benesch opened a new pull request, #6801:
URL: https://github.com/apache/arrow-rs/pull/6801
As of today [0] S3 now supports the If-Match for in-place conditional
writes. This commit adjusts the existing support for S3ConditionalPut::Etag
mode for compatibility with real S3's particular semantics, which vary slightly
from MinIO and R2. Specifically:
* Real S3 can occasionally return 409 Conflict when concurrent If-Match
requests are in progress. These requests need to be retried.
* Real S3 returns 404 Not Found instead of 412 Precondition Failed when
issuing an If-Match request against an object that does not exist.
Fix #6799.
[0]:
https://aws.amazon.com/about-aws/whats-new/2024/11/amazon-s3-functionality-conditional-writes/
# Which issue does this PR close?
#6799
# Are there any user-facing changes?
None beyond what's described in the PR description.
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