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lib/backup/s3remote: check whether the file exists before deleting it

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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/284
This commit is contained in:
Aliaksandr Valialkin 2020-01-09 23:20:13 +02:00
parent f358fb72d1
commit b8038a14e7
1 changed files with 14 additions and 5 deletions
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19
lib/backup/s3remote/s3.go
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@ -230,16 +230,25 @@ func (fs *FS) UploadPart(p common.Part, r io.Reader) error {
//
// The function does nothing if the file doesn't exist.
func (fs *FS) DeleteFile(filePath string) error {
// It looks like s3 may return `AccessDenied: Access Denied` instead of `s3.ErrCodeNoSuchKey`
// on an attempt to delete non-existing file.
// so just check whether the filePath exists before deleting it.
// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/284 for details.
ok, err := fs.HasFile(filePath)
if err != nil {
return err
}
if !ok {
// Missing file - nothing to delete.
return nil
}
path := fs.Dir + filePath
input := &s3.DeleteObjectInput{
Bucket: aws.String(fs.Bucket),
Key: aws.String(path),
}
_, err := fs.s3.DeleteObject(input)
if err != nil {
if ae, ok := err.(awserr.Error); ok && ae.Code() == s3.ErrCodeNoSuchKey {
return nil
}
if _, err := fs.s3.DeleteObject(input); err != nil {
return fmt.Errorf("cannot delete %q at %s (remote path %q): %s", filePath, fs, path, err)
}
return nil