SPLAT-2923: vsphere: retry and throttle vCenter lookups during UPI VM creation - #10847
SPLAT-2923: vsphere: retry and throttle vCenter lookups during UPI VM creation#10847vr4manta wants to merge 1 commit into
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@vr4manta: This pull request references SPLAT-2923 which is a valid jira issue. Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "5.1.0" version, but no target version was set. DetailsIn response to this:
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Included review availability: Your plan provides up to 12 included reviews per hour; 10 remain after this review. 📝 WalkthroughWalkthroughPowerCLI now retries selected vCenter lookups with exponential backoff and terminating errors. VM creation jobs use a configurable concurrency throttle with a documented default of five. ChangesvCenter resilience and VM job throttling
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: ⚪ Minimal · up to The PR adds bounded retry and concurrency-throttling behavior for vCenter lookups and VM creation. No actionable merge-blocking risk remains based on the supplied evidence. Important Pre-merge checks failedPlease resolve all errors before merging. Addressing warnings is optional. ❌ Failed checks (1 error)
✅ Passed checks (14 passed)
Full details: Docstring CoverageExplanation No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (3 skipped: 3 unsupported.) Full details: Stable And Deterministic Test NamesExplanation The PR changes only PowerShell and configuration files. It adds no Ginkgo tests or test-title calls such as It(), Describe(), Context(), or When(). The dynamic strings are vCenter operation names and thread-job names, not test titles. No stable-name failure condition was introduced. Full details: Test Structure And QualityExplanation PASS: The pull request changes only three PowerShell files under Full details: Microshift Test CompatibilityExplanation No new Ginkgo e2e tests were added. The pull request changes only three PowerShell/configuration files under Full details: Single Node Openshift (Sno) Test CompatibilityExplanation PASS: The pull request adds no Ginkgo e2e tests. The exact commit changes only three PowerShell files under Full details: Topology-Aware Scheduling CompatibilityExplanation PASS — The pull request changes only Full details: Ote Binary Stdout ContractExplanation PASS: The pull request changes only three PowerShell files under Full details: Ipv6 And Disconnected Network Test CompatibilityExplanation PASS: The pull request changes only three PowerShell/example files: Full details: No-Weak-CryptoExplanation The pull request adds retry logic, throttling, and vCenter lookup changes only. The added lines contain no MD5, SHA1, DES, 3DES, RC4, Blowfish, or ECB usage, custom cryptography, or secret/token comparisons. Existing certificate and Base64 handling in Full details: Container-PrivilegesExplanation PASS. The PR changes only three PowerShell/configuration files: Full details: No-Sensitive-Data-In-LogsExplanation The PR adds warnings that write raw PowerCLI exception messages to output at lines 25 and 28 of Resolution Do not write raw exception messages or environment-supplied identifiers to normal warnings. Use fixed operation labels and log only the attempt count and a sanitized error category, or apply an explicit redaction function before logging. Preserve the original exception for failure handling without emitting its unredacted message.
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In `@upi/vsphere/powercli/upi-functions.ps1`:
- Line 28: Update Invoke-WithRetry so retry-status messages use a non-success
stream, such as Write-Warning, Write-Verbose, or Write-Information, instead of
Write-Output. Preserve the retry message content while ensuring callers such as
New-OpenShiftVM receive only the successful operation result.
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upi/vsphere/powercli/upi-functions.ps1upi/vsphere/powercli/upi.ps1upi/vsphere/variables.ps1.example
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We were seeing periodic UPI CI failures where VM creation aborted with "Value cannot be null" from PowerCLI Get-Datastore/Get-VM/Get-Folder/ Get-ResourcePool calls. These lookups target resources that should already exist, so a failure there is a transient vCenter API hiccup rather than a real "not found" condition, made more likely by multiple VM-creation thread jobs querying vCenter concurrently with no limit. Add a retry-with-backoff helper around these lookups and cap the number of concurrent VM-creation thread jobs (configurable via vmCreationThrottleLimit, default 5) to reduce load on vCenter. SPLAT-2923
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/test e2e-vsphere-ovn-upi |
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SPLAT-2923
Changes
Notes
We were seeing periodic UPI CI failures where VM creation aborted with "Value cannot be null" from PowerCLI Get-Datastore/Get-VM/Get-Folder/ Get-ResourcePool calls. These lookups target resources that should already exist, so a failure there is a transient vCenter API hiccup rather than a real "not found" condition, made more likely by multiple VM-creation thread jobs querying vCenter concurrently with no limit.
Add a retry-with-backoff helper around these lookups and cap the number of concurrent VM-creation thread jobs (configurable via vmCreationThrottleLimit, default 5) to reduce load on vCenter.
Summary by CodeRabbit
Reliability
Performance
Configuration