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fix: readQuorum calculation when defaultParityCount is 0 (#15363)

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when parity is '0' the readQuorum must be equal
to the number of data disks.
This commit is contained in:
Harshavardhana
2022-07-21 07:25:54 -07:00
committed by GitHub
parent 8249cd4406
commit 65166e4ce4
5 changed files with 28 additions and 20 deletions
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10
cmd/erasure-metadata.go
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@@ -400,17 +400,17 @@ func writeUniqueFileInfo(ctx context.Context, disks []StorageAPI, bucket, prefix
// readQuorum is the min required disks to read data.
// writeQuorum is the min required disks to write data.
func objectQuorumFromMeta(ctx context.Context, partsMetaData []FileInfo, errs []error, defaultParityCount int) (objectReadQuorum, objectWriteQuorum int, err error) {
if defaultParityCount == 0 {
return 1, 1, nil
}
// get the latest updated Metadata and a count of all the latest updated FileInfo(s)
latestFileInfo, err := getLatestFileInfo(ctx, partsMetaData, errs)
latestFileInfo, err := getLatestFileInfo(ctx, partsMetaData, defaultParityCount, errs)
if err != nil {
return 0, 0, err
}
if latestFileInfo.Deleted {
// special case when parity is '0'
if defaultParityCount == 0 {
return len(partsMetaData), len(partsMetaData), nil
}
// For delete markers do not use 'defaultParityCount' as it is not expected to be the case.
// Use maximum allowed read quorum instead, writeQuorum+1 is returned for compatibility sake
// but there are no callers that shall be using this.