Limits

To ensure optimal performance for all users, Bunny Storage has limits on concurrent connections and uploads.

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Connection limits

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How limits are applied

Limits are applied on a per-server basis. Each Bunny Storage region runs multiple servers, and each server tracks limits independently. In practice, this allows you to achieve much higher concurrency than the per-server limits suggest.

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Rate limit responses

When you reach a connection limit, further requests will be rejected with:

• HTTP Status Code: 429 (Too Many Requests)
• FTP Response: Connection refused

If this happens:

1. Reduce concurrent connections
2. Implement exponential backoff retry logic
3. Distribute requests across longer time periods

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Durability and reliability

For information about data durability, redundancy, and reliability guarantees, see Durability.