zhtaoxiang commented on code in PR #10264:
URL: https://github.com/apache/pinot/pull/10264#discussion_r1103059941


##########
pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/PinotHelixResourceManager.java:
##########
@@ -3246,16 +3247,18 @@ public String startReplaceSegments(String 
tableNameWithType, List<String> segmen
 
     // Check that all the segments from 'segmentsFrom' exist in the table
     Set<String> segmentsForTable = new 
HashSet<>(getSegmentsFor(tableNameWithType, true));
-    Preconditions.checkArgument(segmentsForTable.containsAll(segmentsFrom), 
String.format(
-        "Not all segments from 'segmentsFrom' are available in the table. 
(tableName = '%s', segmentsFrom = '%s', "
-            + "segmentsTo = '%s', segmentsFromTable = '%s')", 
tableNameWithType, segmentsFrom, segmentsTo,
-        segmentsForTable));
+    Set<String> unavailableSegmentsInFrom = Sets.difference(new 
HashSet<>(segmentsFrom), segmentsForTable);
+    Preconditions.checkArgument(unavailableSegmentsInFrom.isEmpty(), 
String.format(
+        "'%s' from 'segmentsFrom' are unavailable in the table. (tableName = 
'%s', segmentsFrom = '%s', "
+            + "segmentsTo = '%s', segmentsFromTable = '%s')", 
unavailableSegmentsInFrom, tableNameWithType,

Review Comment:
   good point, let me remove it



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