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e019f21bda
Previously we added heal trigger when bit-rot checks failed, now extend that to support heal when parts are not found either. This healing gets only triggered if we can successfully decode the object i.e read quorum is still satisfied for the object.
49 lines
1.4 KiB
Go
49 lines
1.4 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2016-2020 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 cmd
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import (
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"context"
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"io"
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"github.com/minio/minio/cmd/logger"
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)
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// Heal heals the shard files on non-nil writers. Note that the quorum passed is 1
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// as healing should continue even if it has been successful healing only one shard file.
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func (e Erasure) Heal(ctx context.Context, readers []io.ReaderAt, writers []io.Writer, size int64) error {
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r, w := io.Pipe()
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go func() {
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if _, err := e.Decode(ctx, w, readers, 0, size, size, nil); err != nil {
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w.CloseWithError(err)
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return
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}
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w.Close()
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}()
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buf := make([]byte, e.blockSize)
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// quorum is 1 because CreateFile should continue writing as long as we are writing to even 1 disk.
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n, err := e.Encode(ctx, r, writers, buf, 1)
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if err != nil {
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return err
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}
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if n != size {
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logger.LogIf(ctx, errLessData)
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return errLessData
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}
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return nil
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}
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