# Alibabacloud Oss Quota Throttling Diagnosis

> Read-only OSS QPS/bandwidth quota and throttling diagnostics.

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", "ActiveRequestLimitExceeded", "resource pool QoS", "dedicated bandwidth".
Not for one-off SlowDown / single-request error codes, client-tool connection timeouts, transfer acceleration selection, endpoint errors, or billing (use the matching OSS diagnosis skill); never applies changes.

- Page: https://ss33.ai/skills/aliyun/alibabacloud-oss-quota-throttling-diagnosis-9833020484
- Publisher: aliyun
- Category: [Software Development](https://ss33.ai/skills/category/software-development-t44z8z) › [DevOps & cloud](https://ss33.ai/skills/category/software-development-t44z8z/devops-and-cloud-unkt50)
- Source: https://github.com/aliyun/alibabacloud-aiops-skills/blob/32598d65d9643343f0580393355f1e4803fc5007/skills/others/cseskillshub/alibabacloud-oss-quota-throttling-diagnosis/SKILL.md

## Skill

This skill's licence does not allow redistribution, so the store does not serve its text. Get it from the author: https://github.com/aliyun/alibabacloud-aiops-skills/blob/32598d65d9643343f0580393355f1e4803fc5007/skills/others/cseskillshub/alibabacloud-oss-quota-throttling-diagnosis/SKILL.md