kubernetes / kubernetes

go vet lostcancel errors in legacy-cloud-providers files

Summary of Open Issue: Lost Cancel Errors in Legacy Cloud Providers

Issue Overview:

The issue titled “go vet lostcancel errors in legacy-cloud-providers files” identifies problems detected by the go vet tool regarding potential context leaks in the vSphere node manager file. Specifically, it points out that the cancel function defined in the context.WithCancel() call is not utilized on all code paths, leading to possible memory leaks.

Details:

  • Reported by: sanposhiho on April 1, 2022
  • Affected File: staging/src/k8s.io/legacy-cloud-providers/vsphere/nodemanager.go
  • Primary Errors:
  • lostcancel: the cancel function is not used on all paths
  • The return statement in the function could be reached without leveraging the cancel variable.

Expected Outcome:

The resolution of these go vet issues is expected to prevent context leaks and ensure proper resource management.

Current State:

  • The issue is recognized as a technical bug but has been deemed of low priority since it has been present for over four years.
  • Discussions include attempts to address the errors before Kubernetes version 1.25, though no concrete resolution has been implemented as of the latest updates.

Additional Notes:

  • Contributors have expressed interest in fixing the problem, and it has been confirmed that it is still relevant as errors persist upon running go vet in the specified directory.
  • The issue is tagged with labels like good first issue, indicating its potential as an entry point for new contributors.

Relevant Links:

  • PR #122937: The related pull request noted that the problematic file has been removed from the repository.
  • Kubernetes repository for cloud provider vSphere: GitHub link

Labels:

  • kind/bug
  • sig/cloud-provider
  • triage/accepted

This summary outlines the key aspects of the issue for advanced developers, providing enough context to understand the problem without redundancy.