1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
|
package topology
import (
"fmt"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"github.com/chrislusf/seaweedfs/weed/storage/needle"
"github.com/chrislusf/seaweedfs/weed/storage/types"
"github.com/chrislusf/seaweedfs/weed/util"
"strconv"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/storage"
)
type DataNode struct {
NodeImpl
Ip string
Port int
PublicUrl string
LastSeen int64 // unix time in seconds
}
func NewDataNode(id string) *DataNode {
dn := &DataNode{}
dn.id = NodeId(id)
dn.nodeType = "DataNode"
dn.diskUsages = newDiskUsages()
dn.children = make(map[NodeId]Node)
dn.NodeImpl.value = dn
return dn
}
func (dn *DataNode) String() string {
dn.RLock()
defer dn.RUnlock()
return fmt.Sprintf("Node:%s, Ip:%s, Port:%d, PublicUrl:%s", dn.NodeImpl.String(), dn.Ip, dn.Port, dn.PublicUrl)
}
func (dn *DataNode) AddOrUpdateVolume(v storage.VolumeInfo) (isNew, isChangedRO bool) {
dn.Lock()
defer dn.Unlock()
return dn.doAddOrUpdateVolume(v)
}
func (dn *DataNode) getOrCreateDisk(diskType string) *Disk {
c, found := dn.children[NodeId(diskType)]
if !found {
c = NewDisk(diskType)
dn.doLinkChildNode(c)
}
disk := c.(*Disk)
return disk
}
func (dn *DataNode) doAddOrUpdateVolume(v storage.VolumeInfo) (isNew, isChangedRO bool) {
disk := dn.getOrCreateDisk(v.DiskType)
return disk.AddOrUpdateVolume(v)
}
// UpdateVolumes detects new/deleted/changed volumes on a volume server
// used in master to notify master clients of these changes.
func (dn *DataNode) UpdateVolumes(actualVolumes []storage.VolumeInfo) (newVolumes, deletedVolumes, changeRO []storage.VolumeInfo) {
actualVolumeMap := make(map[needle.VolumeId]storage.VolumeInfo)
for _, v := range actualVolumes {
actualVolumeMap[v.Id] = v
}
dn.Lock()
defer dn.Unlock()
existingVolumes := dn.getVolumes()
for _, v := range existingVolumes {
vid := v.Id
if _, ok := actualVolumeMap[vid]; !ok {
glog.V(0).Infoln("Deleting volume id:", vid)
disk := dn.getOrCreateDisk(v.DiskType)
delete(disk.volumes, vid)
deletedVolumes = append(deletedVolumes, v)
deltaDiskUsages := newDiskUsages()
deltaDiskUsage := deltaDiskUsages.getOrCreateDisk(types.ToDiskType(v.DiskType))
deltaDiskUsage.volumeCount = -1
if v.IsRemote() {
deltaDiskUsage.remoteVolumeCount = -1
}
if !v.ReadOnly {
deltaDiskUsage.activeVolumeCount = -1
}
disk.UpAdjustDiskUsageDelta(deltaDiskUsages)
}
}
for _, v := range actualVolumes {
isNew, isChangedRO := dn.doAddOrUpdateVolume(v)
if isNew {
newVolumes = append(newVolumes, v)
}
if isChangedRO {
changeRO = append(changeRO, v)
}
}
return
}
func (dn *DataNode) DeltaUpdateVolumes(newVolumes, deletedVolumes []storage.VolumeInfo) {
dn.Lock()
defer dn.Unlock()
for _, v := range deletedVolumes {
disk := dn.getOrCreateDisk(v.DiskType)
delete(disk.volumes, v.Id)
deltaDiskUsages := newDiskUsages()
deltaDiskUsage := deltaDiskUsages.getOrCreateDisk(types.ToDiskType(v.DiskType))
deltaDiskUsage.volumeCount = -1
if v.IsRemote() {
deltaDiskUsage.remoteVolumeCount = -1
}
if !v.ReadOnly {
deltaDiskUsage.activeVolumeCount = -1
}
disk.UpAdjustDiskUsageDelta(deltaDiskUsages)
}
for _, v := range newVolumes {
dn.doAddOrUpdateVolume(v)
}
return
}
func (dn *DataNode) AdjustMaxVolumeCounts(maxVolumeCounts map[string]uint32) {
deltaDiskUsages := newDiskUsages()
for diskType, maxVolumeCount := range maxVolumeCounts {
if maxVolumeCount == 0 {
// the volume server may have set the max to zero
continue
}
dt := types.ToDiskType(diskType)
currentDiskUsage := dn.diskUsages.getOrCreateDisk(dt)
if currentDiskUsage.maxVolumeCount == int64(maxVolumeCount) {
continue
}
disk := dn.getOrCreateDisk(dt.String())
deltaDiskUsage := deltaDiskUsages.getOrCreateDisk(dt)
deltaDiskUsage.maxVolumeCount = int64(maxVolumeCount) - currentDiskUsage.maxVolumeCount
disk.UpAdjustDiskUsageDelta(deltaDiskUsages)
}
}
func (dn *DataNode) GetVolumes() (ret []storage.VolumeInfo) {
dn.RLock()
for _, c := range dn.children {
disk := c.(*Disk)
ret = append(ret, disk.GetVolumes()...)
}
dn.RUnlock()
return ret
}
func (dn *DataNode) GetVolumesById(id needle.VolumeId) (vInfo storage.VolumeInfo, err error) {
dn.RLock()
defer dn.RUnlock()
found := false
for _, c := range dn.children {
disk := c.(*Disk)
vInfo, found = disk.volumes[id]
if found {
break
}
}
if found {
return vInfo, nil
} else {
return storage.VolumeInfo{}, fmt.Errorf("volumeInfo not found")
}
}
func (dn *DataNode) GetDataCenter() *DataCenter {
rack := dn.Parent()
if rack == nil {
return nil
}
dcNode := rack.Parent()
if dcNode == nil {
return nil
}
dcValue := dcNode.GetValue()
return dcValue.(*DataCenter)
}
func (dn *DataNode) GetRack() *Rack {
return dn.Parent().(*NodeImpl).value.(*Rack)
}
func (dn *DataNode) GetTopology() *Topology {
p := dn.Parent()
for p.Parent() != nil {
p = p.Parent()
}
t := p.(*Topology)
return t
}
func (dn *DataNode) MatchLocation(ip string, port int) bool {
return dn.Ip == ip && dn.Port == port
}
func (dn *DataNode) Url() string {
return dn.Ip + ":" + strconv.Itoa(dn.Port)
}
func (dn *DataNode) ToMap() interface{} {
ret := make(map[string]interface{})
ret["Url"] = dn.Url()
ret["PublicUrl"] = dn.PublicUrl
// aggregated volume info
var volumeCount, ecShardCount, maxVolumeCount int64
var volumeIds string
for _, diskUsage := range dn.diskUsages.usages {
volumeCount += diskUsage.volumeCount
ecShardCount += diskUsage.ecShardCount
maxVolumeCount += diskUsage.maxVolumeCount
}
for _, disk := range dn.Children() {
d := disk.(*Disk)
volumeIds += " " + d.GetVolumeIds()
}
ret["Volumes"] = volumeCount
ret["EcShards"] = ecShardCount
ret["Max"] = maxVolumeCount
ret["VolumeIds"] = volumeIds
return ret
}
func (dn *DataNode) ToDataNodeInfo() *master_pb.DataNodeInfo {
m := &master_pb.DataNodeInfo{
Id: string(dn.Id()),
DiskInfos: make(map[string]*master_pb.DiskInfo),
}
for _, c := range dn.Children() {
disk := c.(*Disk)
m.DiskInfos[string(disk.Id())] = disk.ToDiskInfo()
}
return m
}
// GetVolumeIds returns the human readable volume ids limited to count of max 100.
func (dn *DataNode) GetVolumeIds() string {
dn.RLock()
defer dn.RUnlock()
existingVolumes := dn.getVolumes()
ids := make([]int, 0, len(existingVolumes))
for k := range existingVolumes {
ids = append(ids, int(k))
}
return util.HumanReadableIntsMax(100, ids...)
}
func (dn *DataNode) getVolumes() []storage.VolumeInfo {
var existingVolumes []storage.VolumeInfo
for _, c := range dn.children {
disk := c.(*Disk)
existingVolumes = append(existingVolumes, disk.GetVolumes()...)
}
return existingVolumes
}
|
