Amazon Bedrock 529 overloaded_error: what it means and how to fix it

What it means

The model is temporarily unable to process the request because of high demand or insufficient serving capacity. This is a transient capacity error, different from a 429 ThrottlingException, which indicates the request exceeded an account quota.

Causes

• High demand for the model
• Insufficient serving capacity

How to fix it

1. 1
   Fix 1.

   Retry using exponential backoff and random jitter. If the response includes a Retry-After header, wait for the specified time before retrying.

2. 2
   Fix 2.

   Avoid immediate or synchronized retries from multiple clients.

3. 3
   Fix 3.

   If the model supports it, use cross-Region inference to route requests across multiple AWS Regions.

4. 4
   Fix 4.

   If the error persists, contact AWS Support with the request ID, model ID, AWS Region, and approximate timestamp.