smengcl commented on code in PR #11018:
URL: https://github.com/apache/ozone/pull/11018#discussion_r3834671780
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hadoop-ozone/common/src/main/java/org/apache/hadoop/ozone/om/helpers/OmKeyInfo.java:
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@@ -74,6 +74,11 @@ public final class OmKeyInfo extends WithParentObjectId
// name of key client specified
private String keyName;
private long dataSize;
+ /**
+ * Block locations of the key, one group per key version. No write path
produces more than one group today, so a
+ * key holds a single version and {@code dataSize} covers all of its blocks.
Object versioning (HDDS-15728) keeps
+ * each object version in its own OmKeyInfo rather than adding groups here.
+ */
private List<OmKeyLocationInfoGroup> keyLocationVersions;
Review Comment:
Thanks @chihsuan . Let's just document it properly atm.
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