Disable "fail fast" feature in "Test Go" workflow #2014
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For efficiency, the "Test Go" GitHub Actions workflow splits the test suite into multiple jobs which run in parallel. This is done via a "job matrix". By default GitHub Actions uses a "fail fast" behavior for job matrixes, where all in progress or pending jobs of the matrix are immediately canceled upon failure of any job. The benefit of this "fail fast" behavior is efficiency in the case where a failure is universal and those other jobs were certain to eventually fail. However, in other cases a failure is either specific to the configuration of a single job (e.g., a Windows-specific bug), or a spurious result of a transient network outage. In the latter case, canceling the other jobs is very harmful. Running the jobs for the other operating systems would highlight the nature of an OS-specific failure for the contributor. Canceling other jobs due to a transient failure means all those jobs must be reran instead of only the specific job that suffered the failure. The workflow is hereby configured to disable the "fail fast" behavior. All the matrix jobs will now run even if one of them has failed.
per1234
added
type: enhancement
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UPGRADING.mdhas been updated with a migration guide (for breaking changes)What kind of change does this PR introduce?
Infrastructure enhancement
What is the current behavior?
For efficiency, the "Test Go" GitHub Actions workflow splits the test suite into multiple jobs which run in parallel. This is done via a "job matrix".
By default GitHub Actions uses a "fail fast" behavior for job matrixes, where all in progress or pending jobs of the matrix are immediately canceled upon failure of any job.
The benefit of this "fail fast" behavior is efficiency in the case where a failure is universal and those other jobs were certain to eventually fail. However, in other cases a failure is either specific to the configuration of a single job (e.g., a Windows-specific bug), or a spurious result of a transient network outage. In the latter case, canceling the other jobs is very harmful. Running the jobs for the other operating systems would highlight the nature of an OS-specific failure for the contributor. Canceling other jobs due to a transient failure means all those jobs must be reran instead of only the specific job that suffered the failure.
What is the new behavior?
The workflow is hereby configured to disable the "fail fast" behavior. All the matrix jobs will now run even if one of them has failed.
Does this PR introduce a breaking change, and is titled accordingly?
No breaking change.
Other information
The workflow was previously configured for this behavior by #1914
Reference:
https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstrategyfail-fast