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- package shell
- import (
- "flag"
- "fmt"
- "github.com/seaweedfs/seaweedfs/weed/pb"
- "io"
- "github.com/seaweedfs/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 <source volume server host:port> -target <target volume server host:port> -volumeId <volume id>
- 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 <host>:<port>")
- targetNodeStr := volCopyCommand.String("target", "", "the target volume server <host>:<port>")
- if err = volCopyCommand.Parse(args); err != nil {
- return nil
- }
- if err = commandEnv.confirmIsLocked(args); 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, writer, volumeId, sourceVolumeServer, targetVolumeServer, "", 0)
- return
- }
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