package shell import ( "flag" "fmt" "github.com/chrislusf/seaweedfs/weed/pb" "io" "github.com/chrislusf/seaweedfs/weed/storage/needle" ) func init() { Commands = append(Commands, &commandVolumeCopy{}) } type commandVolumeCopy struct { } func (c *commandVolumeCopy) Name() string { return "volume.copy" } func (c *commandVolumeCopy) Help() string { return `copy a volume from one volume server to another volume server volume.copy -source -target -volumeId This command copies a volume from one volume server to another volume server. Usually you will want to unmount the volume first before copying. ` } func (c *commandVolumeCopy) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) { volCopyCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError) volumeIdInt := volCopyCommand.Int("volumeId", 0, "the volume id") sourceNodeStr := volCopyCommand.String("source", "", "the source volume server :") targetNodeStr := volCopyCommand.String("target", "", "the target volume server :") if err = volCopyCommand.Parse(args); err != nil { return nil } if err = commandEnv.confirmIsLocked(); err != nil { return } sourceVolumeServer, targetVolumeServer := pb.ServerAddress(*sourceNodeStr), pb.ServerAddress(*targetNodeStr) volumeId := needle.VolumeId(*volumeIdInt) if sourceVolumeServer == targetVolumeServer { return fmt.Errorf("source and target volume servers are the same!") } _, err = copyVolume(commandEnv.option.GrpcDialOption, volumeId, sourceVolumeServer, targetVolumeServer, "") return }