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incrementally update master ec shards state

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This commit is contained in:
Chris Lu
2019-05-26 00:21:17 -07:00
parent db94a41f9e
commit af67d99ca4
4 changed files with 77 additions and 0 deletions
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37
weed/topology/data_node_ec.go
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@@ -55,3 +55,40 @@ func (dn *DataNode) UpdateEcShards(actualShards []*erasure_coding.EcVolumeInfo)
return
}
func (dn *DataNode) DeltaUpdateEcShards(newShards, deletedShards []*erasure_coding.EcVolumeInfo) {
for _, newShard := range newShards {
dn.AddOrUpdateEcShard(newShard)
}
for _, deletedShard := range deletedShards {
dn.DeleteEcShard(deletedShard)
}
}
func (dn *DataNode) AddOrUpdateEcShard(s *erasure_coding.EcVolumeInfo) {
dn.ecShardsLock.Lock()
defer dn.ecShardsLock.Unlock()
if existing, ok := dn.ecShards[s.VolumeId]; !ok {
dn.ecShards[s.VolumeId] = s
} else {
existing.ShardBits = existing.ShardBits.Plus(s.ShardBits)
}
}
func (dn *DataNode) DeleteEcShard(s *erasure_coding.EcVolumeInfo) {
dn.ecShardsLock.Lock()
defer dn.ecShardsLock.Unlock()
if existing, ok := dn.ecShards[s.VolumeId]; ok {
existing.ShardBits = existing.ShardBits.Minus(s.ShardBits)
if existing.ShardBits.ShardIdCount() == 0 {
delete(dn.ecShards, s.VolumeId)
}
}
}