xichen01 commented on code in PR #11229:
URL: https://github.com/apache/ozone/pull/11229#discussion_r4018235134
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hadoop-ozone/s3gateway/src/main/java/org/apache/hadoop/ozone/s3/util/S3Consts.java:
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@@ -131,6 +131,11 @@ public final class S3Consts {
/** Request header carrying the list of object attributes to return. */
public static final String OBJECT_ATTRIBUTES_HEADER =
"x-amz-object-attributes";
+ // S3 storage class values passed via the `x-amz-storage-class` request
header.
+ public static final String S3_STORAGE_CLASS_STANDARD = "STANDARD";
+ public static final String S3_STORAGE_CLASS_STANDARD_IA = "STANDARD_IA";
+ public static final String S3_STORAGE_CLASS_GLACIER = "GLACIER";
+
Review Comment:
AWS's `StorageClass` https://aws.amazon.com/s3/storage-classes does not
explicitly specify the replica types or storage media types for each
StorageClass; instead, it defines concepts such as durability, SLA, zones, and
latency , etc for different `StorageClasses`
Ozone’s S3 `StorageClasses` can have custom definitions; users can specify
the storage medium (storage policy) and replica type through S3 StorageClass
parameter, which does not conflict with AWS S3’s `StorageClasses`.
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