Intermittent Jenkins build failure: vowelsound-artifacts files missing

[magent-cryptograss]

Summary

Jenkins production builds intermittently fail (~1 in 10 builds) with ENOENT errors when trying to copy vowelsound-artifacts PNG files:

Failed to copy /var/jenkins_home/workspace/arthel-production-build/src/images/vowelsound-artifacts/14.png 
to /var/jenkins_home/workspace/arthel-production-build/output/_prebuild_output/assets/images/vowelsound-artifacts/14.png: 
ENOENT: no such file or directory

Details

• Files exist in git and are tracked (commit 9402896)
• Files exist on production branch
• Build succeeds most of the time
• Failure is intermittent, suggesting a race condition or stale workspace state

Possible causes

1. Stale workspace: Jenkins incremental checkout not properly updating files
2. Race condition: Parallel build processes competing for file access
3. Filesystem caching: Some layer not flushing writes before copy operation

Workaround

When it happens, cleaning the workspace resolves it:

rm -rf /var/jenkins_home/workspace/arthel-production-build/src/images

Potential fixes

• Add cleanWs() step before checkout in Jenkinsfile
• Switch to fresh checkout strategy
• Add retry logic around file copy operations

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Issue created by magent at block ~24,595,621