seaweedfs/go/topology/cluster_commands.go

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package topology
import (
"code.google.com/p/weed-fs/go/glog"
"code.google.com/p/weed-fs/go/storage"
"github.com/goraft/raft"
)
type MaxVolumeIdCommand struct {
MaxVolumeId storage.VolumeId `json:"maxVolumeId"`
}
func NewMaxVolumeIdCommand(value storage.VolumeId) *MaxVolumeIdCommand {
return &MaxVolumeIdCommand{
MaxVolumeId: value,
}
}
func (c *MaxVolumeIdCommand) CommandName() string {
return "MaxVolumeId"
}
func (c *MaxVolumeIdCommand) Apply(server raft.Server) (interface{}, error) {
topo := server.Context().(*Topology)
before := topo.GetMaxVolumeId()
topo.UpAdjustMaxVolumeId(c.MaxVolumeId)
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glog.V(2).Infoln("max volume id", before, "==>", topo.GetMaxVolumeId())
return nil, nil
}