seaweedfs/weed/shell/command_volume_tier_move.go

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package shell
import (
"context"
"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 {
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return "volume.tier.move"
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}
func (c *commandVolumeTierMove) Help() string {
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return `<WIP> change a volume from one disk type to another
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volume.tier.move -source=hdd -target=ssd [-collection=""] [-fullPercent=95] [-quietFor=1h]
volume.tier.move -target=hdd [-collection=""] -volumeId=<volume_id>
`
}
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)
volumeId := tierCommand.Int("volumeId", 0, "the volume id")
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
}
if *source == *target {
return fmt.Errorf("source tier %s is the same as target tier %s", *source, *target)
}
vid := needle.VolumeId(*volumeId)
// volumeId is provided
if vid != 0 {
// return doVolumeTierMove(commandEnv, writer, *collection, vid, *dest, *keepLocalDatFile)
}
// apply to all volumes in the collection
// reusing collectVolumeIdsForEcEncode for now
volumeIds, err := collectVolumeIdsForTierChange(commandEnv, *source, *collection, *fullPercentage, *quietPeriod)
if err != nil {
return err
}
fmt.Printf("tier move volumes: %v\n", volumeIds)
return nil
}
func collectVolumeIdsForTierChange(commandEnv *CommandEnv, sourceTier string, selectedCollection string, fullPercentage float64, quietPeriod time.Duration) (vids []needle.VolumeId, err error) {
var resp *master_pb.VolumeListResponse
err = commandEnv.MasterClient.WithClient(func(client master_pb.SeaweedClient) error {
resp, err = client.VolumeList(context.Background(), &master_pb.VolumeListRequest{})
return err
})
if err != nil {
return
}
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(resp.TopologyInfo, func(dc string, rack RackId, dn *master_pb.DataNodeInfo) {
for _, diskInfo := range dn.DiskInfos {
for _, v := range diskInfo.VolumeInfos {
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if v.Collection == selectedCollection && v.ModifiedAtSecond+quietSeconds < nowUnixSeconds && types.ToDiskType(v.DiskType) == types.ToDiskType(sourceTier) {
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if float64(v.Size) > fullPercentage/100*float64(resp.VolumeSizeLimitMb)*1024*1024 {
vidMap[v.Id] = true
}
}
}
}
})
for vid := range vidMap {
vids = append(vids, needle.VolumeId(vid))
}
return
}