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