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a cleaner fix

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This commit is contained in:
Chris Lu 2020-12-18 10:39:30 -08:00
parent b7fef8f693
commit 2260864b45
1 changed files with 11 additions and 9 deletions
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20
weed/shell/command_volume_balance.go
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@ -244,9 +244,14 @@ func sortReadOnlyVolumes(volumes []*master_pb.VolumeInformationMessage) {
func balanceSelectedVolume(commandEnv *CommandEnv, volumeReplicas map[uint32][]*VolumeReplica, nodes []*Node, capacityFunc CapacityFunc, sortCandidatesFn func(volumes []*master_pb.VolumeInformationMessage), applyBalancing bool) (err error) {
selectedVolumeCount, volumeMaxCount := 0, 0
var nodesWithCapacity []*Node
for _, dn := range nodes {
selectedVolumeCount += len(dn.selectedVolumes)
volumeMaxCount += capacityFunc(dn.info)
capacity := capacityFunc(dn.info)
if capacity > 0 {
nodesWithCapacity = append(nodesWithCapacity, dn)
}
volumeMaxCount += capacity
}
idealVolumeRatio := divide(selectedVolumeCount, volumeMaxCount)
@ -257,22 +262,19 @@ func balanceSelectedVolume(commandEnv *CommandEnv, volumeReplicas map[uint32][]*
for hasMoved {
hasMoved = false
sort.Slice(nodes, func(i, j int) bool {
return nodes[i].localVolumeRatio(capacityFunc) < nodes[j].localVolumeRatio(capacityFunc)
sort.Slice(nodesWithCapacity, func(i, j int) bool {
return nodesWithCapacity[i].localVolumeRatio(capacityFunc) < nodesWithCapacity[j].localVolumeRatio(capacityFunc)
})
fullNode := nodes[len(nodes)-1]
fullNode := nodesWithCapacity[len(nodesWithCapacity)-1]
var candidateVolumes []*master_pb.VolumeInformationMessage
for _, v := range fullNode.selectedVolumes {
candidateVolumes = append(candidateVolumes, v)
}
sortCandidatesFn(candidateVolumes)
for i := 0; i < len(nodes)-1; i++ {
emptyNode := nodes[i]
if capacityFunc(emptyNode.info) == 0 {
continue
}
for i := 0; i < len(nodesWithCapacity)-1; i++ {
emptyNode := nodesWithCapacity[i]
if !(fullNode.localVolumeRatio(capacityFunc) > idealVolumeRatio && emptyNode.localVolumeNextRatio(capacityFunc) <= idealVolumeRatio) {
// no more volume servers with empty slots
break