What could be a reason for encountering a 403 error while having a write traffic of 10 MB/s?

Encountering a 403 error often indicates that access is forbidden for a particular request. When considering the provided choices, the reason associated with high write traffic being too much for a single partition is valid.

In systems that manage data partitions, each partition has a specific throughput limit. If your write traffic reaches or exceeds the set limit for a single partition—10 MB/s in this case—it may trigger a 403 error due to the system’s inability to process the request correctly. This is akin to sending too many requests to one lane of traffic; when the capacity is maxed out, further requests are denied, resulting in restricted access.

Managing throughput by distributing data across multiple partitions or reducing the volume of write operations to stay within limits would help mitigate this issue. Understanding partition limits is crucial for optimizing performance and ensuring that applications are built in accordance with the infrastructure's specifications.