danny0405 commented on code in PR #10976:
URL: https://github.com/apache/hudi/pull/10976#discussion_r1555492722


##########
hudi-common/src/main/java/org/apache/hudi/common/table/view/AbstractTableFileSystemView.java:
##########
@@ -140,6 +141,22 @@ protected void init(HoodieTableMetaClient metaClient, 
HoodieTimeline visibleActi
    */
   protected void refreshTimeline(HoodieTimeline visibleActiveTimeline) {
     this.visibleCommitsAndCompactionTimeline = 
visibleActiveTimeline.getWriteTimeline();
+    this.timelineHashAndPendingReplaceInstants = null;
+  }
+
+  /**
+   * Get a list of pending replace instants. Caches the result for the active 
timeline.
+   * The cache is invalidated when {@link #refreshTimeline(HoodieTimeline)} is 
called.
+   *
+   * @return list of pending replace instant timestamps
+   */
+  private List<String> getPendingReplaceInstants() {
+    HoodieActiveTimeline activeTimeline = metaClient.getActiveTimeline();

Review Comment:
   And do you think we should move the cache into the timeline itself, we 
already introduced some caches there for speeding up, check the 
`HoodieDefaultTimeline` for the cache.



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