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Merge pull request #50504 from yastij/fcVolume-handleFailedMount

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Automatic merge from submit-queue (batch tested with PRs 51235, 50819, 51274, 50972, 50504)

handle failed mounts for fc volumes

**What this PR does / why we need it**: handles failed mounts for fc

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #50502

**Special notes for your reviewer**: 

**Release note**:

```release-note
None
```
This commit is contained in:
Kubernetes Submit Queue 2017-08-25 19:40:38 -07:00 committed by GitHub
commit 85f963310e
1 changed files with 24 additions and 2 deletions
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26
pkg/volume/fc/disk_manager.go
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@ -36,7 +36,6 @@ type diskManager interface {
// utility to mount a disk based filesystem
func diskSetUp(manager diskManager, b fcDiskMounter, volPath string, mounter mount.Interface, fsGroup *int64) error {
globalPDPath := manager.MakeGlobalPDName(*b.fcDisk)
// TODO: handle failed mounts here.
noMnt, err := mounter.IsLikelyNotMountPoint(volPath)
if err != nil && !os.IsNotExist(err) {
@ -57,7 +56,30 @@ func diskSetUp(manager diskManager, b fcDiskMounter, volPath string, mounter mou
}
err = mounter.Mount(globalPDPath, volPath, "", options)
if err != nil {
glog.Errorf("failed to bind mount:%s", globalPDPath)
glog.Errorf("Failed to bind mount: source:%s, target:%s, err:%v", globalPDPath, volPath, err)
noMnt, mntErr := b.mounter.IsLikelyNotMountPoint(volPath)
if mntErr != nil {
glog.Errorf("IsLikelyNotMountPoint check failed: %v", mntErr)
return err
}
if !noMnt {
if mntErr = b.mounter.Unmount(volPath); mntErr != nil {
glog.Errorf("Failed to unmount: %v", mntErr)
return err
}
noMnt, mntErr = b.mounter.IsLikelyNotMountPoint(volPath)
if mntErr != nil {
glog.Errorf("IsLikelyNotMountPoint check failed: %v", mntErr)
return err
}
if !noMnt {
// will most likely retry on next sync loop.
glog.Errorf("%s is still mounted, despite call to unmount(). Will try again next sync loop.", volPath)
return err
}
}
os.Remove(volPath)
return err
}