Dong Lin created FLINK-27535:
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Summary: Optimize the unit test execution time
Key: FLINK-27535
URL: https://issues.apache.org/jira/browse/FLINK-27535
Project: Flink
Issue Type: Improvement
Components: Library / Machine Learning
Affects Versions: ml-2.1.0
Reporter: Dong Lin
Currently `mvn package` takes 10 minutes to complete in Github actions. A lot
of time is spent in running unit tests for algorithms. For example,
LogisticRegressionTest takes 82 seconds and KMeansTest takes 43 seconds in [1].
This time appears to be more than expected. And it will considerably reduce
developer velocity if a developer needs to wait for hours to get test results
once we have 100+ algorithms in Flink ML.
We should understand why it takes 82 seconds to run e.g. LogisticRegressionTest
and see if there is a way to optimize the test execution time.
[1] https://github.com/apache/flink-ml/runs/6319402103?check_suite_focus=true.
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