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minio/pkg/xl/heal.go

70 lines
1.8 KiB

/*
* Minio Cloud Storage, (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package xl
import (
"encoding/json"
"fmt"
"path/filepath"
"github.com/minio/minio/pkg/probe"
"github.com/minio/minio/pkg/xl/block"
)
// healBuckets heal bucket slices
func (xl API) healBuckets() *probe.Error {
if err := xl.listXLBuckets(); err != nil {
return err.Trace()
}
bucketMetadata, err := xl.getXLBucketMetadata()
if err != nil {
return err.Trace()
}
disks := make(map[int]block.Block)
for _, node := range xl.nodes {
nDisks, err := node.ListDisks()
if err != nil {
return err.Trace()
}
for k, v := range nDisks {
disks[k] = v
}
}
for order, disk := range disks {
if disk.IsUsable() {
disk.MakeDir(xl.config.XLName)
bucketMetadataWriter, err := disk.CreateFile(filepath.Join(xl.config.XLName, bucketMetadataConfig))
if err != nil {
return err.Trace()
}
defer bucketMetadataWriter.Close()
jenc := json.NewEncoder(bucketMetadataWriter)
if err := jenc.Encode(bucketMetadata); err != nil {
return probe.NewError(err)
}
for bucket := range bucketMetadata.Buckets {
bucketSlice := fmt.Sprintf("%s$0$%d", bucket, order) // TODO handle node slices
err := disk.MakeDir(filepath.Join(xl.config.XLName, bucketSlice))
if err != nil {
return err.Trace()
}
}
}
}
return nil
}