The shardingOperationFailedStatus is an attribute of the OperationShardingState that indicates an error encountered during the processing of a write command entry. This error is not a top-level error and will not be the result of the write command.

If the shardingOperationFailedStatus is set, it will trigger a best effort metadata refresh if it is a stale error before returning to the router at the service entry point level.

The current name of this attribute is outdated, and it should be changed to a more descriptive and appropriate name based on its purpose.