This topic describes the causes of errors returned with HTTP status code 503 and the solutions to these errors.

DownloadTrafficRateLimitExceeded

  • Error message: Please reduce your upload request traffic.
  • Cause: The error message returned because the downloading traffic exceeds the limit.
  • Solution: The default limit of download traffic over the Internet and internal networks is 5 Gbit/s. To adjust the limit, submit a ticket.

UploadTrafficRateLimitExceeded

  • Error message: Please reduce your upload request traffic.
  • Cause: The error message returned because the uploading traffic exceeds the limit.
  • Solution: The default limit of upload traffic through the Internet and internal networks is 5 Gbit/s. To adjust the limit, submit a ticket.

MetaOperationQpsLimitExceeded

  • Error message: Qps limit for the meta operation is exceeded.
  • Cause: The error message returned because the QPS exceeds the default limit.

    OSS limits the QPS for the following API operations:

    • Operations related to services, such as GetService (ListBuckets)
    • Operations related to buckets, such as PutBucket and GetBucketLifecycle
    • Operations related to CORS, such as PutBucketCORS and GetBucketCORS
    • Operations related to LiveChannel, such as PutLiveChannel and DeleteLiveChannel.
  • Solution: We recommend that you perform the operation again after a few seconds.