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
|
package shell
import (
"flag"
"fmt"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"github.com/chrislusf/seaweedfs/weed/storage/types"
"io"
"time"
"github.com/chrislusf/seaweedfs/weed/storage/needle"
)
func init() {
Commands = append(Commands, &commandVolumeTierMove{})
}
type commandVolumeTierMove struct {
}
func (c *commandVolumeTierMove) Name() string {
return "volume.tier.move"
}
func (c *commandVolumeTierMove) Help() string {
return `<WIP> change a volume from one disk type to another
volume.tier.move -fromDiskType=hdd -toDiskType=ssd [-collection=""] [-fullPercent=95] [-quietFor=1h]
Even if the volume is replicated, only one replica will be changed and the rest replicas will be dropped.
So "volume.fix.replication" and "volume.balance" should be followed.
`
}
func (c *commandVolumeTierMove) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
if err = commandEnv.confirmIsLocked(); err != nil {
return
}
tierCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
collection := tierCommand.String("collection", "", "the collection name")
fullPercentage := tierCommand.Float64("fullPercent", 95, "the volume reaches the percentage of max volume size")
quietPeriod := tierCommand.Duration("quietFor", 24*time.Hour, "select volumes without no writes for this period")
source := tierCommand.String("fromDiskType", "", "the source disk type")
target := tierCommand.String("toDiskType", "", "the target disk type")
if err = tierCommand.Parse(args); err != nil {
return nil
}
fromDiskType := types.ToDiskType(*source)
toDiskType := types.ToDiskType(*target)
if fromDiskType == toDiskType {
return fmt.Errorf("source tier %s is the same as target tier %s", fromDiskType, toDiskType)
}
// collect topology information
topologyInfo, volumeSizeLimitMb, err := collectTopologyInfo(commandEnv)
if err != nil {
return err
}
// apply to all volumes in the collection
volumeIds, err := collectVolumeIdsForTierChange(commandEnv, topologyInfo, volumeSizeLimitMb, fromDiskType, *collection, *fullPercentage, *quietPeriod)
if err != nil {
return err
}
fmt.Printf("tier move volumes: %v\n", volumeIds)
return nil
}
func collectVolumeIdsForTierChange(commandEnv *CommandEnv, topologyInfo *master_pb.TopologyInfo, volumeSizeLimitMb uint64, sourceTier types.DiskType, selectedCollection string, fullPercentage float64, quietPeriod time.Duration) (vids []needle.VolumeId, err error) {
quietSeconds := int64(quietPeriod / time.Second)
nowUnixSeconds := time.Now().Unix()
fmt.Printf("collect %s volumes quiet for: %d seconds\n", sourceTier, quietSeconds)
vidMap := make(map[uint32]bool)
eachDataNode(topologyInfo, func(dc string, rack RackId, dn *master_pb.DataNodeInfo) {
for _, diskInfo := range dn.DiskInfos {
for _, v := range diskInfo.VolumeInfos {
if v.Collection == selectedCollection && v.ModifiedAtSecond+quietSeconds < nowUnixSeconds && types.ToDiskType(v.DiskType) == sourceTier {
if float64(v.Size) > fullPercentage/100*float64(volumeSizeLimitMb)*1024*1024 {
vidMap[v.Id] = true
}
}
}
}
})
for vid := range vidMap {
vids = append(vids, needle.VolumeId(vid))
}
return
}
|
