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Parallelize EC shards balancing within racks (#6354)

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Parallelize EC shards balancing within racks.
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Lisandro Pin 2024-12-15 22:36:23 +01:00 committed by GitHub
parent 926cfea3dc
commit 9b48ce0613
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1 changed files with 5 additions and 5 deletions
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10
weed/shell/command_ec_common.go
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@ -786,13 +786,13 @@ func (ecb *ecBalancer) pickRackToBalanceShardsInto(rackToEcNodes map[RackId]*EcR
return targets[rand.IntN(len(targets))], nil
}
// TODO: enable parallelization
func (ecb *ecBalancer) balanceEcShardsWithinRacks(collection string) error {
// collect vid => []ecNode, since previous steps can change the locations
vidLocations := ecb.collectVolumeIdToEcNodes(collection)
racks := ecb.racks()
// spread the ec shards evenly
ecb.wgInit()
for vid, locations := range vidLocations {
// see the volume's shards are in how many racks, and how many in each rack
@ -811,12 +811,12 @@ func (ecb *ecBalancer) balanceEcShardsWithinRacks(collection string) error {
}
sourceEcNodes := rackEcNodesWithVid[rackId]
averageShardsPerEcNode := ceilDivide(rackToShardCount[rackId], len(possibleDestinationEcNodes))
if err := ecb.doBalanceEcShardsWithinOneRack(averageShardsPerEcNode, collection, vid, sourceEcNodes, possibleDestinationEcNodes); err != nil {
return err
}
ecb.wgAdd(func() error {
return ecb.doBalanceEcShardsWithinOneRack(averageShardsPerEcNode, collection, vid, sourceEcNodes, possibleDestinationEcNodes)
})
}
}
return nil
return ecb.wgWait()
}
func (ecb *ecBalancer) doBalanceEcShardsWithinOneRack(averageShardsPerEcNode int, collection string, vid needle.VolumeId, existingLocations, possibleDestinationEcNodes []*EcNode) error {