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Correct the oversized state of volume after compaction

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This commit is contained in:
LIBA-S
2020-09-22 21:31:14 +08:00
parent d7bf2390e2
commit 0157798ebf
3 changed files with 223 additions and 15 deletions
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118
weed/topology/volume_layout.go
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@@ -13,14 +13,100 @@ import (
"github.com/chrislusf/seaweedfs/weed/storage/super_block"
)
type copyState int
const (
noCopies copyState = 0 + iota
insufficientCopies
enoughCopies
)
type volumeState string
const (
readOnlyState volumeState = "ReadOnly"
oversizedState = "Oversized"
)
type stateIndicator func(copyState) bool
func ExistCopies() stateIndicator {
return func(state copyState) bool { return state != noCopies }
}
func NoCopies() stateIndicator {
return func(state copyState) bool { return state == noCopies }
}
type volumesBinaryState struct {
rp *super_block.ReplicaPlacement
name volumeState // the name for volume state (eg. "Readonly", "Oversized")
indicator stateIndicator // indicate whether the volumes should be marked as `name`
copyMap map[needle.VolumeId]*VolumeLocationList
}
func NewVolumesBinaryState(name volumeState, rp *super_block.ReplicaPlacement, indicator stateIndicator) *volumesBinaryState {
return &volumesBinaryState{
rp: rp,
name: name,
indicator: indicator,
copyMap: make(map[needle.VolumeId]*VolumeLocationList),
}
}
func (v *volumesBinaryState) Dump() (res []uint32) {
for vid, list := range v.copyMap {
if v.indicator(v.copyState(list)) {
res = append(res, uint32(vid))
}
}
return
}
func (v *volumesBinaryState) IsTrue(vid needle.VolumeId) bool {
list, _ := v.copyMap[vid]
return v.indicator(v.copyState(list))
}
func (v *volumesBinaryState) Add(vid needle.VolumeId, dn *DataNode) {
list, _ := v.copyMap[vid]
if list != nil {
list.Set(dn)
return
}
list = NewVolumeLocationList()
list.Set(dn)
v.copyMap[vid] = list
}
func (v *volumesBinaryState) Remove(vid needle.VolumeId, dn *DataNode) {
list, _ := v.copyMap[vid]
if list != nil {
list.Remove(dn)
if list.Length() == 0 {
delete(v.copyMap, vid)
}
}
}
func (v *volumesBinaryState) copyState(list *VolumeLocationList) copyState {
if list == nil {
return noCopies
}
if list.Length() < v.rp.GetCopyCount() {
return insufficientCopies
}
return enoughCopies
}
// mapping from volume to its locations, inverted from server to volume
type VolumeLayout struct {
rp *super_block.ReplicaPlacement
ttl *needle.TTL
vid2location map[needle.VolumeId]*VolumeLocationList
writables []needle.VolumeId // transient array of writable volume id
readonlyVolumes map[needle.VolumeId]bool // transient set of readonly volumes
oversizedVolumes map[needle.VolumeId]bool // set of oversized volumes
writables []needle.VolumeId // transient array of writable volume id
readonlyVolumes *volumesBinaryState // readonly volumes
oversizedVolumes *volumesBinaryState // oversized volumes
volumeSizeLimit uint64
replicationAsMin bool
accessLock sync.RWMutex
@@ -38,8 +124,8 @@ func NewVolumeLayout(rp *super_block.ReplicaPlacement, ttl *needle.TTL, volumeSi
ttl: ttl,
vid2location: make(map[needle.VolumeId]*VolumeLocationList),
writables: *new([]needle.VolumeId),
readonlyVolumes: make(map[needle.VolumeId]bool),
oversizedVolumes: make(map[needle.VolumeId]bool),
readonlyVolumes: NewVolumesBinaryState(readOnlyState, rp, ExistCopies()),
oversizedVolumes: NewVolumesBinaryState(oversizedState, rp, ExistCopies()),
volumeSizeLimit: volumeSizeLimit,
replicationAsMin: replicationAsMin,
}
@@ -54,7 +140,7 @@ func (vl *VolumeLayout) RegisterVolume(v *storage.VolumeInfo, dn *DataNode) {
defer vl.accessLock.Unlock()
defer vl.ensureCorrectWritables(v)
defer vl.rememberOversizedVolume(v)
defer vl.rememberOversizedVolume(v, dn)
if _, ok := vl.vid2location[v.Id]; !ok {
vl.vid2location[v.Id] = NewVolumeLocationList()
@@ -66,24 +152,26 @@ func (vl *VolumeLayout) RegisterVolume(v *storage.VolumeInfo, dn *DataNode) {
if vInfo.ReadOnly {
glog.V(1).Infof("vid %d removed from writable", v.Id)
vl.removeFromWritable(v.Id)
vl.readonlyVolumes[v.Id] = true
vl.readonlyVolumes.Add(v.Id, dn)
return
} else {
delete(vl.readonlyVolumes, v.Id)
vl.readonlyVolumes.Remove(v.Id, dn)
}
} else {
glog.V(1).Infof("vid %d removed from writable", v.Id)
vl.removeFromWritable(v.Id)
delete(vl.readonlyVolumes, v.Id)
vl.readonlyVolumes.Remove(v.Id, dn)
return
}
}
}
func (vl *VolumeLayout) rememberOversizedVolume(v *storage.VolumeInfo) {
func (vl *VolumeLayout) rememberOversizedVolume(v *storage.VolumeInfo, dn *DataNode) {
if vl.isOversized(v) {
vl.oversizedVolumes[v.Id] = true
vl.oversizedVolumes.Add(v.Id, dn)
} else {
vl.oversizedVolumes.Remove(v.Id, dn)
}
}
@@ -99,6 +187,8 @@ func (vl *VolumeLayout) UnRegisterVolume(v *storage.VolumeInfo, dn *DataNode) {
if location.Remove(dn) {
vl.readonlyVolumes.Remove(v.Id, dn)
vl.oversizedVolumes.Remove(v.Id, dn)
vl.ensureCorrectWritables(v)
if location.Length() == 0 {
@@ -110,7 +200,7 @@ func (vl *VolumeLayout) UnRegisterVolume(v *storage.VolumeInfo, dn *DataNode) {
func (vl *VolumeLayout) ensureCorrectWritables(v *storage.VolumeInfo) {
if vl.enoughCopies(v.Id) && vl.isWritable(v) {
if _, ok := vl.oversizedVolumes[v.Id]; !ok {
if !vl.oversizedVolumes.IsTrue(v.Id) {
vl.setVolumeWritable(v.Id)
}
} else {
@@ -251,6 +341,8 @@ func (vl *VolumeLayout) SetVolumeUnavailable(dn *DataNode, vid needle.VolumeId)
if location, ok := vl.vid2location[vid]; ok {
if location.Remove(dn) {
vl.readonlyVolumes.Remove(vid, dn)
vl.oversizedVolumes.Remove(vid, dn)
if location.Length() < vl.rp.GetCopyCount() {
glog.V(0).Infoln("Volume", vid, "has", location.Length(), "replica, less than required", vl.rp.GetCopyCount())
return vl.removeFromWritable(vid)
@@ -315,7 +407,7 @@ func (vl *VolumeLayout) Stats() *VolumeLayoutStats {
size, fileCount := vll.Stats(vid, freshThreshold)
ret.FileCount += uint64(fileCount)
ret.UsedSize += size
if vl.readonlyVolumes[vid] {
if vl.readonlyVolumes.IsTrue(vid) {
ret.TotalSize += size
} else {
ret.TotalSize += vl.volumeSizeLimit