sergey-chugunov-1985 commented on code in PR #12401:
URL: https://github.com/apache/ignite/pull/12401#discussion_r2428135420


##########
modules/core/src/main/java/org/apache/ignite/internal/processors/cache/binary/BinaryMetadataVersionInfo.java:
##########
@@ -22,29 +22,44 @@
 /**
  * Wrapper for {@link BinaryMetadata} which is stored in metadata local cache 
on each node.
  * Used internally to track version counters (see javadoc for {@link 
MetadataUpdateProposedMessage} for more details).
+ * The version refers solely to the internal protocol for updating 
BinaryMetadata and is unknown externally.
+ * It can be updated dynamically from different nodes and threads on the same 
node.
  */
-final class BinaryMetadataHolder implements Serializable {
+final class BinaryMetadataVersionInfo implements Serializable {
     /** */
     private static final long serialVersionUID = 0L;
 
-    /** */
+    /** The actual binary metadata. */
     private final BinaryMetadata metadata;
 
-    /** */
+    /**
+     * The version of metadata that has been proposed for update. This 
represents how many updates have been issued for

Review Comment:
   ```suggestion
        * The version of metadata that has been proposed for update. This 
represents how many unique updates have been issued for
   ```



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