seaweedfs/go/topology/data_node.go

95 lines
2.2 KiB
Go
Raw Normal View History

package topology
import (
"github.com/chrislusf/weed-fs/go/glog"
"github.com/chrislusf/weed-fs/go/storage"
2012-09-26 08:55:56 +00:00
"strconv"
)
2012-09-08 23:25:44 +00:00
type DataNode struct {
NodeImpl
volumes map[storage.VolumeId]storage.VolumeInfo
2012-09-12 08:07:23 +00:00
Ip string
Port int
PublicUrl string
LastSeen int64 // unix time in seconds
Dead bool
}
2012-09-08 23:25:44 +00:00
func NewDataNode(id string) *DataNode {
s := &DataNode{}
s.id = NodeId(id)
2012-09-08 23:25:44 +00:00
s.nodeType = "DataNode"
s.volumes = make(map[storage.VolumeId]storage.VolumeInfo)
s.NodeImpl.value = s
return s
2012-08-31 08:35:11 +00:00
}
func (dn *DataNode) AddOrUpdateVolume(v storage.VolumeInfo) {
if _, ok := dn.volumes[v.Id]; !ok {
dn.volumes[v.Id] = v
dn.UpAdjustVolumeCountDelta(1)
if !v.ReadOnly {
dn.UpAdjustActiveVolumeCountDelta(1)
}
dn.UpAdjustMaxVolumeId(v.Id)
2012-09-18 21:05:12 +00:00
} else {
dn.volumes[v.Id] = v
}
}
func (dn *DataNode) UpdateVolumes(actualVolumes []storage.VolumeInfo) (deletedVolumes []storage.VolumeInfo) {
actualVolumeMap := make(map[storage.VolumeId]storage.VolumeInfo)
for _, v := range actualVolumes {
actualVolumeMap[v.Id] = v
}
for vid, v := range dn.volumes {
if _, ok := actualVolumeMap[vid]; !ok {
glog.V(0).Infoln("Deleting volume id:", vid)
delete(dn.volumes, vid)
deletedVolumes = append(deletedVolumes, v)
dn.UpAdjustVolumeCountDelta(-1)
dn.UpAdjustActiveVolumeCountDelta(-1)
}
} //TODO: adjust max volume id, if need to reclaim volume ids
for _, v := range actualVolumes {
dn.AddOrUpdateVolume(v)
}
return
}
func (dn *DataNode) GetDataCenter() *DataCenter {
return dn.Parent().Parent().(*NodeImpl).value.(*DataCenter)
}
func (dn *DataNode) GetRack() *Rack {
return dn.Parent().(*NodeImpl).value.(*Rack)
}
func (dn *DataNode) GetTopology() *Topology {
p := dn.Parent()
for p.Parent() != nil {
p = p.Parent()
}
t := p.(*Topology)
return t
}
2012-09-14 08:17:13 +00:00
func (dn *DataNode) MatchLocation(ip string, port int) bool {
return dn.Ip == ip && dn.Port == port
}
2012-09-26 08:55:56 +00:00
func (dn *DataNode) Url() string {
return dn.Ip + ":" + strconv.Itoa(dn.Port)
2012-09-26 08:55:56 +00:00
}
func (dn *DataNode) ToMap() interface{} {
ret := make(map[string]interface{})
2012-09-26 08:55:56 +00:00
ret["Url"] = dn.Url()
ret["Volumes"] = dn.GetVolumeCount()
ret["Max"] = dn.GetMaxVolumeCount()
ret["Free"] = dn.FreeSpace()
ret["PublicUrl"] = dn.PublicUrl
return ret
2012-09-14 08:17:13 +00:00
}