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fix code style

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This commit is contained in:
王怀宗 2019-03-29 10:18:59 +08:00
parent af330fe68e
commit 5b53e90ee4
4 changed files with 85 additions and 99 deletions
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3
cmd/cephfs/main.go
View File

@ -50,7 +50,6 @@ func main() {
}
//update plugin name
cephfs.PluginFolder = cephfs.PluginFolder + *driverName
cephfs.MountCacheDir = *mountCacheDir
cp, err := util.CreatePersistanceStorage(cephfs.PluginFolder, *metadataStorage, *driverName)
if err != nil {
@ -58,7 +57,7 @@ func main() {
}
driver := cephfs.NewDriver()
driver.Run(*driverName, *nodeID, *endpoint, *volumeMounter, cp)
driver.Run(*driverName, *nodeID, *endpoint, *volumeMounter, *mountCacheDir, cp)
os.Exit(0)
}

9
pkg/cephfs/driver.go
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@ -77,7 +77,7 @@ func NewNodeServer(d *csicommon.CSIDriver) *NodeServer {
// Run start a non-blocking grpc controller,node and identityserver for
// ceph CSI driver which can serve multiple parallel requests
func (fs *Driver) Run(driverName, nodeID, endpoint, volumeMounter string, cachePersister util.CachePersister) {
func (fs *Driver) Run(driverName, nodeID, endpoint, volumeMounter, mountCacheDir string, cachePersister util.CachePersister) {
klog.Infof("Driver: %v version: %v", driverName, version)
// Configuration
@ -105,10 +105,13 @@ func (fs *Driver) Run(driverName, nodeID, endpoint, volumeMounter string, cacheP
klog.Fatalf("failed to write ceph configuration file: %v", err)
}
if err := remountHisMountedPath(driverName, version, nodeID, cachePersister); err != nil {
klog.Warningf("failed to remounted history mounted path: %v", err)
initVolumeMountCache(driverName, mountCacheDir, cachePersister)
if mountCacheDir != "" {
if err := remountCachedVolumes(); err != nil {
klog.Warningf("failed to remount cached volumes: %v", err)
//ignore remount fail
}
}
// Initialize default library driver
fs.cd = csicommon.NewCSIDriver(driverName, version, nodeID)

162
pkg/cephfs/mountcache.go
View File

@ -12,82 +12,66 @@ import (
"k8s.io/klog"
)
type volumeMountEntry struct {
NodeID string `json:"nodeID"`
type volumeMountCacheEntry struct {
DriverName string `json:"driverName"`
DriverVersion string `json:"driverVersion"`
Namespace string `json:"namespace"`
VolumeID string `json:"volumeID"`
Secrets map[string]string `json:"secrets"`
StagingPath string `json:"stagingPath"`
TargetPaths map[string]bool `json:"targetPaths"`
CreateTime time.Time `json:"createTime"`
LastMountTime time.Time `json:"lastMountTime"`
LoadCount uint64 `json:"loadCount"`
}
type volumeMountCacheMap struct {
DriverName string
DriverVersion string
NodeID string
MountFailNum int64
MountSuccNum int64
Volumes map[string]volumeMountEntry
NodeCacheStore util.NodeCache
MetadataStore util.CachePersister
driverName string
volumes map[string]volumeMountCacheEntry
nodeCacheStore util.NodeCache
metadataStore util.CachePersister
}
var (
MountCacheDir = ""
volumeMountCachePrefix = "cephfs-mount-cache-"
volumeMountCache volumeMountCacheMap
volumeMountCacheMtx sync.Mutex
)
func remountHisMountedPath(name string, v string, nodeID string, cachePersister util.CachePersister) error {
volumeMountCache.Volumes = make(map[string]volumeMountEntry)
volumeMountCache.NodeID = nodeID
volumeMountCache.DriverName = name
volumeMountCache.DriverVersion = v
volumeMountCache.MountSuccNum = 0
volumeMountCache.MountFailNum = 0
func initVolumeMountCache(driverName string, mountCacheDir string, cachePersister util.CachePersister) {
volumeMountCache.volumes = make(map[string]volumeMountCacheEntry)
volumeMountCache.MetadataStore = cachePersister
volumeMountCache.driverName = driverName
volumeMountCache.metadataStore = cachePersister
volumeMountCache.nodeCacheStore.BasePath = mountCacheDir
volumeMountCache.nodeCacheStore.CacheDir = ""
klog.Infof("mount-cache: name: %s, version: %s, mountCacheDir: %s", driverName, version, mountCacheDir)
}
volumeMountCache.NodeCacheStore.BasePath = MountCacheDir
volumeMountCache.NodeCacheStore.CacheDir = ""
if len(MountCacheDir) == 0 {
//if mount cache dir unset, disable remount
klog.Infof("mount-cache: mountcachedir no define disalbe mount cache.")
return nil
}
klog.Infof("mount-cache: MountCacheDir: %s", MountCacheDir)
if err := os.MkdirAll(volumeMountCache.NodeCacheStore.BasePath, 0755); err != nil {
klog.Errorf("mount-cache: failed to create %s: %v", volumeMountCache.NodeCacheStore.BasePath, err)
func remountCachedVolumes() error {
if err := os.MkdirAll(volumeMountCache.nodeCacheStore.BasePath, 0755); err != nil {
klog.Errorf("mount-cache: failed to create %s: %v", volumeMountCache.nodeCacheStore.BasePath, err)
return err
}
me := &volumeMountEntry{}
var remountFailCount, remountSuccCount int64
me := &volumeMountCacheEntry{}
ce := &controllerCacheEntry{}
err := volumeMountCache.NodeCacheStore.ForAll(volumeMountCachePrefix, me, func(identifier string) error {
err := volumeMountCache.nodeCacheStore.ForAll(volumeMountCachePrefix, me, func(identifier string) error {
volID := me.VolumeID
klog.Infof("mount-cache: load %v", me)
if err := volumeMountCache.MetadataStore.Get(volID, ce); err != nil {
if err := volumeMountCache.metadataStore.Get(volID, ce); err != nil {
if err, ok := err.(*util.CacheEntryNotFound); ok {
klog.Infof("cephfs: metadata for volume %s not found, assuming the volume to be already deleted (%v)", volID, err)
if err := volumeMountCache.NodeCacheStore.Delete(genVolumeMountCacheFileName(volID)); err == nil {
klog.Infof("mount-cache: metadata for volume %s not found, assuming the volume to be already deleted (%v)", volID, err)
if err := volumeMountCache.nodeCacheStore.Delete(genVolumeMountCacheFileName(volID)); err == nil {
klog.Infof("mount-cache: metadata nofound, delete volume cache entry for volume %s", volID)
}
}
} else {
if err := mountOneCacheEntry(ce, me); err == nil {
volumeMountCache.MountSuccNum++
volumeMountCache.Volumes[me.VolumeID] = *me
remountSuccCount++
volumeMountCache.volumes[me.VolumeID] = *me
klog.Infof("mount-cache: remount volume %s succ", volID)
} else {
volumeMountCache.MountFailNum++
remountFailCount++
klog.Infof("mount-cache: remount volume cache %s fail", volID)
}
}
return nil
@ -96,33 +80,42 @@ func remountHisMountedPath(name string, v string, nodeID string, cachePersister
klog.Infof("mount-cache: metastore list cache fail %v", err)
return err
}
if volumeMountCache.MountFailNum > volumeMountCache.MountSuccNum {
return errors.New("mount-cache: too many volumes mount fail")
if remountFailCount > 0 {
klog.Infof("mount-cache: succ remount %d volumes, fail remount %d volumes", remountSuccCount, remountFailCount)
} else {
klog.Infof("mount-cache: volume cache num %d, all succ remount", remountSuccCount)
}
klog.Infof("mount-cache: succ remount %d volumes, fail remount %d volumes", volumeMountCache.MountSuccNum, volumeMountCache.MountFailNum)
return nil
}
func mountOneCacheEntry(ce *controllerCacheEntry, me *volumeMountEntry) error {
func mountOneCacheEntry(ce *controllerCacheEntry, me *volumeMountCacheEntry) error {
volumeMountCacheMtx.Lock()
defer volumeMountCacheMtx.Unlock()
var err error
var (
err error
cr *credentials
)
volID := ce.VolumeID
volOptions := ce.VolOptions
adminCr, err := getAdminCredentials(decodeCredentials(me.Secrets))
if volOptions.ProvisionVolume {
volOptions.RootPath = getVolumeRootPathCeph(volID)
cr, err = getAdminCredentials(decodeCredentials(me.Secrets))
if err != nil {
return err
}
entity, err := getCephUser(&volOptions, adminCr, volID)
var entity *cephEntity
entity, err = getCephUser(&volOptions, cr, volID)
if err != nil {
klog.Infof("mount-cache: failed to get ceph user: %s %v", volID, me.StagingPath)
return err
}
cr = entity.toCredentials()
} else {
cr, err = getUserCredentials(decodeCredentials(me.Secrets))
if err != nil {
return err
}
cr := entity.toCredentials()
if volOptions.ProvisionVolume {
volOptions.RootPath = getVolumeRootPathCeph(volID)
}
err = cleanupMountPoint(me.StagingPath)
@ -164,7 +157,7 @@ func mountOneCacheEntry(ce *controllerCacheEntry, me *volumeMountEntry) error {
func cleanupMountPoint(mountPoint string) error {
if _, err := os.Stat(mountPoint); err != nil {
if IsCorruptedMnt(err) {
if isCorruptedMnt(err) {
klog.Infof("mount-cache: corrupted mount point %s, need unmount", mountPoint)
err := execCommandErr("umount", mountPoint)
if err != nil {
@ -180,7 +173,7 @@ func cleanupMountPoint(mountPoint string) error {
return nil
}
func IsCorruptedMnt(err error) bool {
func isCorruptedMnt(err error) bool {
if err == nil {
return false
}
@ -203,17 +196,20 @@ func genVolumeMountCacheFileName(volID string) string {
cachePath := volumeMountCachePrefix + volID
return cachePath
}
func (mc *volumeMountCacheMap) isEnable() bool {
//if mount cache dir unset, disable state
return mc.nodeCacheStore.BasePath != ""
}
func (mc *volumeMountCacheMap) nodeStageVolume(volID string, stagingTargetPath string, secrets map[string]string) error {
if len(MountCacheDir) == 0 {
//if mount cache dir unset, disable remount
if !mc.isEnable() {
return nil
}
volumeMountCacheMtx.Lock()
defer volumeMountCacheMtx.Unlock()
lastTargetPaths := make(map[string]bool)
me, ok := volumeMountCache.Volumes[volID]
me, ok := volumeMountCache.volumes[volID]
if ok {
if me.StagingPath == stagingTargetPath {
klog.Warningf("mount-cache: node unexpected restage volume for volume %s", volID)
@ -223,82 +219,70 @@ func (mc *volumeMountCacheMap) nodeStageVolume(volID string, stagingTargetPath s
klog.Warningf("mount-cache: node stage volume ignore last cache entry for volume %s", volID)
}
me = volumeMountEntry{NodeID: mc.NodeID, DriverName: mc.DriverName, DriverVersion: mc.DriverVersion}
me = volumeMountCacheEntry{DriverName: mc.driverName, DriverVersion: version}
me.VolumeID = volID
me.Secrets = encodeCredentials(secrets)
me.StagingPath = stagingTargetPath
me.TargetPaths = lastTargetPaths
curTime := time.Now()
me.CreateTime = curTime
me.CreateTime = curTime
me.LoadCount = 0
volumeMountCache.Volumes[volID] = me
if err := mc.NodeCacheStore.Create(genVolumeMountCacheFileName(volID), me); err != nil {
klog.Errorf("mount-cache: node stage volume failed to store a cache entry for volume %s: %v", volID, err)
me.CreateTime = time.Now()
volumeMountCache.volumes[volID] = me
if err := mc.nodeCacheStore.Create(genVolumeMountCacheFileName(volID), me); err != nil {
return err
}
klog.Infof("mount-cache: node stage volume succ to store a cache entry for volume %s: %v", volID, me)
return nil
}
func (mc *volumeMountCacheMap) nodeUnStageVolume(volID string, stagingTargetPath string) error {
if len(MountCacheDir) == 0 {
//if mount cache dir unset, disable remount
func (mc *volumeMountCacheMap) nodeUnStageVolume(volID string) error {
if !mc.isEnable() {
return nil
}
volumeMountCacheMtx.Lock()
defer volumeMountCacheMtx.Unlock()
delete(volumeMountCache.Volumes, volID)
if err := mc.NodeCacheStore.Delete(genVolumeMountCacheFileName(volID)); err != nil {
klog.Infof("mount-cache: node unstage volume failed to delete cache entry for volume %s: %s %v", volID, stagingTargetPath, err)
delete(volumeMountCache.volumes, volID)
if err := mc.nodeCacheStore.Delete(genVolumeMountCacheFileName(volID)); err != nil {
return err
}
return nil
}
func (mc *volumeMountCacheMap) nodePublishVolume(volID string, targetPath string, readOnly bool) error {
if len(MountCacheDir) == 0 {
//if mount cache dir unset, disable remount
if !mc.isEnable() {
return nil
}
volumeMountCacheMtx.Lock()
defer volumeMountCacheMtx.Unlock()
_, ok := volumeMountCache.Volumes[volID]
_, ok := volumeMountCache.volumes[volID]
if !ok {
klog.Errorf("mount-cache: node publish volume failed to find cache entry for volume %s", volID)
return errors.New("mount-cache: node publish volume failed to find cache entry for volume")
}
volumeMountCache.Volumes[volID].TargetPaths[targetPath] = readOnly
volumeMountCache.volumes[volID].TargetPaths[targetPath] = readOnly
return mc.updateNodeCache(volID)
}
func (mc *volumeMountCacheMap) nodeUnPublishVolume(volID string, targetPath string) error {
if len(MountCacheDir) == 0 {
//if mount cache dir unset, disable remount
if !mc.isEnable() {
return nil
}
volumeMountCacheMtx.Lock()
defer volumeMountCacheMtx.Unlock()
_, ok := volumeMountCache.Volumes[volID]
_, ok := volumeMountCache.volumes[volID]
if !ok {
klog.Errorf("mount-cache: node unpublish volume failed to find cache entry for volume %s", volID)
return errors.New("mount-cache: node unpublish volume failed to find cache entry for volume")
}
delete(volumeMountCache.Volumes[volID].TargetPaths, targetPath)
delete(volumeMountCache.volumes[volID].TargetPaths, targetPath)
return mc.updateNodeCache(volID)
}
func (mc *volumeMountCacheMap) updateNodeCache(volID string) error {
me := volumeMountCache.Volumes[volID]
if err := volumeMountCache.NodeCacheStore.Delete(genVolumeMountCacheFileName(volID)); err == nil {
me := volumeMountCache.volumes[volID]
if err := volumeMountCache.nodeCacheStore.Delete(genVolumeMountCacheFileName(volID)); err == nil {
klog.Infof("mount-cache: metadata nofound, delete mount cache failed for volume %s", volID)
}
if err := mc.NodeCacheStore.Create(genVolumeMountCacheFileName(volID), me); err != nil {
klog.Errorf("mount-cache: mount cache failed to update for volume %s: %v", volID, err)
if err := mc.nodeCacheStore.Create(genVolumeMountCacheFileName(volID), me); err != nil {
return err
}
return nil

2
pkg/cephfs/nodeserver.go
View File

@ -245,7 +245,7 @@ func (ns *NodeServer) NodeUnstageVolume(ctx context.Context, req *csi.NodeUnstag
stagingTargetPath := req.GetStagingTargetPath()
volID := req.GetVolumeId()
if err = volumeMountCache.nodeUnStageVolume(volID, stagingTargetPath); err != nil {
if err = volumeMountCache.nodeUnStageVolume(volID); err != nil {
klog.Warningf("mount-cache: failed unstage volume %s %s: %v", volID, stagingTargetPath, err)
}