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Avoid pointer based copy, instead use Clone() (#8547)

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This PR adds functional test to test expanded
cluster syntax.
This commit is contained in:
Harshavardhana
2019-11-21 04:24:51 -08:00
committed by Nitish Tiwari
parent 9565641b9b
commit 4e9de58675
18 changed files with 198 additions and 165 deletions
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46
cmd/format-xl.go
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@@ -124,6 +124,18 @@ type formatXLV3 struct {
} `json:"xl"`
}
func (f *formatXLV3) Clone() *formatXLV3 {
b, err := json.Marshal(f)
if err != nil {
panic(err)
}
var dst formatXLV3
if err = json.Unmarshal(b, &dst); err != nil {
panic(err)
}
return &dst
}
// Returns formatXL.XL.Version
func newFormatXLV3(numSets int, setLen int) *formatXLV3 {
format := &formatXLV3{}
@@ -581,9 +593,9 @@ func getFormatXLInQuorum(formats []*formatXLV3) (*formatXLV3, error) {
for i, hash := range formatHashes {
if hash == maxHash {
format := *formats[i]
format := formats[i].Clone()
format.XL.This = ""
return &format, nil
return format, nil
}
}
@@ -591,7 +603,7 @@ func getFormatXLInQuorum(formats []*formatXLV3) (*formatXLV3, error) {
}
func formatXLV3Check(reference *formatXLV3, format *formatXLV3) error {
tmpFormat := *format
tmpFormat := format.Clone()
this := tmpFormat.XL.This
tmpFormat.XL.This = ""
if len(reference.XL.Sets) != len(format.XL.Sets) {
@@ -718,32 +730,32 @@ func fixFormatXLV3(storageDisks []StorageAPI, endpoints Endpoints, formats []*fo
}
// initFormatXL - save XL format configuration on all disks.
func initFormatXL(ctx context.Context, storageDisks []StorageAPI, setCount, disksPerSet int, deploymentID string) (format *formatXLV3, err error) {
format = newFormatXLV3(setCount, disksPerSet)
func initFormatXL(ctx context.Context, storageDisks []StorageAPI, setCount, drivesPerSet int, deploymentID string) (*formatXLV3, error) {
format := newFormatXLV3(setCount, drivesPerSet)
formats := make([]*formatXLV3, len(storageDisks))
for i := 0; i < setCount; i++ {
for j := 0; j < disksPerSet; j++ {
newFormat := *format
for j := 0; j < drivesPerSet; j++ {
newFormat := format.Clone()
newFormat.XL.This = format.XL.Sets[i][j]
if deploymentID != "" {
newFormat.ID = deploymentID
}
formats[i*disksPerSet+j] = &newFormat
formats[i*drivesPerSet+j] = newFormat
}
}
// Initialize meta volume, if volume already exists ignores it.
if err = initFormatXLMetaVolume(storageDisks, formats); err != nil {
if err := initFormatXLMetaVolume(storageDisks, formats); err != nil {
return format, fmt.Errorf("Unable to initialize '.minio.sys' meta volume, %s", err)
}
// Save formats `format.json` across all disks.
if err = saveFormatXLAll(ctx, storageDisks, formats); err != nil {
if err := saveFormatXLAll(ctx, storageDisks, formats); err != nil {
return nil, err
}
return format, nil
return getFormatXLInQuorum(formats)
}
// Make XL backend meta volumes.
@@ -857,14 +869,14 @@ func markUUIDsOffline(refFormat *formatXLV3, formats []*formatXLV3) {
}
// Initialize a new set of set formats which will be written to all disks.
func newHealFormatSets(refFormat *formatXLV3, setCount, disksPerSet int, formats []*formatXLV3, errs []error) [][]*formatXLV3 {
func newHealFormatSets(refFormat *formatXLV3, setCount, drivesPerSet int, formats []*formatXLV3, errs []error) [][]*formatXLV3 {
newFormats := make([][]*formatXLV3, setCount)
for i := range refFormat.XL.Sets {
newFormats[i] = make([]*formatXLV3, disksPerSet)
newFormats[i] = make([]*formatXLV3, drivesPerSet)
}
for i := range refFormat.XL.Sets {
for j := range refFormat.XL.Sets[i] {
if errs[i*disksPerSet+j] == errUnformattedDisk || errs[i*disksPerSet+j] == nil {
if errs[i*drivesPerSet+j] == errUnformattedDisk || errs[i*drivesPerSet+j] == nil {
newFormats[i][j] = &formatXLV3{}
newFormats[i][j].Version = refFormat.Version
newFormats[i][j].ID = refFormat.ID
@@ -872,13 +884,13 @@ func newHealFormatSets(refFormat *formatXLV3, setCount, disksPerSet int, formats
newFormats[i][j].XL.Version = refFormat.XL.Version
newFormats[i][j].XL.DistributionAlgo = refFormat.XL.DistributionAlgo
}
if errs[i*disksPerSet+j] == errUnformattedDisk {
if errs[i*drivesPerSet+j] == errUnformattedDisk {
newFormats[i][j].XL.This = ""
newFormats[i][j].XL.Sets = nil
continue
}
if errs[i*disksPerSet+j] == nil {
newFormats[i][j].XL.This = formats[i*disksPerSet+j].XL.This
if errs[i*drivesPerSet+j] == nil {
newFormats[i][j].XL.This = formats[i*drivesPerSet+j].XL.This
newFormats[i][j].XL.Sets = nil
}
}