steveloughran commented on code in PR #12264:
URL: https://github.com/apache/iceberg/pull/12264#discussion_r2007345417


##########
aws/src/main/java/org/apache/iceberg/aws/s3/S3FileIO.java:
##########
@@ -275,6 +275,7 @@ private List<String> deleteBatch(String bucket, 
Collection<String> keysToDelete)
         DeleteObjectsRequest.builder()
             .bucket(bucket)
             .delete(Delete.builder().objects(objectIds).build())
+            
.overrideConfiguration(S3RequestUtil.disableStrongIntegrityChecksums())

Review Comment:
   I think they're slightly different checksums; there's always been md5 in 
places (bulk delete?) ; AWS S3 and this SDK have moved to a stronger checksum 
algorithm. When that is disabled you still need to restore the MD5 signing 
where retired.
   
   It may be best to move to an enum here, e.g. "none, classic, strong" to cope 
with any future changes.



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