This PR patches a gap with SigV4a signing for the CRT S3 transfer manager. On performance-optimized instance types [list], the CRT will auto-enable itself for all high-level aws s3 commands. This may lead to signature mismatches for Multi-Region Access Points backed by buckets in other regions.
Customers currently encountering this issue can bypass the problem by setting preferred_transfer_client to classic (docs). That mitigation will no longer be needed after this patch is merged.
This PR patches a gap with SigV4a signing for the CRT S3 transfer manager. On performance-optimized instance types [list], the CRT will auto-enable itself for all high-level
aws s3commands. This may lead to signature mismatches for Multi-Region Access Points backed by buckets in other regions.Customers currently encountering this issue can bypass the problem by setting
preferred_transfer_clienttoclassic(docs). That mitigation will no longer be needed after this patch is merged.