seaweedfs/weed/topology/rack.go

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package topology
import (
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"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"strconv"
"time"
)
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type Rack struct {
NodeImpl
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}
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func NewRack(id string) *Rack {
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r := &Rack{}
r.id = NodeId(id)
r.nodeType = "Rack"
r.children = make(map[NodeId]Node)
r.NodeImpl.value = r
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return r
}
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func (r *Rack) FindDataNode(ip string, port int) *DataNode {
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for _, c := range r.Children() {
dn := c.(*DataNode)
if dn.MatchLocation(ip, port) {
return dn
}
}
return nil
}
func (r *Rack) GetOrCreateDataNode(ip string, port int, publicUrl string, maxVolumeCount int) *DataNode {
for _, c := range r.Children() {
dn := c.(*DataNode)
if dn.MatchLocation(ip, port) {
dn.LastSeen = time.Now().Unix()
return dn
}
}
dn := NewDataNode(ip + ":" + strconv.Itoa(port))
dn.Ip = ip
dn.Port = port
dn.PublicUrl = publicUrl
dn.maxVolumeCount = maxVolumeCount
dn.LastSeen = time.Now().Unix()
r.LinkChildNode(dn)
return dn
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}
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func (r *Rack) ToMap() interface{} {
m := make(map[string]interface{})
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m["Id"] = r.Id()
m["Max"] = r.GetMaxVolumeCount()
m["Free"] = r.FreeSpace()
var dns []interface{}
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for _, c := range r.Children() {
dn := c.(*DataNode)
dns = append(dns, dn.ToMap())
}
m["DataNodes"] = dns
return m
}
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func (r *Rack) ToRackInfo() *master_pb.RackInfo {
m := &master_pb.RackInfo{
Id: string(r.Id()),
VolumeCount: uint64(r.GetVolumeCount()),
MaxVolumeCount: uint64(r.GetMaxVolumeCount()),
FreeVolumeCount: uint64(r.FreeSpace()),
ActiveVolumeCount: uint64(r.GetActiveVolumeCount()),
}
for _, c := range r.Children() {
dn := c.(*DataNode)
m.DataNodeInfos = append(m.DataNodeInfos, dn.ToDataNodeInfo())
}
return m
}