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seaweedfs/weed/topology/rack.go

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package topology
import (
"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
"github.com/seaweedfs/seaweedfs/weed/storage/types"
"github.com/seaweedfs/seaweedfs/weed/util"
"golang.org/x/exp/slices"
"strings"
"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"
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r.diskUsages = newDiskUsages()
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, grpcPort int, publicUrl string, maxVolumeCounts map[string]uint32) *DataNode {
r.Lock()
defer r.Unlock()
for _, c := range r.children {
dn := c.(*DataNode)
if dn.MatchLocation(ip, port) {
dn.LastSeen = time.Now().Unix()
return dn
}
}
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dn := NewDataNode(util.JoinHostPort(ip, port))
dn.Ip = ip
dn.Port = port
dn.GrpcPort = grpcPort
dn.PublicUrl = publicUrl
dn.LastSeen = time.Now().Unix()
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r.doLinkChildNode(dn)
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for diskType, maxVolumeCount := range maxVolumeCounts {
disk := NewDisk(diskType)
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disk.diskUsages.getOrCreateDisk(types.ToDiskType(diskType)).maxVolumeCount = int64(maxVolumeCount)
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dn.LinkChildNode(disk)
}
return dn
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}
type RackInfo struct {
Id NodeId `json:"Id"`
DataNodes []DataNodeInfo `json:"DataNodes"`
}
func (r *Rack) ToInfo() (info RackInfo) {
info.Id = r.Id()
var dns []DataNodeInfo
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for _, c := range r.Children() {
dn := c.(*DataNode)
dns = append(dns, dn.ToInfo())
}
slices.SortFunc(dns, func(a, b DataNodeInfo) int {
return strings.Compare(a.Url, b.Url)
})
info.DataNodes = dns
return
}
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func (r *Rack) ToRackInfo() *master_pb.RackInfo {
m := &master_pb.RackInfo{
Id: string(r.Id()),
DiskInfos: r.diskUsages.ToDiskInfo(),
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}
for _, c := range r.Children() {
dn := c.(*DataNode)
m.DataNodeInfos = append(m.DataNodeInfos, dn.ToDataNodeInfo())
}
return m
}