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