seaweedfs/weed/shell/command_volume_unmount.go

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package shell
import (
"context"
"flag"
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"fmt"
"github.com/seaweedfs/seaweedfs/weed/pb"
"io"
"github.com/seaweedfs/seaweedfs/weed/operation"
"github.com/seaweedfs/seaweedfs/weed/pb/volume_server_pb"
"github.com/seaweedfs/seaweedfs/weed/storage/needle"
"google.golang.org/grpc"
)
func init() {
Commands = append(Commands, &commandVolumeUnmount{})
}
type commandVolumeUnmount struct {
}
func (c *commandVolumeUnmount) Name() string {
return "volume.unmount"
}
func (c *commandVolumeUnmount) Help() string {
return `unmount a volume from one volume server
volume.unmount -node <volume server host:port> -volumeId <volume id>
This command unmounts a volume from one volume server.
`
}
func (c *commandVolumeUnmount) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
volUnmountCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
volumeIdInt := volUnmountCommand.Int("volumeId", 0, "the volume id")
nodeStr := volUnmountCommand.String("node", "", "the volume server <host>:<port>")
if err = volUnmountCommand.Parse(args); err != nil {
return nil
}
if *nodeStr == "" {
return fmt.Errorf("-node option is required")
}
if *volumeIdInt == 0 {
return fmt.Errorf("-volumeId option is required")
}
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if err = commandEnv.confirmIsLocked(args); err != nil {
return
}
sourceVolumeServer := pb.ServerAddress(*nodeStr)
volumeId := needle.VolumeId(*volumeIdInt)
return unmountVolume(commandEnv.option.GrpcDialOption, volumeId, sourceVolumeServer)
}
func unmountVolume(grpcDialOption grpc.DialOption, volumeId needle.VolumeId, sourceVolumeServer pb.ServerAddress) (err error) {
return operation.WithVolumeServerClient(false, sourceVolumeServer, grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
_, unmountErr := volumeServerClient.VolumeUnmount(context.Background(), &volume_server_pb.VolumeUnmountRequest{
VolumeId: uint32(volumeId),
})
return unmountErr
})
}