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Remove use of multiprocessing from the OAuth client #2626

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rdeaton-freenome
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Why are the changes needed?

Multiprocessing in Python is a bit fraught with issues, as it requires that every dependency in the transitive dependency tree of your project supports multiprocessing. We've noticed issues with the way that this code interacts with concurrent task registration that results in trying to open multiple instances of the server, which fails due to listening on the same port.

What changes were proposed in this pull request?

The multiprocessing usage here didn't actually bring any real benefit, as the intended use was to simply block the requestor's control flow anyways with the use of a queue. This retains the same behavior without the use of any multiprocessing.

How was this patch tested?

  • I updated the documentation accordingly.
  • All new and existing tests passed.
  • All commits are signed-off.

thomasjpfan
thomasjpfan previously approved these changes Jul 31, 2024
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I tested this PR on an OAuth client and it works. LGTM

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Signed-off-by: Robert Deaton <[email protected]>
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Sorry about that linting issue, fixed in the last commit. Thanks for the quick review!

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I'll just quickly note I expect we'll have a second PR in adjacent areas shortly. We're finding that there's still concurrency issues with registration with auth enabled, but we're certain multiprocessing was both exacerbating the issues and are aware of a long history of multiprocessing issues with grpcio.

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codecov bot commented Jul 31, 2024

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.35%. Comparing base (085fa9c) to head (eb3256d).
Report is 6 commits behind head on master.

Additional details and impacted files
@@             Coverage Diff             @@
##           master    #2626       +/-   ##
===========================================
+ Coverage   41.91%   92.35%   +50.43%     
===========================================
  Files         188       23      -165     
  Lines       19037     1099    -17938     
  Branches     3715        0     -3715     
===========================================
- Hits         7980     1015     -6965     
+ Misses      10948       84    -10864     
+ Partials      109        0      -109     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

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This is awesome, thank you! This PR also solves outstanding issues we've had on Windows for a long time (flyteorg/flyte#5079 and flyteorg/flyte#4982). I just tested on a windows machine and it worked beautifully.

@eapolinario eapolinario merged commit 286b17f into flyteorg:master Jul 31, 2024
97 checks passed
mao3267 pushed a commit to mao3267/flytekit that referenced this pull request Aug 1, 2024
* Remove use of multiprocessing from the OAuth client

Signed-off-by: Robert Deaton <[email protected]>

* Lint

Signed-off-by: Robert Deaton <[email protected]>

---------

Signed-off-by: Robert Deaton <[email protected]>
mao3267 pushed a commit to mao3267/flytekit that referenced this pull request Aug 2, 2024
* Remove use of multiprocessing from the OAuth client

Signed-off-by: Robert Deaton <[email protected]>

* Lint

Signed-off-by: Robert Deaton <[email protected]>

---------

Signed-off-by: Robert Deaton <[email protected]>
Signed-off-by: mao3267 <[email protected]>
Future-Outlier added a commit that referenced this pull request Aug 26, 2024
…class] (#2603)

* fix: set dataclass member as optional if default value is provided

Signed-off-by: mao3267 <[email protected]>

* lint

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* feat: handle nested dataclass conversion in JsonParamType

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* fix: handle errors caused by NoneType default value

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* test: add nested dataclass unit tests

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* Sagemaker dict determinism (#2597)

* truncate sagemaker agent outputs

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* fix tests and update agent output

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* lint

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* fix test

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* fix type

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* make the dictionary deterministic

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* nit

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---------

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* refactor(core): Enhance return type extraction logic (#2598)

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* Feat: Make exception raised by external command authenticator more actionable (#2594)

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* Fix: Properly re-raise non-grpc exceptions during refreshing of proxy-auth credentials in auth interceptor (#2591)

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---------

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---------

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* update readme

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---------

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* [Elastic/Artifacts] Pass through model card (#2575)

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* Remove pyarrow as a direct dependency (#2228)

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* Boolean flag to show local container logs to the terminal (#2521)

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* Using ParamSpec to show underlying typehinting (#2617)

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* Support ArrayNode mapping over Launch Plans (#2480)

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* only support launch plans in new array node class for now

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* lint

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* make array node class callable

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---------

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* Richer printing for some artifact objects (#2624)

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* ci: Add Python 3.9 to build matrix (#2622)

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* bump (#2627)

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* Added alt prefix head to FlyteFile.new_remote (#2601)

* Added alt prefix head to FlyteFile.new_remote

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* Added get_new_path method to FileAccessProvider, fixed new_remote method of FlyteFile

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* Updated tests and added new path creator to FlyteFile/Dir new_remote methods

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* Formatting

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---------

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* Feature gate for FlyteMissingReturnValueException (#2623)

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* Remove use of multiprocessing from the OAuth client (#2626)

* Remove use of multiprocessing from the OAuth client

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* Lint

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---------

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* Update codespell in precommit to version 2.3.0 (#2630)

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* Fix Snowflake Agent Bug (#2605)

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* a work version

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* Snowflake work version

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* fix secret encode

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* all works, I am so happy

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* Fix Tests

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* update comments:

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* update comments

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* use union secret

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* Update Changes

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* snowflake test passed

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---------

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* [Elastic] Fix context usage and apply fix to fork method (#2628)

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---------

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* Adds extra-index-url to default image builder (#2636)

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* reference_task should inherit from PythonTask (#2643)

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* Fix Get Agent Secret Using Key (#2644)

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* fix: prevent converting Flyte types as custom dataclasses

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* fix: add None to output type

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* test: add unit test for nested dataclass inputs

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* fix: update tests regarding input through file and pipe

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* fix: handle indexing errors in dict/list while checking nested dataclass, add comments

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---------

Signed-off-by: mao3267 <[email protected]>
Co-authored-by: Kevin Su <[email protected]>
Co-authored-by: Future-Outlier <[email protected]>
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