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Merge pull request #27301 from bprashanth/ps_dbg

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Automatic merge from submit-queue

petset and volume debug messages

To help with https://github.com/kubernetes/kubernetes/issues/27299 https://github.com/kubernetes/kubernetes/issues/27058

simple enough that either reviewer can approve I guess.
This commit is contained in:
k8s-merge-robot 2016-06-14 12:34:43 -07:00 committed by GitHub
commit abfe894385
3 changed files with 33 additions and 6 deletions
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1
pkg/volume/gce_pd/attacher.go
View File

@ -166,6 +166,7 @@ func (attacher *gcePersistentDiskAttacher) MountDevice(spec *volume.Spec, device
os.Remove(deviceMountPath)
return err
}
glog.V(4).Infof("formatting spec %v devicePath %v deviceMountPath %v fs %v with options %+v", spec.Name(), devicePath, deviceMountPath, volumeSource.FSType, options)
}
return nil
}

5
pkg/volume/gce_pd/gce_pd.go
View File

@ -86,11 +86,12 @@ func getVolumeSource(spec *volume.Spec) (*api.GCEPersistentDiskVolumeSource, boo
if spec.Volume != nil && spec.Volume.GCEPersistentDisk != nil {
volumeSource = spec.Volume.GCEPersistentDisk
readOnly = volumeSource.ReadOnly
glog.V(4).Infof("volume source %v spec %v, readonly flag retrieved from source: %v", volumeSource.PDName, spec.Name(), readOnly)
} else {
volumeSource = spec.PersistentVolume.Spec.GCEPersistentDisk
readOnly = spec.ReadOnly
glog.V(4).Infof("volume source %v spec %v, readonly flag retrieved from spec: %v", volumeSource.PDName, spec.Name(), readOnly)
}
return volumeSource, readOnly
}
@ -219,7 +220,7 @@ func (b *gcePersistentDiskMounter) SetUp(fsGroup *int64) error {
func (b *gcePersistentDiskMounter) SetUpAt(dir string, fsGroup *int64) error {
// TODO: handle failed mounts here.
notMnt, err := b.mounter.IsLikelyNotMountPoint(dir)
glog.V(4).Infof("PersistentDisk set up: %s %v %v", dir, !notMnt, err)
glog.V(4).Infof("PersistentDisk set up: %s %v %v, pd name %v readOnly %v", dir, !notMnt, err, b.pdName, b.readOnly)
if err != nil && !os.IsNotExist(err) {
return err
}

33
test/e2e/petset.go
View File

@ -109,17 +109,23 @@ var _ = framework.KubeDescribe("PetSet [Slow] [Feature:PetSet]", func() {
By("Saturating pet set " + ps.Name)
pst.saturate(ps)
By("Verifying petset mounted data directory is usable")
ExpectNoError(pst.checkMount(ps, "/data"))
cmd := "echo $(hostname) > /data/hostname; sync;"
By("Running " + cmd + " in all pets")
pst.execInPets(ps, cmd)
ExpectNoError(pst.execInPets(ps, cmd))
By("Restarting pet set " + ps.Name)
pst.restart(ps)
pst.saturate(ps)
By("Verifying petset mounted data directory is usable")
ExpectNoError(pst.checkMount(ps, "/data"))
cmd = "if [ \"$(cat /data/hostname)\" = \"$(hostname)\" ]; then exit 0; else exit 1; fi"
By("Running " + cmd + " in all pets")
pst.execInPets(ps, cmd)
ExpectNoError(pst.execInPets(ps, cmd))
})
It("should handle healthy pet restarts during scale [Feature:PetSet]", func() {
@ -414,13 +420,32 @@ func (p *petSetTester) createPetSet(manifestPath, ns string) *apps.PetSet {
return ps
}
func (p *petSetTester) execInPets(ps *apps.PetSet, cmd string) {
func (p *petSetTester) checkMount(ps *apps.PetSet, mountPath string) error {
for _, cmd := range []string{
// Print inode, size etc
fmt.Sprintf("ls -idlh %v", mountPath),
// Print subdirs
fmt.Sprintf("find %v", mountPath),
// Try writing
fmt.Sprintf("touch %v", filepath.Join(mountPath, fmt.Sprintf("%v", time.Now().UnixNano()))),
} {
if err := p.execInPets(ps, cmd); err != nil {
return fmt.Errorf("failed to execute %v, error: %v", cmd, err)
}
}
return nil
}
func (p *petSetTester) execInPets(ps *apps.PetSet, cmd string) error {
podList := p.getPodList(ps)
for _, pet := range podList.Items {
stdout, err := framework.RunHostCmd(pet.Namespace, pet.Name, cmd)
ExpectNoError(err)
framework.Logf("stdout of %v on %v: %v", cmd, pet.Name, stdout)
if err != nil {
return err
}
}
return nil
}
func (p *petSetTester) saturate(ps *apps.PetSet) {