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53 lines
1.4 KiB
53 lines
1.4 KiB
package shell
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import (
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"context"
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"fmt"
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"io"
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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, &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 volume server host:port> <target volume server host:port> <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) Do(args []string, commandEnv *commandEnv, writer io.Writer) (err error) {
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if len(args) != 3 {
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fmt.Fprintf(writer, "received args: %+v\n", args)
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return fmt.Errorf("need 3 args of <source volume server host:port> <target volume server host:port> <volume id>")
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}
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sourceVolumeServer, targetVolumeServer, volumeIdString := args[0], args[1], args[2]
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volumeId, err := needle.NewVolumeId(volumeIdString)
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if err != nil {
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return fmt.Errorf("wrong volume id format %s: %v", volumeId, err)
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}
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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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ctx := context.Background()
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_, err = copyVolume(ctx, commandEnv.option.GrpcDialOption, volumeId, sourceVolumeServer, targetVolumeServer)
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return
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}
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