EC2/EBS Throttling / Quota Diagnostic Troubleshooter (Part 4)
Use the interactive troubleshooter below to identify your EC2/EBS throttling or quota symptom, review the raw evidence, understand the root cause, and apply the recommended fix.
🚨 Step 1: What specific error symptom are you experiencing?
Please click the most accurate description:
Quick Reference Table
| # | Scenario | Key Error Signal | Root Cause | The Fix |
|---|---|---|---|---|
| 1 | throttl — ThrottlingException (account-level) | HTTP 400 ThrottlingException | The number of API requests has exceeded the maximum allowed API request throttling limit for the account. | N/A |
| 2 | throttl — RequestThrottleException (snapshot-level) | HTTP 400 RequestThrottleException | The number of API requests has exceeded the maximum allowed API request throttling limit for the snapshot. | N/A |
| 3 | throttl — IMDS per-instance connection limit exceeded | We throttle queries to the IMDS on a per-instance basis, and we place limits on the number of simultaneous connections from an instance to the IMDS. | Querying IMDS for credentials concurrently from a high number of threads or processes exceeded the per-instance connection limits. | Cache credentials until they approach expiry time and retry your query with an exponential backoff strategy. |
| 4 | quota — ServiceQuotaExceededException | HTTP 402 ServiceQuotaExceededException | The request failed because fulfilling the request would exceed one or more dependent service quotas for your account. | N/A |