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
|
package topology
import (
"context"
"sync/atomic"
"time"
"github.com/chrislusf/seaweedfs/weed/storage/needle"
"google.golang.org/grpc"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/operation"
"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
)
func batchVacuumVolumeCheck(grpcDialOption grpc.DialOption, vl *VolumeLayout, vid needle.VolumeId,
locationlist *VolumeLocationList, garbageThreshold float64) (*VolumeLocationList, bool) {
ch := make(chan int, locationlist.Length())
errCount := int32(0)
for index, dn := range locationlist.list {
go func(index int, url string, vid needle.VolumeId) {
err := operation.WithVolumeServerClient(url, grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
resp, err := volumeServerClient.VacuumVolumeCheck(context.Background(), &volume_server_pb.VacuumVolumeCheckRequest{
VolumeId: uint32(vid),
})
if err != nil {
atomic.AddInt32(&errCount, 1)
ch <- -1
return err
}
if resp.GarbageRatio >= garbageThreshold {
ch <- index
} else {
ch <- -1
}
return nil
})
if err != nil {
glog.V(0).Infof("Checking vacuuming %d on %s: %v", vid, url, err)
}
}(index, dn.Url(), vid)
}
vacuumLocationList := NewVolumeLocationList()
for range locationlist.list {
select {
case index := <-ch:
if index != -1 {
vacuumLocationList.list = append(vacuumLocationList.list, locationlist.list[index])
}
case <-time.After(30 * time.Minute):
return vacuumLocationList, false
}
}
return vacuumLocationList, errCount == 0 && len(vacuumLocationList.list) > 0
}
func batchVacuumVolumeCompact(grpcDialOption grpc.DialOption, vl *VolumeLayout, vid needle.VolumeId,
locationlist *VolumeLocationList, preallocate int64) bool {
vl.accessLock.Lock()
vl.removeFromWritable(vid)
vl.accessLock.Unlock()
ch := make(chan bool, locationlist.Length())
for index, dn := range locationlist.list {
go func(index int, url string, vid needle.VolumeId) {
glog.V(0).Infoln(index, "Start vacuuming", vid, "on", url)
err := operation.WithVolumeServerClient(url, grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
_, err := volumeServerClient.VacuumVolumeCompact(context.Background(), &volume_server_pb.VacuumVolumeCompactRequest{
VolumeId: uint32(vid),
})
return err
})
if err != nil {
glog.Errorf("Error when vacuuming %d on %s: %v", vid, url, err)
ch <- false
} else {
glog.V(0).Infof("Complete vacuuming %d on %s", vid, url)
ch <- true
}
}(index, dn.Url(), vid)
}
isVacuumSuccess := true
for range locationlist.list {
select {
case canCommit := <-ch:
isVacuumSuccess = isVacuumSuccess && canCommit
case <-time.After(30 * time.Minute):
return false
}
}
return isVacuumSuccess
}
func batchVacuumVolumeCommit(grpcDialOption grpc.DialOption, vl *VolumeLayout, vid needle.VolumeId, locationlist *VolumeLocationList) bool {
isCommitSuccess := true
for _, dn := range locationlist.list {
glog.V(0).Infoln("Start Committing vacuum", vid, "on", dn.Url())
err := operation.WithVolumeServerClient(dn.Url(), grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
_, err := volumeServerClient.VacuumVolumeCommit(context.Background(), &volume_server_pb.VacuumVolumeCommitRequest{
VolumeId: uint32(vid),
})
return err
})
if err != nil {
glog.Errorf("Error when committing vacuum %d on %s: %v", vid, dn.Url(), err)
isCommitSuccess = false
} else {
glog.V(0).Infof("Complete Committing vacuum %d on %s", vid, dn.Url())
}
if isCommitSuccess {
vl.SetVolumeAvailable(dn, vid)
}
}
return isCommitSuccess
}
func batchVacuumVolumeCleanup(grpcDialOption grpc.DialOption, vl *VolumeLayout, vid needle.VolumeId, locationlist *VolumeLocationList) {
for _, dn := range locationlist.list {
glog.V(0).Infoln("Start cleaning up", vid, "on", dn.Url())
err := operation.WithVolumeServerClient(dn.Url(), grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
_, err := volumeServerClient.VacuumVolumeCleanup(context.Background(), &volume_server_pb.VacuumVolumeCleanupRequest{
VolumeId: uint32(vid),
})
return err
})
if err != nil {
glog.Errorf("Error when cleaning up vacuum %d on %s: %v", vid, dn.Url(), err)
} else {
glog.V(0).Infof("Complete cleaning up vacuum %d on %s", vid, dn.Url())
}
}
}
func (t *Topology) Vacuum(grpcDialOption grpc.DialOption, garbageThreshold float64, preallocate int64) int {
// if there is vacuum going on, return immediately
swapped := atomic.CompareAndSwapInt64(&t.vacuumLockCounter, 0, 1)
if !swapped {
return 0
}
defer atomic.StoreInt64(&t.vacuumLockCounter, 0)
// now only one vacuum process going on
glog.V(1).Infof("Start vacuum on demand with threshold: %f", garbageThreshold)
for _, col := range t.collectionMap.Items() {
c := col.(*Collection)
for _, vl := range c.storageType2VolumeLayout.Items() {
if vl != nil {
volumeLayout := vl.(*VolumeLayout)
vacuumOneVolumeLayout(grpcDialOption, volumeLayout, c, garbageThreshold, preallocate)
}
}
}
return 0
}
func vacuumOneVolumeLayout(grpcDialOption grpc.DialOption, volumeLayout *VolumeLayout, c *Collection, garbageThreshold float64, preallocate int64) {
volumeLayout.accessLock.RLock()
tmpMap := make(map[needle.VolumeId]*VolumeLocationList)
for vid, locationList := range volumeLayout.vid2location {
tmpMap[vid] = locationList
}
volumeLayout.accessLock.RUnlock()
for vid, locationList := range tmpMap {
volumeLayout.accessLock.RLock()
isReadOnly, hasValue := volumeLayout.readonlyVolumes[vid]
volumeLayout.accessLock.RUnlock()
if hasValue && isReadOnly {
continue
}
glog.V(2).Infof("check vacuum on collection:%s volume:%d", c.Name, vid)
if vacuumLocationList, needVacuum := batchVacuumVolumeCheck(
grpcDialOption, volumeLayout, vid, locationList, garbageThreshold); needVacuum {
if batchVacuumVolumeCompact(grpcDialOption, volumeLayout, vid, vacuumLocationList, preallocate) {
batchVacuumVolumeCommit(grpcDialOption, volumeLayout, vid, vacuumLocationList)
} else {
batchVacuumVolumeCleanup(grpcDialOption, volumeLayout, vid, vacuumLocationList)
}
}
}
}
|
