acvictor commented on code in PR #6022:
URL: https://github.com/apache/incubator-gluten/pull/6022#discussion_r1634251258


##########
gluten-core/src/main/scala/org/apache/spark/shuffle/sort/ColumnarShuffleManager.scala:
##########
@@ -143,44 +107,29 @@ class ColumnarShuffleManager(conf: SparkConf) extends 
ShuffleManager with Loggin
         shouldBatchFetch = shouldBatchFetch
       )
     } else {
-      new BlockStoreShuffleReader(
-        handle.asInstanceOf[BaseShuffleHandle[K, _, C]],
-        blocksByAddress,
+      sortShuffleManager.getReader(
+        handle,
+        startMapIndex,
+        endMapIndex,
+        startPartition,
+        endPartition,
         context,
-        metrics,
-        shouldBatchFetch = shouldBatchFetch
-      )
+        metrics)
     }
   }
 
   /** Remove a shuffle's metadata from the ShuffleManager. */
   override def unregisterShuffle(shuffleId: Int): Boolean = {
-    Option(taskIdMapsForShuffle.remove(shuffleId)).foreach {
-      mapTaskIds =>
-        mapTaskIds.iterator.foreach {
-          mapId => shuffleBlockResolver.removeDataByMap(shuffleId, mapId)
-        }
-    }
-    true
+    sortShuffleManager.unregisterShuffle(shuffleId)

Review Comment:
   I missed this thanks, updated shuffleBlockResolver related flow.



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