alibabacloud-oss-quota-throttling-diagnosis

Read-only OSS QPS/bandwidth quota and throttling diagnostics. Use when requests persistently hit 503/SlowDown or clients time out with no server errors. Covers watermark guidance, a throttling attribution decision tree, optimization (concurrency, prefix hashing, backoff), quota-increase guidance, ActiveRequestLimitExceeded concurrency throttling, and resource pool QoS / dedicated bandwidth consultation. Triggers: "QPS limit exceeded", "bandwidth saturated", "timeout without server errors", "persistent SlowDown 503", "quota increase request", "TotalQpsLimitExceeded", "x-oss-qos-delay-time", "Ac