mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
101 lines
3.1 KiB
Go
101 lines
3.1 KiB
Go
package shell
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import (
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"flag"
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"fmt"
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"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
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"github.com/chrislusf/seaweedfs/weed/storage/types"
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"io"
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"time"
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"github.com/chrislusf/seaweedfs/weed/storage/needle"
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)
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func init() {
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Commands = append(Commands, &commandVolumeTierMove{})
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}
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type commandVolumeTierMove struct {
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}
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func (c *commandVolumeTierMove) Name() string {
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return "volume.tier.move"
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}
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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 -fromDiskType=hdd -toDiskType=ssd [-collection=""] [-fullPercent=95] [-quietFor=1h]
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Even if the volume is replicated, only one replica will be changed and the rest replicas will be dropped.
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So "volume.fix.replication" and "volume.balance" should be followed.
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`
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}
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func (c *commandVolumeTierMove) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
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if err = commandEnv.confirmIsLocked(); err != nil {
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return
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}
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tierCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
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collection := tierCommand.String("collection", "", "the collection name")
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fullPercentage := tierCommand.Float64("fullPercent", 95, "the volume reaches the percentage of max volume size")
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quietPeriod := tierCommand.Duration("quietFor", 24*time.Hour, "select volumes without no writes for this period")
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source := tierCommand.String("fromDiskType", "", "the source disk type")
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target := tierCommand.String("toDiskType", "", "the target disk type")
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if err = tierCommand.Parse(args); err != nil {
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return nil
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}
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fromDiskType := types.ToDiskType(*source)
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toDiskType := types.ToDiskType(*target)
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if fromDiskType == toDiskType {
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return fmt.Errorf("source tier %s is the same as target tier %s", fromDiskType, toDiskType)
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}
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// collect topology information
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topologyInfo, volumeSizeLimitMb, err := collectTopologyInfo(commandEnv)
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if err != nil {
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return err
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}
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// apply to all volumes in the collection
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volumeIds, err := collectVolumeIdsForTierChange(commandEnv, topologyInfo, volumeSizeLimitMb, fromDiskType, *collection, *fullPercentage, *quietPeriod)
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if err != nil {
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return err
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}
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fmt.Printf("tier move volumes: %v\n", volumeIds)
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return nil
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}
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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) {
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quietSeconds := int64(quietPeriod / time.Second)
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nowUnixSeconds := time.Now().Unix()
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fmt.Printf("collect %s volumes quiet for: %d seconds\n", sourceTier, quietSeconds)
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vidMap := make(map[uint32]bool)
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eachDataNode(topologyInfo, func(dc string, rack RackId, dn *master_pb.DataNodeInfo) {
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for _, diskInfo := range dn.DiskInfos {
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for _, v := range diskInfo.VolumeInfos {
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if v.Collection == selectedCollection && v.ModifiedAtSecond+quietSeconds < nowUnixSeconds && types.ToDiskType(v.DiskType) == sourceTier {
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if float64(v.Size) > fullPercentage/100*float64(volumeSizeLimitMb)*1024*1024 {
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vidMap[v.Id] = true
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}
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}
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}
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}
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})
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for vid := range vidMap {
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vids = append(vids, needle.VolumeId(vid))
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}
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return
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}
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