// Heal heal an existing donut
func (donut API) Heal() error {
if err := donut.listDonutBuckets(); err != nil {
return iodine.New(err, nil)
}
disks := make(map[int]disk.Disk)
for _, node := range donut.nodes {
nDisks, err := node.ListDisks()
if err != nil {
return iodine.New(err, nil)
}
for k, v := range nDisks {
disks[k] = v
}
}
missingDisks := make(map[int]disk.Disk)
for order, disk := range disks {
if !disk.IsUsable() {
missingDisks[order] = disk
}
}
bucketMetadata, err := donut.getDonutBucketMetadata()
if err != nil {
return iodine.New(err, nil)
}
for _, disk := range missingDisks {
disk.MakeDir(donut.config.DonutName)
bucketMetadataWriter, err := disk.CreateFile(filepath.Join(donut.config.DonutName, bucketMetadataConfig))
if err != nil {
return iodine.New(err, nil)
}
defer bucketMetadataWriter.Close()
jenc := json.NewEncoder(bucketMetadataWriter)
if err := jenc.Encode(bucketMetadata); err != nil {
return iodine.New(err, nil)
}
}
for order, disk := range missingDisks {
for bucket := range bucketMetadata.Buckets {
bucketSlice := fmt.Sprintf("%s$0$%d", bucket, order) // TODO handle node slices
err := disk.MakeDir(filepath.Join(donut.config.DonutName, bucketSlice))
if err != nil {
return iodine.New(err, nil)
}
}
}
return nil
// TODO heal data
}
// makeDonutBucket -
func (donut API) makeDonutBucket(bucketName, acl string) *probe.Error {
if err := donut.listDonutBuckets(); err != nil {
return err.Trace()
}
if _, ok := donut.buckets[bucketName]; ok {
return probe.NewError(BucketExists{Bucket: bucketName})
}
bkt, bucketMetadata, err := newBucket(bucketName, acl, donut.config.DonutName, donut.nodes)
if err != nil {
return err.Trace()
}
nodeNumber := 0
donut.buckets[bucketName] = bkt
for _, node := range donut.nodes {
disks := make(map[int]disk.Disk)
disks, err = node.ListDisks()
if err != nil {
return err.Trace()
}
for order, disk := range disks {
bucketSlice := fmt.Sprintf("%s$%d$%d", bucketName, nodeNumber, order)
err := disk.MakeDir(filepath.Join(donut.config.DonutName, bucketSlice))
if err != nil {
return err.Trace()
}
}
nodeNumber = nodeNumber + 1
}
var metadata *AllBuckets
metadata, err = donut.getDonutBucketMetadata()
if err != nil {
if os.IsNotExist(err.ToGoError()) {
metadata = new(AllBuckets)
metadata.Buckets = make(map[string]BucketMetadata)
metadata.Buckets[bucketName] = bucketMetadata
err = donut.setDonutBucketMetadata(metadata)
if err != nil {
return err.Trace()
}
return nil
}
return err.Trace()
}
metadata.Buckets[bucketName] = bucketMetadata
err = donut.setDonutBucketMetadata(metadata)
if err != nil {
return err.Trace()
}
return nil
}
// makeDonutBucket -
func (donut API) makeDonutBucket(bucketName, acl string) error {
if err := donut.listDonutBuckets(); err != nil {
return iodine.New(err, nil)
}
if _, ok := donut.buckets[bucketName]; ok {
return iodine.New(BucketExists{Bucket: bucketName}, nil)
}
bucket, bucketMetadata, err := newBucket(bucketName, acl, donut.config.DonutName, donut.nodes)
if err != nil {
return iodine.New(err, nil)
}
nodeNumber := 0
donut.buckets[bucketName] = bucket
for _, node := range donut.nodes {
disks, err := node.ListDisks()
if err != nil {
return iodine.New(err, nil)
}
for order, disk := range disks {
bucketSlice := fmt.Sprintf("%s$%d$%d", bucketName, nodeNumber, order)
err := disk.MakeDir(filepath.Join(donut.config.DonutName, bucketSlice))
if err != nil {
return iodine.New(err, nil)
}
}
nodeNumber = nodeNumber + 1
}
metadata, err := donut.getDonutBucketMetadata()
if err != nil {
if os.IsNotExist(iodine.ToError(err)) {
metadata := new(AllBuckets)
metadata.Buckets = make(map[string]BucketMetadata)
metadata.Buckets[bucketName] = bucketMetadata
err = donut.setDonutBucketMetadata(metadata)
if err != nil {
return iodine.New(err, nil)
}
return nil
}
return iodine.New(err, nil)
}
metadata.Buckets[bucketName] = bucketMetadata
err = donut.setDonutBucketMetadata(metadata)
if err != nil {
return iodine.New(err, nil)
}
return nil
}