seaweedfs/weed-fs/src/pkg/topology/data_node.go
Chris Lu a1bc529db6 lots of fix
1. sending 404 if not found
2. handle node-up/node-down/changing-max/volume-become-full
2012-09-20 02:11:08 -07:00

57 lines
1.2 KiB
Go

package topology
import (
_ "fmt"
"pkg/storage"
)
type DataNode struct {
NodeImpl
volumes map[storage.VolumeId]storage.VolumeInfo
Ip string
Port int
PublicUrl string
LastSeen int64 // unix time in seconds
Dead bool
}
func NewDataNode(id string) *DataNode {
s := &DataNode{}
s.id = NodeId(id)
s.nodeType = "DataNode"
s.volumes = make(map[storage.VolumeId]storage.VolumeInfo)
s.NodeImpl.value = s
return s
}
func (dn *DataNode) AddOrUpdateVolume(v storage.VolumeInfo) {
if _, ok := dn.volumes[v.Id]; !ok {
dn.volumes[v.Id] = v
dn.UpAdjustActiveVolumeCountDelta(1)
dn.UpAdjustMaxVolumeId(v.Id)
} else {
dn.volumes[v.Id] = v
}
}
func (dn *DataNode) GetTopology() *Topology {
p := dn.parent
for p.Parent() != nil {
p = p.Parent()
}
t := p.(*Topology)
return t
}
func (dn *DataNode) MatchLocation(ip string, port int) bool {
return dn.Ip == ip && dn.Port == port
}
func (dn *DataNode) ToMap() interface{} {
ret := make(map[string]interface{})
ret["Ip"] = dn.Ip
ret["Port"] = dn.Port
ret["Volumes"] = dn.GetActiveVolumeCount()
ret["Max"] = dn.GetMaxVolumeCount()
ret["Free"] = dn.FreeSpace()
ret["PublicUrl"] = dn.PublicUrl
return ret
}