HomeBrandsAWS S3Object Storageslowdown
A
slowdown
Moderate
AWS S3 · Object Storage
S3 is throttling requests; reduce request rate.
Quick Answer
Error code SlowDown on your AWS S3 Object Storage means: S3 is throttling requests; reduce request rate.. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
S3-CLIS3-SDK-JSS3-BOTO3S3-CONSOLES3-CRRS3-REST
Likely Causes
  1. Request throughput exceeded per-token, per-endpoint, or per-account rate budget.
  2. Burst traffic pattern lacks backoff and pacing controls under provider limits.
  3. Concurrent workers retried aggressively, amplifying throttling conditions.
How to Fix It
1
AWS S3: Read response headers/body for retry window and current rate-limit counters.
2
Apply exponential backoff with jitter and centralize retry policy across workers.
3
Throttle batch jobs and fan-out workers to stay under documented request ceilings.
4
Cache idempotent reads and coalesce duplicate requests where possible.
5
Monitor throttling metrics and request quota increases if sustained traffic requires it.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Related Error Codes
AccessControlListNotSupportedAccessDeniedAccessPointAlreadyOwnedByYouAccountProblemAllAccessDisabled
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