  Hits          2243     2243              
+ Misses         145      140       -5     
- Partials        57       58       +1     

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@dolfinus dolfinus merged commit 2a5d95f into develop Apr 22, 2024
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@dolfinus dolfinus deleted the bugfix/eliminate-gather branch April 22, 2024 08:31
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2 participants