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only copy required shards

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This commit is contained in:
Chris Lu
2019-12-23 18:06:13 -08:00
parent c7d5a0b00c
commit a18f62bbe7
2 changed files with 8 additions and 1 deletions
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2
weed/shell/command_ec_decode.go
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@@ -164,7 +164,7 @@ func collectEcShards(ctx context.Context, commandEnv *CommandEnv, nodeToEcIndexB
continue continue
} }
needToCopyEcIndexBits := ecIndexBits.Minus(exisitngEcIndexBits) needToCopyEcIndexBits := ecIndexBits.Minus(exisitngEcIndexBits).MinusParityShards()
if needToCopyEcIndexBits.ShardIdCount() == 0 { if needToCopyEcIndexBits.ShardIdCount() == 0 {
continue continue
} }

7
weed/storage/erasure_coding/ec_volume_info.go
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@@ -104,3 +104,10 @@ func (b ShardBits) Minus(other ShardBits) ShardBits {
func (b ShardBits) Plus(other ShardBits) ShardBits { func (b ShardBits) Plus(other ShardBits) ShardBits {
return b | other return b | other
} }
func (b ShardBits) MinusParityShards() ShardBits {
for i := DataShardsCount; i < TotalShardsCount; i++ {
b = b.RemoveShardId(ShardId(i))
}
return b
}