package shell import ( "fmt" "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 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) { if err = commandEnv.confirmIsLocked(); err != nil { return } if len(args) != 3 { fmt.Fprintf(writer, "received args: %+v\n", args) return fmt.Errorf("need 3 args of ") } sourceVolumeServer, targetVolumeServer, volumeIdString := args[0], args[1], args[2] volumeId, err := needle.NewVolumeId(volumeIdString) if err != nil { return fmt.Errorf("wrong volume id format %s: %v", volumeId, err) } if sourceVolumeServer == targetVolumeServer { return fmt.Errorf("source and target volume servers are the same!") } _, err = copyVolume(commandEnv.option.GrpcDialOption, volumeId, sourceVolumeServer, targetVolumeServer) return }