DiffResources {e2e.go}
Problem
https://k8s-gubernator.appspot.com/build/kubernetes-jenkins/logs/kubernetes-e2e-gci-gke-prod-smoke/551/ Failed: DiffResources {e2e.go} [code block] Previous issues for this test: #33373 #33416
Error Output
Error: 18 leaked resources
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1 Fix
Fix Leaked Resources in Kubernetes E2E Tests
The error '18 leaked resources' indicates that certain resources (like Pods, Services, or PersistentVolumes) were not properly cleaned up after the end of the end-to-end (E2E) tests. This can occur due to improper teardown procedures in the test cases or failures in the cleanup logic that prevent resources from being deleted, leading to resource leaks that can affect subsequent test runs.
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- 1
Review Test Cleanup Logic
Examine the E2E test code in e2e.go to ensure that all created resources are being properly cleaned up. Look for any missing calls to cleanup functions after test execution.
godefer cleanupResources() - 2
Implement Resource Tracking
Add logging to track resource creation and deletion within the tests. This will help identify which resources are not being cleaned up correctly.
golog.Printf("Creating resource: %s", resourceName) - 3
Increase Timeout for Cleanup Operations
If cleanup operations are timing out, consider increasing the timeout duration for cleanup functions to ensure they complete successfully.
goctx, cancel := context.WithTimeout(context.Background(), 5*time.Minute) - 4
Run Tests with Resource Leak Detection
Use tools like 'kubectl' to check for leaked resources after the tests run. This can be done by querying the resources that should have been deleted.
bashkubectl get pods --field-selector=status.phase!=Succeeded - 5
Update Test Documentation
Ensure that the test documentation includes guidelines for resource management and cleanup to prevent future leaks.
Validation
After implementing the fixes, rerun the E2E tests and verify that the 'leaked resources' error no longer appears in the logs. Additionally, check the Kubernetes cluster to confirm that no resources remain after the tests complete.
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Submitted by
Alex Chen
2450 rep