AWS emr documentation change
Summary
Added documentation about S3 request scaling optimization for Iceberg workloads with new entropy scheme to reduce throttling
Security assessment
Change describes performance optimization to handle S3 throttling, not a security vulnerability or security feature addition
Diff
diff --git a/emr/latest/ReleaseGuide/emr-740-release.md b/emr/latest/ReleaseGuide/emr-740-release.md index a7b2898fb..2227f8fbf 100644 --- a//emr/latest/ReleaseGuide/emr-740-release.md +++ b//emr/latest/ReleaseGuide/emr-740-release.md @@ -126 +126 @@ Note that The default behavior of the Spark external shuffle service, when runni - * Not applicable + * **Optimizing S3 Request Scaling for Iceberg Workloads** – For customers that use Iceberg bundled with EMR 34 v7.4 releases, S3 has updated the default entropy scheme to a 20-character base-2 (e.g. 35 01010110100110110010) hash. This new base-2 entropy scheme reduces the character range and allows S3 to automatically scale request capacity more quickly to match the demands of the target Iceberg workload. It also reduces the amount of time that a workload observes 503 throttle responses.