github/kubernetes
1
0
Fork 0
mirror of https://github.com/k3s-io/kubernetes.git synced 2025-07-26 05:03:09 +00:00
Code Issues Projects Releases Wiki Activity

Merge pull request #93931 from SataQiu/fix-kubelet-swap-20200812

Browse Source 
kubelet: assume that swap is disabled when /proc/swaps does not exist
This commit is contained in:
Kubernetes Prow Robot 2020-09-11 04:20:14 -07:00 committed by GitHub
commit 119c94214c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
pkg/kubelet/cm/container_manager_linux.go
View File

@ -215,10 +215,15 @@ func NewContainerManager(mountUtil mount.Interface, cadvisorInterface cadvisor.I
if failSwapOn {
// Check whether swap is enabled. The Kubelet does not support running with swap enabled.
swapData, err := ioutil.ReadFile("/proc/swaps")
swapFile := "/proc/swaps"
swapData, err := ioutil.ReadFile(swapFile)
if err != nil {
if os.IsNotExist(err) {
klog.Warningf("file %v does not exist, assuming that swap is disabled", swapFile)
} else {
return nil, err
}
} else {
swapData = bytes.TrimSpace(swapData) // extra trailing \n
swapLines := strings.Split(string(swapData), "\n")
@ -228,6 +233,7 @@ func NewContainerManager(mountUtil mount.Interface, cadvisorInterface cadvisor.I
return nil, fmt.Errorf("running with swap on is not supported, please disable swap! or set --fail-swap-on flag to false. /proc/swaps contained: %v", swapLines)
}
}
}
var internalCapacity = v1.ResourceList{}
// It is safe to invoke `MachineInfo` on cAdvisor before logically initializing cAdvisor here because