This topic describes the causes of and solutions for the HTTP 424 error returned by Object Storage Service (OSS).
MirrorFailed
Mirroring failed, please check your mirror configuration
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Cause: The configured origin URL cannot be accessed or the requested object does not exist at the origin.
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Solution: See Overview to check whether the origin URL is valid.
Read body from mirror host failed, please check your mirror host
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Cause: Data cannot be read from the origin.
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Solution: Check whether objects at the origin URL are accessible.
Bytes read is not equal to expected
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Cause: Data read from the origin is missing or invalid.
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Solution: Check whether the origin can send data to OSS.
MD5 in header() is not equal to MD5 calculated
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Cause: The MD5 hash of the object from the origin does not match the Content-MD5 value. OSS does not save the object because of this mismatch.
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Solution: Check the origin services and network for issues that might cause the MD5 mismatch.
The object you specified already exists and can not be overwritten
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Cause: The object already exists and cannot be overwritten.
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Solution: Overwriting an object with the same name is not supported. Use GetBucket (ListObjects) to check for existing objects.
The object you specified is immutable
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Cause: Objects cannot be written to the bucket because the bucket is protected by a retention policy.
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Solution: Ensure the destination bucket is not protected by a retention policy. Use GetBucketWorm to check the protection status of the bucket.
Meta is too large
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Cause: The size of the user-defined metadata exceeds the limit.
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Solution: An object can have multiple user-defined metadata entries. However, the total size of all user-defined metadata cannot exceed 8 KB.
Mirror request is rejected by QoS
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Cause: The number of queries per second (QPS) exceeds the limit.
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Solution: For mirroring-based back-to-origin, the default QPS is 2,000 and the default traffic is 2 Gbit/s in regions in China. In regions outside China, the default QPS is 1,000 and the default traffic is 1 Gbit/s. If your business requires a higher QPS, contact technical support.
Error status : 0 from mirror host, should return 200 OK
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Cause: The origin rejected the origin request.
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Solution: Disable the interception policy on the origin firewall or in the BT-Panel.