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Tim-Brooks · Jun 22, 2023 · a869bf0 · a869bf0
1 parent 1b7258f
commit a869bf0
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/server/src/main/java/org/elasticsearch/index/engine/InternalEngine.java b/server/src/main/java/org/elasticsearch/index/engine/InternalEngine.java
@@ -2849,7 +2849,8 @@ protected void commitIndexWriter(final IndexWriter writer, final Translog transl
     }
 
     /**
-     * Allows InternalEngine extenders to return custom key-value pairs which will be included in the Lucene commit user-data.
+     * Allows InternalEngine extenders to return custom key-value pairs which will be included in the Lucene commit user-data. Custom user
+     * data keys can be overwritten by if their keys conflict keys used by InternalEngine.
      */
     protected Map<String, String> getCommitExtraUserData() {
         return Collections.emptyMap();