咨询 br备份到自建对象存储，自建对象存储无region。--s3.region 参数怎么设置？

有猫万事足 · 2025 年1 月 16 日 09:43

pingcap/tidb/blob/1f57e583f25d2afe5e80cbf0db8050cccd88f8ae/br/pkg/storage/s3.go#L64


      
          	notFound             = "NotFound"
          	// number of retries to make of operations.
          	maxRetries = 7
          	// max number of retries when meets error
          	maxErrorRetries = 3
          	ec2MetaAddress  = "169.254.169.254"
          
          	// the maximum number of byte to read for seek.
          	maxSkipOffsetByRead = 1 << 16 // 64KB
          
          	defaultRegion = "us-east-1"
          	// to check the cloud type by endpoint tag.
          	domainAliyun = "aliyuncs.com"
          )
          
          var permissionCheckFn = map[Permission]func(context.Context, s3iface.S3API, *backuppb.S3) error{
          	AccessBuckets:      s3BucketExistenceCheck,
          	ListObjects:        listObjectsCheck,
          	GetObject:          getObjectCheck,
          	PutAndDeleteObject: PutAndDeleteObjectCheck,
          }

defaultRegion就是us-east-1。

github.com

pingcap/tidb/blob/1f57e583f25d2afe5e80cbf0db8050cccd88f8ae/br/pkg/storage/s3.go#L340


      
          	return newCred, nil
          }
          
          // NewS3Storage initialize a new s3 storage for metadata.
          func NewS3Storage(ctx context.Context, backend *backuppb.S3, opts *ExternalStorageOptions) (obj *S3Storage, errRet error) {
          	qs := *backend
          	awsConfig := aws.NewConfig().
          		WithS3ForcePathStyle(qs.ForcePathStyle).
          		WithCredentialsChainVerboseErrors(true)
          	if qs.Region == "" {
          		awsConfig.WithRegion(defaultRegion)
          	} else {
          		awsConfig.WithRegion(qs.Region)
          	}
          
          	if opts.S3Retryer != nil {
          		request.WithRetryer(awsConfig, opts.S3Retryer)
          	} else {
          		request.WithRetryer(awsConfig, defaultS3Retryer())
          	}

当Region没写的时候，就把us-east-1设置为region。

所以这里的报错才是这样。

那这样的话，region还必须要有个值。
这个还得让你们的s3提供方，想想办法。