cpu saturated after containerd.service restart

[hanlins]

This issue was found during the investigation of kubernetes/kubernetes#95727.

Description:
After cadvisor manager starts, if containerd got restarted, it will get into a loop and flooding timeout.

Reproduce:
To reproduce the issue, you just need to create a cadvisor manager and start it, then restart containerd. For simplicity, created a repo, and you can reproduce the issue on a environment with containerd running.